BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Lyra Ventures LLC//FilingDates public calendars//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
NAME:Iowa business filing dates\, 2027 (FilingDates)
X-WR-CALNAME:Iowa business filing dates\, 2027 (FilingDates)
DESCRIPTION:Iowa business filing dates\, 2027. Each event links the officia
 l source it was computed from. Obligations without a verified source are n
 ot in this feed\; the web page lists them as unsupported. A reminder only:
  confirm with the source before filing.
X-WR-CALDESC:Iowa business filing dates\, 2027. Each event links the offici
 al source it was computed from. Obligations without a verified source are 
 not in this feed\; the web page lists them as unsupported. A reminder only
 : confirm with the source before filing.
REFRESH-INTERVAL;VALUE=DURATION:P1D
X-PUBLISHED-TTL:P1D
BEGIN:VEVENT
UID:ia:IA-sales:2026-01-01:0:annual@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270201
DTEND;VALUE=DATE:20270202
SUMMARY:Iowa: Sales and use tax return — Annual sales tax return (annual 
 filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Annual sales tax return: January 31 of the year after the calen
 dar year ends\nStated date 2027-01-31\, moved to the next business day.\nH
 oliday rule: Iowa Code §421.9A(2) — https://www.legis.iowa.gov/docs/cod
 e/2026/421.9A.pdf (retrieved 2026-09-24)\nHoliday rule: Iowa Code §421.9A
 (1)(a)-(b) — https://www.legis.iowa.gov/docs/code/2026/421.9A.pdf (retri
 eved 2026-09-24)\nHoliday rule: U.S. Postal Service\, Holidays & events: 2
 026 holidays — https://about.usps.com/newsroom/events/ (retrieved 2026-0
 9-24)\nHoliday rule: Federal Reserve Board\, K.8 Holidays Observed by the 
 Federal Reserve System 2026-2030 — https://www.federalreserve.gov/aboutt
 hefed/k8.htm (retrieved 2026-09-24)\nState legal holidays are not compiled
 : if this date is a state holiday\, the deadline moves to the next busines
 s day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxe
 s/filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder onl
 y: confirm with the source before filing. You file\; this calendar reminds
 .
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Annual sales tax return (ann
 ual filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Annual sales tax return (ann
 ual filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2026-12-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270201
DTEND;VALUE=DATE:20270202
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nStated date 2027-01-31\, moved to the next business day.\nHoliday r
 ule: Iowa Code §421.9A(2) — https://www.legis.iowa.gov/docs/code/2026/4
 21.9A.pdf (retrieved 2026-09-24)\nHoliday rule: Iowa Code §421.9A(1)(a)-(
 b) — https://www.legis.iowa.gov/docs/code/2026/421.9A.pdf (retrieved 202
 6-09-24)\nHoliday rule: U.S. Postal Service\, Holidays & events: 2026 holi
 days — https://about.usps.com/newsroom/events/ (retrieved 2026-09-24)\nH
 oliday rule: Federal Reserve Board\, K.8 Holidays Observed by the Federal 
 Reserve System 2026-2030 — https://www.federalreserve.gov/aboutthefed/k8
 .htm (retrieved 2026-09-24)\nState legal holidays are not compiled: if thi
 s date is a state holiday\, the deadline moves to the next business day.\n
 Source: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing
 -frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only: confi
 rm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2026-10-01:0:quarterly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270201
DTEND;VALUE=DATE:20270202
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly withh
 olding return (quarterly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: Quarterly withho
 lding return: last day of the month after the quarter ends\nStated date 20
 27-01-31\, moved to the next business day.\nState legal holidays are not c
 ompiled: if this date is a state holiday\, the deadline moves to the next 
 business day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/busine
 ss-taxes/filing-frequency-return-due-dates (retrieved 2026-09-23)\nA remin
 der only: confirm with the source before filing. You file\; this calendar 
 reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2026-10-01:2:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270201
DTEND;VALUE=DATE:20270202
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly retur
 n and balance (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nStated date 2027-01-31\, moved to the 
 next business day.\nState legal holidays are not compiled: if this date is
  a state holiday\, the deadline moves to the next business day.\nSource: h
 ttps://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequenc
 y-return-due-dates (retrieved 2026-09-23)\nA reminder only: confirm with t
 he source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-W-2-1099:2026-01-01:0@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270215
DTEND;VALUE=DATE:20270216
SUMMARY:Iowa: W-2 and 1099 electronic filing — W-2 / 1099 filing
DESCRIPTION:Applies to: An employer the preparer attests withholds Iowa inc
 ome tax from wages electronically files its W-2s (and any 1099s) that cont
 ain Iowa withholding by February 15\; with no Iowa withholding\, no filing
  is required. The source also covers a payer whose only Iowa withholding i
 s on 1099s\; the profile has no attestation for that case\, so such a paye
 r is not dated by this line. A due date on a Saturday\, Sunday or Iowa hol
 iday moves to the next day that is none of those.\nDue rule: W-2 / 1099 fi
 ling: February 15 of the year after the calendar year ends\nState legal ho
 lidays are not compiled: if this date is a state holiday\, the deadline mo
 ves to the next business day.\nSource: https://revenue.iowa.gov/taxes/file
 -my-taxes/business-taxes/filing-frequency-return-due-dates (retrieved 2026
 -09-23)\nA reminder only: confirm with the source before filing. You file\
 ; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: W-2 and 1099 electronic filing — W-2 / 1099 filing
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: W-2 and 1099 electronic filing — W-2 / 1099 filing
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-01-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270215
DTEND;VALUE=DATE:20270216
SUMMARY:Iowa: Withholding payments and quarterly return — 1st-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-01-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270301
DTEND;VALUE=DATE:20270302
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nStated date 2027-02-28\, moved to the next business day.\nHoliday r
 ule: Iowa Code §421.9A(2) — https://www.legis.iowa.gov/docs/code/2026/4
 21.9A.pdf (retrieved 2026-09-24)\nHoliday rule: Iowa Code §421.9A(1)(a)-(
 b) — https://www.legis.iowa.gov/docs/code/2026/421.9A.pdf (retrieved 202
 6-09-24)\nHoliday rule: U.S. Postal Service\, Holidays & events: 2026 holi
 days — https://about.usps.com/newsroom/events/ (retrieved 2026-09-24)\nH
 oliday rule: Federal Reserve Board\, K.8 Holidays Observed by the Federal 
 Reserve System 2026-2030 — https://www.federalreserve.gov/aboutthefed/k8
 .htm (retrieved 2026-09-24)\nState legal holidays are not compiled: if thi
 s date is a state holiday\, the deadline moves to the next business day.\n
 Source: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing
 -frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only: confi
 rm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-01-01:1:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270315
DTEND;VALUE=DATE:20270316
SUMMARY:Iowa: Withholding payments and quarterly return — 2nd-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-02-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270331
DTEND;VALUE=DATE:20270401
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-business-estimates:2027-01-01:0@filingdates.com
DTSTAMP:20260923T000000Z
DTSTART;VALUE=DATE:20270430
DTEND;VALUE=DATE:20270501
SUMMARY:Iowa: Business estimated income tax — 1st installment (calendar-y
 ear S corporation\, C corporation or partnership)
DESCRIPTION:Applies to: A C corporation (or an S corporation or partnership
  subject to Iowa PTET) expecting $1\,000 or more of Iowa income tax pays f
 our installments by the last day of the 4th\, 6th\, 9th and 12th months af
 ter its tax year begins (April 30\, June 30\, September 30\, December 31 f
 or calendar-year filers).\nDue rule: 1st installment: last day of the 4th 
 month of the tax year\; 2nd installment: last day of the 6th month of the 
 tax year\; 3rd installment: last day of the 9th month of the tax year\; 4t
 h installment: last day of the 12th month of the tax year\nSource: https:/
 /revenue.iowa.gov/taxes/tax-guidance/business-income-tax/estimated-income-
 tax-payments-business-entities (retrieved 2026-09-23)\nA reminder only: co
 nfirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/tax-guidance/business-income-t
 ax/estimated-income-tax-payments-business-entities
CATEGORIES:Iowa,estimated-tax
SEQUENCE:0
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 1st installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 1st installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-03-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270430
DTEND;VALUE=DATE:20270501
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-01-01:0:quarterly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270430
DTEND;VALUE=DATE:20270501
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly withh
 olding return (quarterly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: Quarterly withho
 lding return: last day of the month after the quarter ends\nState legal ho
 lidays are not compiled: if this date is a state holiday\, the deadline mo
 ves to the next business day.\nSource: https://revenue.iowa.gov/taxes/file
 -my-taxes/business-taxes/filing-frequency-return-due-dates (retrieved 2026
 -09-23)\nA reminder only: confirm with the source before filing. You file\
 ; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-01-01:2:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270430
DTEND;VALUE=DATE:20270501
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly retur
 n and balance (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-04-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270517
DTEND;VALUE=DATE:20270518
SUMMARY:Iowa: Withholding payments and quarterly return — 1st-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nStated date 2027-05-15\, moved to the 
 next business day.\nState legal holidays are not compiled: if this date is
  a state holiday\, the deadline moves to the next business day.\nSource: h
 ttps://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequenc
 y-return-due-dates (retrieved 2026-09-23)\nA reminder only: confirm with t
 he source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-04-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270531
DTEND;VALUE=DATE:20270601
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-04-01:1:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270615
DTEND;VALUE=DATE:20270616
SUMMARY:Iowa: Withholding payments and quarterly return — 2nd-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-business-estimates:2027-01-01:1@filingdates.com
DTSTAMP:20260923T000000Z
DTSTART;VALUE=DATE:20270630
DTEND;VALUE=DATE:20270701
SUMMARY:Iowa: Business estimated income tax — 2nd installment (calendar-y
 ear S corporation\, C corporation or partnership)
DESCRIPTION:Applies to: A C corporation (or an S corporation or partnership
  subject to Iowa PTET) expecting $1\,000 or more of Iowa income tax pays f
 our installments by the last day of the 4th\, 6th\, 9th and 12th months af
 ter its tax year begins (April 30\, June 30\, September 30\, December 31 f
 or calendar-year filers).\nDue rule: 1st installment: last day of the 4th 
 month of the tax year\; 2nd installment: last day of the 6th month of the 
 tax year\; 3rd installment: last day of the 9th month of the tax year\; 4t
 h installment: last day of the 12th month of the tax year\nSource: https:/
 /revenue.iowa.gov/taxes/tax-guidance/business-income-tax/estimated-income-
 tax-payments-business-entities (retrieved 2026-09-23)\nA reminder only: co
 nfirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/tax-guidance/business-income-t
 ax/estimated-income-tax-payments-business-entities
CATEGORIES:Iowa,estimated-tax
SEQUENCE:0
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 2nd installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 2nd installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-05-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270630
DTEND;VALUE=DATE:20270701
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-06-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270802
DTEND;VALUE=DATE:20270803
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nStated date 2027-07-31\, moved to the next business day.\nHoliday r
 ule: Iowa Code §421.9A(2) — https://www.legis.iowa.gov/docs/code/2026/4
 21.9A.pdf (retrieved 2026-09-24)\nHoliday rule: Iowa Code §421.9A(1)(a)-(
 b) — https://www.legis.iowa.gov/docs/code/2026/421.9A.pdf (retrieved 202
 6-09-24)\nHoliday rule: U.S. Postal Service\, Holidays & events: 2026 holi
 days — https://about.usps.com/newsroom/events/ (retrieved 2026-09-24)\nH
 oliday rule: Federal Reserve Board\, K.8 Holidays Observed by the Federal 
 Reserve System 2026-2030 — https://www.federalreserve.gov/aboutthefed/k8
 .htm (retrieved 2026-09-24)\nState legal holidays are not compiled: if thi
 s date is a state holiday\, the deadline moves to the next business day.\n
 Source: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing
 -frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only: confi
 rm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-04-01:0:quarterly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270802
DTEND;VALUE=DATE:20270803
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly withh
 olding return (quarterly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: Quarterly withho
 lding return: last day of the month after the quarter ends\nStated date 20
 27-07-31\, moved to the next business day.\nState legal holidays are not c
 ompiled: if this date is a state holiday\, the deadline moves to the next 
 business day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/busine
 ss-taxes/filing-frequency-return-due-dates (retrieved 2026-09-23)\nA remin
 der only: confirm with the source before filing. You file\; this calendar 
 reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-04-01:2:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270802
DTEND;VALUE=DATE:20270803
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly retur
 n and balance (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nStated date 2027-07-31\, moved to the 
 next business day.\nState legal holidays are not compiled: if this date is
  a state holiday\, the deadline moves to the next business day.\nSource: h
 ttps://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequenc
 y-return-due-dates (retrieved 2026-09-23)\nA reminder only: confirm with t
 he source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-07-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270816
DTEND;VALUE=DATE:20270817
SUMMARY:Iowa: Withholding payments and quarterly return — 1st-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nStated date 2027-08-15\, moved to the 
 next business day.\nState legal holidays are not compiled: if this date is
  a state holiday\, the deadline moves to the next business day.\nSource: h
 ttps://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequenc
 y-return-due-dates (retrieved 2026-09-23)\nA reminder only: confirm with t
 he source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-07-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270831
DTEND;VALUE=DATE:20270901
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-07-01:1:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270915
DTEND;VALUE=DATE:20270916
SUMMARY:Iowa: Withholding payments and quarterly return — 2nd-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-business-estimates:2027-01-01:2@filingdates.com
DTSTAMP:20260923T000000Z
DTSTART;VALUE=DATE:20270930
DTEND;VALUE=DATE:20271001
SUMMARY:Iowa: Business estimated income tax — 3rd installment (calendar-y
 ear S corporation\, C corporation or partnership)
DESCRIPTION:Applies to: A C corporation (or an S corporation or partnership
  subject to Iowa PTET) expecting $1\,000 or more of Iowa income tax pays f
 our installments by the last day of the 4th\, 6th\, 9th and 12th months af
 ter its tax year begins (April 30\, June 30\, September 30\, December 31 f
 or calendar-year filers).\nDue rule: 1st installment: last day of the 4th 
 month of the tax year\; 2nd installment: last day of the 6th month of the 
 tax year\; 3rd installment: last day of the 9th month of the tax year\; 4t
 h installment: last day of the 12th month of the tax year\nSource: https:/
 /revenue.iowa.gov/taxes/tax-guidance/business-income-tax/estimated-income-
 tax-payments-business-entities (retrieved 2026-09-23)\nA reminder only: co
 nfirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/tax-guidance/business-income-t
 ax/estimated-income-tax-payments-business-entities
CATEGORIES:Iowa,estimated-tax
SEQUENCE:0
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 3rd installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 3rd installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-08-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20270930
DTEND;VALUE=DATE:20271001
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-09-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271101
DTEND;VALUE=DATE:20271102
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nStated date 2027-10-31\, moved to the next business day.\nHoliday r
 ule: Iowa Code §421.9A(2) — https://www.legis.iowa.gov/docs/code/2026/4
 21.9A.pdf (retrieved 2026-09-24)\nHoliday rule: Iowa Code §421.9A(1)(a)-(
 b) — https://www.legis.iowa.gov/docs/code/2026/421.9A.pdf (retrieved 202
 6-09-24)\nHoliday rule: U.S. Postal Service\, Holidays & events: 2026 holi
 days — https://about.usps.com/newsroom/events/ (retrieved 2026-09-24)\nH
 oliday rule: Federal Reserve Board\, K.8 Holidays Observed by the Federal 
 Reserve System 2026-2030 — https://www.federalreserve.gov/aboutthefed/k8
 .htm (retrieved 2026-09-24)\nState legal holidays are not compiled: if thi
 s date is a state holiday\, the deadline moves to the next business day.\n
 Source: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing
 -frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only: confi
 rm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-07-01:0:quarterly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271101
DTEND;VALUE=DATE:20271102
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly withh
 olding return (quarterly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: Quarterly withho
 lding return: last day of the month after the quarter ends\nStated date 20
 27-10-31\, moved to the next business day.\nState legal holidays are not c
 ompiled: if this date is a state holiday\, the deadline moves to the next 
 business day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/busine
 ss-taxes/filing-frequency-return-due-dates (retrieved 2026-09-23)\nA remin
 der only: confirm with the source before filing. You file\; this calendar 
 reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly w
 ithholding return (quarterly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-07-01:2:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271101
DTEND;VALUE=DATE:20271102
SUMMARY:Iowa: Withholding payments and quarterly return — Quarterly retur
 n and balance (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nStated date 2027-10-31\, moved to the 
 next business day.\nState legal holidays are not compiled: if this date is
  a state holiday\, the deadline moves to the next business day.\nSource: h
 ttps://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequenc
 y-return-due-dates (retrieved 2026-09-23)\nA reminder only: confirm with t
 he source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — Quarterly r
 eturn and balance (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-10-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271115
DTEND;VALUE=DATE:20271116
SUMMARY:Iowa: Withholding payments and quarterly return — 1st-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 1st-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-10-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271130
DTEND;VALUE=DATE:20271201
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-withholding:2027-10-01:1:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271215
DTEND;VALUE=DATE:20271216
SUMMARY:Iowa: Withholding payments and quarterly return — 2nd-month payme
 nt (monthly withholding filer)
DESCRIPTION:Applies to: Quarterly filers (under $6\,000 a year) file the re
 turn and pay by the last day of the month after each quarter. Monthly file
 rs ($6\,000 to $120\,000) pay the first two months of each quarter by the 
 15th of the next month and file the quarterly return with the balance by t
 he last day of the month after the quarter. Semimonthly filers (over $120\
 ,000) are not dated here. A due date on a Saturday\, Sunday or Iowa holida
 y moves to the next day that is none of those.\nDue rule: 1st-month paymen
 t: 15th day of the 2nd month of the quarter\; 2nd-month payment: 15th day 
 of the 3rd month of the quarter\; Quarterly return and balance: last day o
 f the month after the quarter ends\nState legal holidays are not compiled:
  if this date is a state holiday\, the deadline moves to the next business
  day.\nSource: https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes
 /filing-frequency-return-due-dates (retrieved 2026-09-23)\nA reminder only
 : confirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,withholding
SEQUENCE:2
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Withholding payments and quarterly return — 2nd-month p
 ayment (monthly withholding filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-business-estimates:2027-01-01:3@filingdates.com
DTSTAMP:20260923T000000Z
DTSTART;VALUE=DATE:20271231
DTEND;VALUE=DATE:20280101
SUMMARY:Iowa: Business estimated income tax — 4th installment (calendar-y
 ear S corporation\, C corporation or partnership)
DESCRIPTION:Applies to: A C corporation (or an S corporation or partnership
  subject to Iowa PTET) expecting $1\,000 or more of Iowa income tax pays f
 our installments by the last day of the 4th\, 6th\, 9th and 12th months af
 ter its tax year begins (April 30\, June 30\, September 30\, December 31 f
 or calendar-year filers).\nDue rule: 1st installment: last day of the 4th 
 month of the tax year\; 2nd installment: last day of the 6th month of the 
 tax year\; 3rd installment: last day of the 9th month of the tax year\; 4t
 h installment: last day of the 12th month of the tax year\nSource: https:/
 /revenue.iowa.gov/taxes/tax-guidance/business-income-tax/estimated-income-
 tax-payments-business-entities (retrieved 2026-09-23)\nA reminder only: co
 nfirm with the source before filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/tax-guidance/business-income-t
 ax/estimated-income-tax-payments-business-entities
CATEGORIES:Iowa,estimated-tax
SEQUENCE:0
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 4th installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Business estimated income tax — 4th installment (calend
 ar-year S corporation\, C corporation or partnership)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ia:IA-sales:2027-11-01:0:monthly@filingdates.com
DTSTAMP:20260926T000000Z
DTSTART;VALUE=DATE:20271231
DTEND;VALUE=DATE:20280101
SUMMARY:Iowa: Sales and use tax return — Monthly sales tax return (monthl
 y filer)
DESCRIPTION:Applies to: Annual filers (under $1\,200 of tax a year) file on
 e return by January 31 after the calendar year\; monthly filers ($1\,200 o
 r more) file by the last day of the following month. A due date on a Satur
 day\, Sunday or Iowa holiday moves to the next day that is none of those.\
 nDue rule: Monthly sales tax return: last day of the month after the month
  ends\nState legal holidays are not compiled: if this date is a state holi
 day\, the deadline moves to the next business day.\nSource: https://revenu
 e.iowa.gov/taxes/file-my-taxes/business-taxes/filing-frequency-return-due-
 dates (retrieved 2026-09-23)\nA reminder only: confirm with the source bef
 ore filing. You file\; this calendar reminds.
URL;VALUE=URI:https://revenue.iowa.gov/taxes/file-my-taxes/business-taxes/f
 iling-frequency-return-due-dates
CATEGORIES:Iowa,sales-tax
SEQUENCE:1
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-P6DT15H
END:VALARM
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Iowa: Sales and use tax return — Monthly sales tax return (mo
 nthly filer)
TRIGGER:-PT15H
END:VALARM
END:VEVENT
END:VCALENDAR