BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Taxller//Tax Calendar//EN
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:form-5472-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260415
SUMMARY:Form 5472 + pro-forma 1120
DESCRIPTION:An information return reporting transactions between a foreign-
 owned US disregarded entity and its foreign owner or other related parties
 . https://taxller.com/tax-calendar/iowa/#form-5472
URL:https://taxller.com/tax-calendar/iowa/#form-5472
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 5472 + pro-forma 1120
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 5472 + pro-forma 1120
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 5472 + pro-forma 1120
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 5472 + pro-forma 1120
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-7004-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260415
SUMMARY:Form 7004 (extension request)
DESCRIPTION:A request for an automatic 6-month extension to file the corpor
 ate return that Form 5472 is attached to. https://taxller.com/tax-calendar
 /iowa/#form-7004
URL:https://taxller.com/tax-calendar/iowa/#form-7004
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 7004 (extension request)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 7004 (extension request)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 7004 (extension request)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 7004 (extension request)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-5472-ext-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261015
SUMMARY:Form 5472 + pro-forma 1120 (extended deadline)
DESCRIPTION:The same Form 5472 + pro-forma 1120 filing\, now due on the ext
 ended date after Form 7004 was filed. https://taxller.com/tax-calendar/iow
 a/#form-5472-ext
URL:https://taxller.com/tax-calendar/iowa/#form-5472-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1040nr-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260615
SUMMARY:Form 1040-NR
DESCRIPTION:The US nonresident individual income tax return\, used to repor
 t income effectively connected with a US trade or business. https://taxlle
 r.com/tax-calendar/iowa/#form-1040nr
URL:https://taxller.com/tax-calendar/iowa/#form-1040nr
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040-NR
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040-NR
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040-NR
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040-NR
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1065-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260316
SUMMARY:Form 1065 + Schedule K-1
DESCRIPTION:The partnership return reporting the LLC income\, deductions\, 
 and the share allocated to each member for the year. https://taxller.com/t
 ax-calendar/iowa/#form-1065
URL:https://taxller.com/tax-calendar/iowa/#form-1065
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1065 + Schedule K-1
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1065 + Schedule K-1
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1065 + Schedule K-1
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1065 + Schedule K-1
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120s-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260316
SUMMARY:Form 1120-S
DESCRIPTION:The income tax return for an S corporation\, reporting income a
 nd deductions passed through to its shareholders. https://taxller.com/tax-
 calendar/iowa/#form-1120s
URL:https://taxller.com/tax-calendar/iowa/#form-1120s
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120-S
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120-S
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120-S
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120-S
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:schedule-c-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260415
SUMMARY:Form 1040 + Schedule C
DESCRIPTION:Schedule C reports the profit or loss of a sole proprietorship 
 or single-member LLC as part of the personal return of its owner. https://
 taxller.com/tax-calendar/iowa/#schedule-c
URL:https://taxller.com/tax-calendar/iowa/#schedule-c
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040 + Schedule C
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040 + Schedule C
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040 + Schedule C
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040 + Schedule C
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q4-prior-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260115
SUMMARY:1040-ES — Q4 estimated payment (prior year)
DESCRIPTION:The fourth and final quarterly estimated tax payment for the pr
 evious tax year. https://taxller.com/tax-calendar/iowa/#est-q4-prior
URL:https://taxller.com/tax-calendar/iowa/#est-q4-prior
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q1-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260415
SUMMARY:1040-ES — Q1 estimated payment
DESCRIPTION:The first quarterly estimated tax payment for the current tax y
 ear. https://taxller.com/tax-calendar/iowa/#est-q1
URL:https://taxller.com/tax-calendar/iowa/#est-q1
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q2-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260615
SUMMARY:1040-ES — Q2 estimated payment
DESCRIPTION:The second quarterly estimated tax payment for the current tax 
 year. https://taxller.com/tax-calendar/iowa/#est-q2
URL:https://taxller.com/tax-calendar/iowa/#est-q2
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q3-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260915
SUMMARY:1040-ES — Q3 estimated payment
DESCRIPTION:The third quarterly estimated tax payment for the current tax y
 ear. https://taxller.com/tax-calendar/iowa/#est-q3
URL:https://taxller.com/tax-calendar/iowa/#est-q3
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1065-ext-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260915
SUMMARY:Form 1065 / 1120-S (extended deadline)
DESCRIPTION:The extended filing deadline for Form 1065 or Form 1120-S after
  a 6-month extension was requested. https://taxller.com/tax-calendar/iowa/
 #form-1065-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1065-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1040-ext-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261015
SUMMARY:Form 1040 (extended deadline)
DESCRIPTION:The extended filing deadline for the individual Form 1040\, inc
 luding Schedule C\, after a filing extension was requested. https://taxlle
 r.com/tax-calendar/iowa/#form-1040-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1040-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040 (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040 (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040 (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040 (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1099k-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260202
SUMMARY:Form 1099-K from your payment processors
DESCRIPTION:A report of the gross payments a payment processor handled for 
 you during the year\, sent to you and to the IRS. You get one from Amazon\
 , and a separate one from every other processor you use — Shopify Paymen
 ts\, Stripe\, PayPal\, and so on. https://taxller.com/tax-calendar/iowa/#f
 orm-1099k
URL:https://taxller.com/tax-calendar/iowa/#form-1099k
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1099-K from your payment processors
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1099-K from your payment processors
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1099-K from your payment processors
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1099-K from your payment processors
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1099nec-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260202
SUMMARY:Form 1099-NEC to contractors
DESCRIPTION:A report of nonemployee compensation paid to a US-based contrac
 tor or freelancer during the year. https://taxller.com/tax-calendar/iowa/#
 form-1099nec
URL:https://taxller.com/tax-calendar/iowa/#form-1099nec
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1099-NEC to contractors
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1099-NEC to contractors
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1099-NEC to contractors
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1099-NEC to contractors
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260415
SUMMARY:Form 1120 — C-corporation income tax return
DESCRIPTION:The annual income tax return for a C corporation\, including a 
 Delaware Inc. formed through a service like Stripe Atlas. https://taxller.
 com/tax-calendar/iowa/#form-1120
URL:https://taxller.com/tax-calendar/iowa/#form-1120
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120-ext-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261015
SUMMARY:Form 1120 — extended deadline (Form 7004)
DESCRIPTION:The extended filing deadline for Form 1120 after Form 7004 was 
 filed by the original April 15 due date. https://taxller.com/tax-calendar/
 iowa/#form-1120-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1120-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m01-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260202
SUMMARY:Iowa sales and use tax return — December 2025
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m01
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m01
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — December 202
 5
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — December 202
 5
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — December 2025
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — December 2025
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m02-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260302
SUMMARY:Iowa sales and use tax return — January 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m02
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m02
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — January 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — January 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — January 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — January 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m03-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260331
SUMMARY:Iowa sales and use tax return — February 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m03
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m03
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — February 202
 6
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — February 202
 6
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — February 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — February 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m04-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260430
SUMMARY:Iowa sales and use tax return — March 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m04
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m04
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — March 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — March 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — March 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — March 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m05-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260601
SUMMARY:Iowa sales and use tax return — April 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m05
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m05
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — April 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — April 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — April 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — April 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m06-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260630
SUMMARY:Iowa sales and use tax return — May 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m06
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m06
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — May 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — May 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — May 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — May 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m07-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260731
SUMMARY:Iowa sales and use tax return — June 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m07
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m07
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — June 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — June 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — June 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — June 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m08-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260831
SUMMARY:Iowa sales and use tax return — July 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m08
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m08
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — July 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — July 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — July 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — July 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m09-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260930
SUMMARY:Iowa sales and use tax return — August 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m09
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m09
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — August 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — August 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — August 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — August 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m10-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261102
SUMMARY:Iowa sales and use tax return — September 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m10
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m10
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — September 20
 26
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — September 20
 26
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — September 202
 6
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — September 202
 6
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m11-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261130
SUMMARY:Iowa sales and use tax return — October 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m11
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m11
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — October 2026
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — October 2026
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — October 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — October 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m12-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20261231
SUMMARY:Iowa sales and use tax return — November 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m12
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m12
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — November 202
 6
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — November 202
 6
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — November 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — November 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-income-tax-2026@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20260430
SUMMARY:IA 1040 + Schedule IA 126 — Iowa individual income tax
DESCRIPTION:IA 1040 with Schedule IA 126 for nonresidents and part-year res
 idents. https://taxller.com/tax-calendar/iowa/#ia-income-tax
URL:https://taxller.com/tax-calendar/iowa/#ia-income-tax
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — IA 1040 + Schedule IA 126 — Iowa individual 
 income tax
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — IA 1040 + Schedule IA 126 — Iowa individual 
 income tax
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — IA 1040 + Schedule IA 126 — Iowa individual i
 ncome tax
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — IA 1040 + Schedule IA 126 — Iowa individual i
 ncome tax
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-5472-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270415
SUMMARY:Form 5472 + pro-forma 1120
DESCRIPTION:An information return reporting transactions between a foreign-
 owned US disregarded entity and its foreign owner or other related parties
 . https://taxller.com/tax-calendar/iowa/#form-5472
URL:https://taxller.com/tax-calendar/iowa/#form-5472
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 5472 + pro-forma 1120
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 5472 + pro-forma 1120
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 5472 + pro-forma 1120
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 5472 + pro-forma 1120
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-7004-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270415
SUMMARY:Form 7004 (extension request)
DESCRIPTION:A request for an automatic 6-month extension to file the corpor
 ate return that Form 5472 is attached to. https://taxller.com/tax-calendar
 /iowa/#form-7004
URL:https://taxller.com/tax-calendar/iowa/#form-7004
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 7004 (extension request)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 7004 (extension request)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 7004 (extension request)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 7004 (extension request)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-5472-ext-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20271015
SUMMARY:Form 5472 + pro-forma 1120 (extended deadline)
DESCRIPTION:The same Form 5472 + pro-forma 1120 filing\, now due on the ext
 ended date after Form 7004 was filed. https://taxller.com/tax-calendar/iow
 a/#form-5472-ext
URL:https://taxller.com/tax-calendar/iowa/#form-5472-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 5472 + pro-forma 1120 (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1040nr-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270615
SUMMARY:Form 1040-NR
DESCRIPTION:The US nonresident individual income tax return\, used to repor
 t income effectively connected with a US trade or business. https://taxlle
 r.com/tax-calendar/iowa/#form-1040nr
URL:https://taxller.com/tax-calendar/iowa/#form-1040nr
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040-NR
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040-NR
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040-NR
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040-NR
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1065-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270315
SUMMARY:Form 1065 + Schedule K-1
DESCRIPTION:The partnership return reporting the LLC income\, deductions\, 
 and the share allocated to each member for the year. https://taxller.com/t
 ax-calendar/iowa/#form-1065
URL:https://taxller.com/tax-calendar/iowa/#form-1065
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1065 + Schedule K-1
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1065 + Schedule K-1
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1065 + Schedule K-1
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1065 + Schedule K-1
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120s-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270315
SUMMARY:Form 1120-S
DESCRIPTION:The income tax return for an S corporation\, reporting income a
 nd deductions passed through to its shareholders. https://taxller.com/tax-
 calendar/iowa/#form-1120s
URL:https://taxller.com/tax-calendar/iowa/#form-1120s
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120-S
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120-S
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120-S
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120-S
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:schedule-c-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270415
SUMMARY:Form 1040 + Schedule C
DESCRIPTION:Schedule C reports the profit or loss of a sole proprietorship 
 or single-member LLC as part of the personal return of its owner. https://
 taxller.com/tax-calendar/iowa/#schedule-c
URL:https://taxller.com/tax-calendar/iowa/#schedule-c
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040 + Schedule C
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040 + Schedule C
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040 + Schedule C
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040 + Schedule C
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q4-prior-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270115
SUMMARY:1040-ES — Q4 estimated payment (prior year)
DESCRIPTION:The fourth and final quarterly estimated tax payment for the pr
 evious tax year. https://taxller.com/tax-calendar/iowa/#est-q4-prior
URL:https://taxller.com/tax-calendar/iowa/#est-q4-prior
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q4 estimated payment (prior year)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q1-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270415
SUMMARY:1040-ES — Q1 estimated payment
DESCRIPTION:The first quarterly estimated tax payment for the current tax y
 ear. https://taxller.com/tax-calendar/iowa/#est-q1
URL:https://taxller.com/tax-calendar/iowa/#est-q1
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q1 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q2-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270615
SUMMARY:1040-ES — Q2 estimated payment
DESCRIPTION:The second quarterly estimated tax payment for the current tax 
 year. https://taxller.com/tax-calendar/iowa/#est-q2
URL:https://taxller.com/tax-calendar/iowa/#est-q2
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q2 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-q3-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270915
SUMMARY:1040-ES — Q3 estimated payment
DESCRIPTION:The third quarterly estimated tax payment for the current tax y
 ear. https://taxller.com/tax-calendar/iowa/#est-q3
URL:https://taxller.com/tax-calendar/iowa/#est-q3
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — 1040-ES — Q3 estimated payment
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1065-ext-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270915
SUMMARY:Form 1065 / 1120-S (extended deadline)
DESCRIPTION:The extended filing deadline for Form 1065 or Form 1120-S after
  a 6-month extension was requested. https://taxller.com/tax-calendar/iowa/
 #form-1065-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1065-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1065 / 1120-S (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1040-ext-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20271015
SUMMARY:Form 1040 (extended deadline)
DESCRIPTION:The extended filing deadline for the individual Form 1040\, inc
 luding Schedule C\, after a filing extension was requested. https://taxlle
 r.com/tax-calendar/iowa/#form-1040-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1040-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1040 (extended deadline)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1040 (extended deadline)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1040 (extended deadline)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1040 (extended deadline)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1099k-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270201
SUMMARY:Form 1099-K from your payment processors
DESCRIPTION:A report of the gross payments a payment processor handled for 
 you during the year\, sent to you and to the IRS. You get one from Amazon\
 , and a separate one from every other processor you use — Shopify Paymen
 ts\, Stripe\, PayPal\, and so on. https://taxller.com/tax-calendar/iowa/#f
 orm-1099k
URL:https://taxller.com/tax-calendar/iowa/#form-1099k
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1099-K from your payment processors
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1099-K from your payment processors
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1099-K from your payment processors
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1099-K from your payment processors
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1099nec-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270201
SUMMARY:Form 1099-NEC to contractors
DESCRIPTION:A report of nonemployee compensation paid to a US-based contrac
 tor or freelancer during the year. https://taxller.com/tax-calendar/iowa/#
 form-1099nec
URL:https://taxller.com/tax-calendar/iowa/#form-1099nec
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1099-NEC to contractors
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1099-NEC to contractors
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1099-NEC to contractors
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1099-NEC to contractors
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270415
SUMMARY:Form 1120 — C-corporation income tax return
DESCRIPTION:The annual income tax return for a C corporation\, including a 
 Delaware Inc. formed through a service like Stripe Atlas. https://taxller.
 com/tax-calendar/iowa/#form-1120
URL:https://taxller.com/tax-calendar/iowa/#form-1120
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120 — C-corporation income tax return
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:form-1120-ext-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20271015
SUMMARY:Form 1120 — extended deadline (Form 7004)
DESCRIPTION:The extended filing deadline for Form 1120 after Form 7004 was 
 filed by the original April 15 due date. https://taxller.com/tax-calendar/
 iowa/#form-1120-ext
URL:https://taxller.com/tax-calendar/iowa/#form-1120-ext
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Form 1120 — extended deadline (Form 7004)
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m01-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270201
SUMMARY:Iowa sales and use tax return — December 2026
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m01
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m01
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — December 202
 6
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — December 202
 6
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — December 2026
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — December 2026
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m02-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270301
SUMMARY:Iowa sales and use tax return — January 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m02
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m02
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — January 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — January 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — January 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — January 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m03-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270331
SUMMARY:Iowa sales and use tax return — February 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m03
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m03
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — February 202
 7
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — February 202
 7
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — February 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — February 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m04-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270430
SUMMARY:Iowa sales and use tax return — March 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m04
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m04
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — March 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — March 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — March 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — March 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m05-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270601
SUMMARY:Iowa sales and use tax return — April 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m05
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m05
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — April 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — April 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — April 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — April 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m06-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270630
SUMMARY:Iowa sales and use tax return — May 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m06
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m06
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — May 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — May 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — May 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — May 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m07-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270802
SUMMARY:Iowa sales and use tax return — June 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m07
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m07
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — June 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — June 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — June 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — June 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m08-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270831
SUMMARY:Iowa sales and use tax return — July 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m08
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m08
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — July 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — July 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — July 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — July 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m09-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270930
SUMMARY:Iowa sales and use tax return — August 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m09
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m09
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — August 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — August 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — August 2027
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — August 2027
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m10-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20271101
SUMMARY:Iowa sales and use tax return — September 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m10
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m10
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — September 20
 27
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — September 20
 27
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:7 days left — Iowa sales and use tax return — September 202
 7
TRIGGER:-P7D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:1 days left — Iowa sales and use tax return — September 202
 7
TRIGGER:-P1D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia-sales-tax-m11-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20271130
SUMMARY:Iowa sales and use tax return — October 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m11
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m11
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — October 2027
TRIGGER:-P60D
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:30 days left — Iowa sales and use tax return — October 2027
TRIGGER:-P30D
END:VALARM
BEGIN:VALARM
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DESCRIPTION:7 days left — Iowa sales and use tax return — October 2027
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UID:ia-sales-tax-m12-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20280103
SUMMARY:Iowa sales and use tax return — November 2027
DESCRIPTION:The Iowa return includes gross revenue from all Iowa sales and 
 deducts sales made through marketplaces registered to collect Iowa tax. Lo
 cal option sales tax has a separate return section\; a nonzero taxable amo
 unt calls for the Local Option Sales Tax Schedule even when no local optio
 n tax is due. Local calculations are outside this calendar. At least $1\,2
 00 in sales or use tax per calendar year sets monthly filing. Monthly retu
 rns and their remittances are electronic\, with the ordinary deadline stil
 l the last day of the following month. This calendar does not model that e
 lectronic-method condition. An SST Model 1 seller registered through the S
 treamlined Sales Tax Registration System and using a certified service pro
 vider files a simplified electronic return by day 20 of the following mont
 h. This calendar shows the ordinary month-end deadline\, not that conditio
 nal SST return. Seasonal filing is available on request when tax is collec
 ted and remitted in four months or fewer each year\; returns continue for 
 the selected months until the business changes or closes. This calendar sh
 ows monthly and annual schedules. https://taxller.com/tax-calendar/iowa/#i
 a-sales-tax-m12
URL:https://taxller.com/tax-calendar/iowa/#ia-sales-tax-m12
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ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa sales and use tax return — November 202
 7
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 7
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DESCRIPTION:7 days left — Iowa sales and use tax return — November 2027
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DESCRIPTION:1 days left — Iowa sales and use tax return — November 2027
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BEGIN:VEVENT
UID:ia-annual-registration-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270401
SUMMARY:Iowa LLC biennial report
DESCRIPTION:Iowa LLC biennial report in odd-numbered due years. It covers t
 he two-year period immediately preceding the calendar year in which it is 
 filed. https://taxller.com/tax-calendar/iowa/#ia-annual-registration
URL:https://taxller.com/tax-calendar/iowa/#ia-annual-registration
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:60 days left — Iowa LLC biennial report
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DESCRIPTION:1 days left — Iowa LLC biennial report
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BEGIN:VEVENT
UID:ia-income-tax-2027@taxller.com
DTSTAMP:20260803T000000Z
DTSTART;VALUE=DATE:20270430
SUMMARY:IA 1040 + Schedule IA 126 — Iowa individual income tax
DESCRIPTION:IA 1040 with Schedule IA 126 for nonresidents and part-year res
 idents. https://taxller.com/tax-calendar/iowa/#ia-income-tax
URL:https://taxller.com/tax-calendar/iowa/#ia-income-tax
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ACTION:DISPLAY
DESCRIPTION:60 days left — IA 1040 + Schedule IA 126 — Iowa individual 
 income tax
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 income tax
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 ncome tax
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DESCRIPTION:1 days left — IA 1040 + Schedule IA 126 — Iowa individual i
 ncome tax
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