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Deadlines · September 2026 to December 2027

The recurring filing deadlines for a Hawaiʻi small business, on one page.

GET on the 20th. State withholding on the 15th. Federal payroll on the last day of the month after each quarter. Kauaʻi property tax on August 20 and February 20. This calendar puts each date in order, with the agency it belongs to and the page it was read from. Print it, pin it above the desk, and check the agency page before you file.

Get the printed calendar (PDF)Questions? Call (808) 353-4408
Month by month

Sixteen months, in order.

Tick the groups that apply to you and the calendar hides the rest. Colors mark who a date belongs to, and the day of the week sits under each date. Each date is shown as the agency writes it. Where the agency moves a weekend or holiday due date to the next business day, the entry says so.

Show dates for

September 2026

15Tue
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
  • Federal estimated tax 1040-ESIRS · or the next business day
20Sun
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • Hawaiʻi estimated tax N-200VHawaiʻi Dept. of Taxation · or the next business day
30Wed
  • Kauaʻi exemption claimsCounty of Kauaʻi Finance

October 2026

15Thu
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • State withholding return HW-14Hawaiʻi Dept. of Taxation · or the next business day
20Tue
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, quarterly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • Kauaʻi county TAT, quarterly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, quarterly filersHawaiʻi Dept. of Taxation
31Sat
  • Federal payroll return 941IRS · or the next business day

November 2026

15Sun
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
20Fri
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation

December 2026

1Tue
  • Kauaʻi assessment notices mailedCounty of Kauaʻi Finance
15Tue
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
20Sun
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
31Thu
  • Kauaʻi assessment appealsCounty of Kauaʻi Finance

January 2027

15Fri
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • State withholding return HW-14Hawaiʻi Dept. of Taxation · or the next business day
  • Federal estimated tax 1040-ESIRS · or the next business day
20Wed
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, quarterly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, semiannual filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • Kauaʻi county TAT, quarterly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, quarterly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, semiannual filersHawaiʻi Dept. of Taxation
  • Hawaiʻi estimated tax N-200VHawaiʻi Dept. of Taxation · or the next business day
31Sun
  • 1099-NEC to the IRSIRS · or the next business day
  • Federal payroll return 941IRS · or the next business day
  • Federal unemployment return 940IRS · or the next business day
  • HW-2 to employees, HW-30 to the StateHawaiʻi Dept. of Taxation · or the next business day

February 2027

1Mon
  • Federal W-2s to employees and SSAIRS and SSA
15Mon
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
20Sat
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • Kauaʻi property tax, second halfCounty of Kauaʻi Finance
28Sun
  • 1099-MISC to the IRS, paperIRS · or the next business day
  • State 1099 transmittal N-196Hawaiʻi Dept. of Taxation · or the next business day

March 2027

15Mon
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Partnership 1065 and S corp 1120-S returnsIRS · or the next business day
20Sat
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
31Wed
  • 1099-MISC to the IRS, electronicIRS · or the next business day

April 2027

15Thu
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • State withholding return HW-14Hawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
  • Corporate return 1120IRS · or the next business day
  • Federal estimated tax 1040-ESIRS · or the next business day
  • Federal income tax return 1040IRS · or the next business day
20Tue
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, quarterly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET annual return G-49Hawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT annual reconciliationCounty of Kauaʻi Finance
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • Kauaʻi county TAT, quarterly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, quarterly filersHawaiʻi Dept. of Taxation
  • TAT annual return TA-2Hawaiʻi Dept. of Taxation · or the next business day
  • Hawaiʻi income tax return N-11Hawaiʻi Dept. of Taxation · or the next business day
30Fri
  • Federal payroll return 941IRS · or the next business day

May 2027

15Sat
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
20Thu
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation

June 2027

15Tue
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
  • Federal estimated tax 1040-ESIRS · or the next business day
20Sun
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation

July 2027

15Thu
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • State withholding return HW-14Hawaiʻi Dept. of Taxation · or the next business day
20Tue
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, quarterly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, semiannual filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • Kauaʻi county TAT, quarterly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, quarterly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, semiannual filersHawaiʻi Dept. of Taxation
31Sat
  • Federal payroll return 941IRS · or the next business day

August 2027

15Sun
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
20Fri
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • Kauaʻi property tax, first halfCounty of Kauaʻi Finance

September 2027

15Wed
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
  • Federal estimated tax 1040-ESIRS · or the next business day
20Mon
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
30Thu
  • Kauaʻi exemption claimsCounty of Kauaʻi Finance

October 2027

15Fri
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • State withholding return HW-14Hawaiʻi Dept. of Taxation · or the next business day
20Wed
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • GET G-45, quarterly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • Kauaʻi county TAT, quarterly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
  • TAT TA-1, quarterly filersHawaiʻi Dept. of Taxation
31Sun
  • Federal payroll return 941IRS · or the next business day

November 2027

15Mon
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
20Sat
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation

December 2027

1Wed
  • Kauaʻi assessment notices mailedCounty of Kauaʻi Finance
15Wed
  • State withholding payment VP-1, monthly payersHawaiʻi Dept. of Taxation · or the next business day
  • Corporate estimated taxIRS · or the next business day
20Mon
  • GET G-45, monthly filersHawaiʻi Dept. of Taxation · or the next business day
  • Kauaʻi county TAT, monthly filersCounty of Kauaʻi Finance
  • TAT TA-1, monthly filersHawaiʻi Dept. of Taxation
31Fri
  • Kauaʻi assessment appealsCounty of Kauaʻi Finance
Every businessEmployersShort-term rentalsKauaʻi propertyEntitiesIndividual income tax
The printed calendar

Take the calendar with you.

One PDF: every date above, in order, with the agency and the source page for each. Enter your email and the download opens on the next page. The Tuesday Brief follows with rule changes as they happen.

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What each one is

Each deadline, in plain words, with its source.

Every date on this page was read from the agency's own instructions on the date shown. Rules change. Before you file, open the source and confirm the current figure.

FilingWhat it isWhenAgency and source
GET periodic return, monthly filers (Form G-45)Every businessThe general excise tax return for the month just ended. You must file monthly if you will pay more than $4,000 in GET a year. A return is due even for a period with no income.20th day of the month after the period endsor the next business dayHawaiʻi Dept. of Taxation
Form G-45 and G-49 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
GET periodic return, quarterly filers (Form G-45)Every businessThe general excise tax return for the quarter just ended. You may file quarterly if you will pay $4,000 or less in GET a year.20th day of the month after the quarter endsor the next business dayHawaiʻi Dept. of Taxation
Form G-45 and G-49 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
GET periodic return, semiannual filers (Form G-45)Every businessThe general excise tax return for the half year just ended. You may file semiannually if you will pay $2,000 or less in GET a year. The periods run January to June and July to December.20th day of the month after the half year endsor the next business dayHawaiʻi Dept. of Taxation
Form G-45 and G-49 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
GET annual return and reconciliation (Form G-49)Every businessThe annual return that reconciles your periodic G-45 returns for the tax year.20th day of the fourth month after the tax year ends; April 20 for calendar-year filersor the next business dayHawaiʻi Dept. of Taxation
Form G-45 and G-49 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
TAT periodic return, monthly filers (Form TA-1)Short-term rentals and lodgingThe transient accommodations tax return for the month just ended, due with payment. You must file monthly if you will pay more than $4,000 in TAT a year.20th day of the month after the period endsHawaiʻi Dept. of Taxation
Form TA-1 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
TAT periodic return, quarterly filers (Form TA-1)Short-term rentals and lodgingThe transient accommodations tax return for the quarter just ended, due with payment. You may file quarterly if you will pay $4,000 or less in TAT a year.20th day of the month after the quarter endsHawaiʻi Dept. of Taxation
Form TA-1 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
TAT periodic return, semiannual filers (Form TA-1)Short-term rentals and lodgingThe transient accommodations tax return for the half year just ended, due with payment. You may file semiannually if you will pay $2,000 or less in TAT a year. The periods run January to June and July to December.20th day of the month after the half year endsHawaiʻi Dept. of Taxation
Form TA-1 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
TAT annual return and reconciliation (Form TA-2)Short-term rentals and lodgingThe annual return that summarizes your TAT activity for the year. It must be filed even if you had no rental income for the whole year.20th day of the fourth month after the tax year ends; April 20 for calendar-year filersor the next business dayHawaiʻi Dept. of Taxation
Form TA-2 instructions, Hawaiʻi Department of Taxation
read 2026-09-14
Kauaʻi county TAT payment, monthly filersShort-term rentals and lodgingThe County of Kauaʻi transient accommodations tax, at 3 percent. State and county TAT are paid separately: the county payment goes to the County of Kauaʻi Department of Finance as its own transaction.20th day of the following monthCounty of Kauaʻi Finance
Transient Accommodations Tax, County of Kauaʻi Department of Finance
read 2026-09-14
Kauaʻi county TAT payment, quarterly filersShort-term rentals and lodgingThe same county tax for quarterly filers, paid to the County of Kauaʻi separately from the state payment.20th day following the close of the quarterCounty of Kauaʻi Finance
Transient Accommodations Tax, County of Kauaʻi Department of Finance
read 2026-09-14
Kauaʻi county TAT annual reconciliationShort-term rentals and lodgingThe county annual reconciliation return for the prior calendar year.20th day of the fourth month; April 20County of Kauaʻi Finance
Transient Accommodations Tax, County of Kauaʻi Department of Finance
read 2026-09-14
State withholding return (Form HW-14)EmployersThe return of Hawaiʻi income tax withheld from wages. Every employer files it quarterly, whatever its payment schedule.15th day of the month after the quarter endsor the next business dayHawaiʻi Dept. of Taxation
Booklet A, Employer's Tax Guide (Rev. 2025), Hawaiʻi Department of Taxation
read 2026-09-14
State withholding payment, monthly payers (Form VP-1)EmployersPayment of Hawaiʻi income tax withheld. Monthly if your yearly withholding is over $5,000 and not over $40,000. At $5,000 or less you pay quarterly, by the HW-14 due date. Over $40,000 you pay semiweekly, on the pay-date schedule in Booklet A.15th day of the month after the month endsor the next business dayHawaiʻi Dept. of Taxation
Booklet A, Employer's Tax Guide (Rev. 2025), Hawaiʻi Department of Taxation
read 2026-09-14
State wage statements (Form HW-2) and transmittal (Form HW-30)EmployersGive each employee copies B and C of Form HW-2. File Form HW-30 with the paper wage statements (copy A of Form HW-2 or copy 1 of the federal W-2). Employers who upload wage statements electronically file no HW-30.January 31or the next business dayHawaiʻi Dept. of Taxation
Booklet A, Employer's Tax Guide (Rev. 2025), Hawaiʻi Department of Taxation
read 2026-09-14
State copy of 1099s (Form N-196)Every businessFile transmittal Form N-196 with the federal Forms 1099 you issued. Booklet A also sets January 31 for giving recipients their 1099s.February 28 (February 29 in a leap year)or the next business dayHawaiʻi Dept. of Taxation
Booklet A, Employer's Tax Guide (Rev. 2025), Hawaiʻi Department of Taxation
read 2026-09-14
Hawaiʻi estimated income tax payment (Form N-200V)Individual income taxFor income tax not covered by withholding. The 2025 Form N-11 instructions set four installments: April 20, June 20 and September 20, 2026, and January 20, 2027. The two still ahead are shown.September 20, 2026 and January 20, 2027or the next business dayHawaiʻi Dept. of Taxation
Form N-11 instructions for 2025, Hawaiʻi Department of Taxation
read 2026-09-14
Hawaiʻi individual income tax return (Form N-11)Individual income taxYour state income tax return. The 2025 instructions set April 20, 2026 for calendar-year filers and the 20th day of the fourth month after the year ends for fiscal-year filers. The automatic six-month extension is for filing only, not for payment.20th day of the fourth month after the tax year ends; April 20 for calendar-year filersor the next business dayHawaiʻi Dept. of Taxation
Form N-11 instructions for 2025, Hawaiʻi Department of Taxation
read 2026-09-14
Federal quarterly payroll return (Form 941)EmployersThe employer's quarterly federal tax return. If you deposited all taxes when due, you have 10 more calendar days to file.Last day of the month after the quarter ends: April 30, July 31, October 31, January 31or the next business dayIRS
Employment tax due dates, IRS
read 2026-09-14
Federal unemployment (FUTA) tax return (Form 940)EmployersReports the taxable FUTA wages you paid in the previous year. If you deposited all FUTA tax when due, you have 10 more calendar days to file.January 31or the next business dayIRS
Employment tax due dates, IRS
read 2026-09-14
Federal W-2s to employees and the SSA (Forms W-2 and W-3)EmployersGive each employee Copies B, C and 2 of Form W-2, and file Copy A with Form W-3 at the Social Security Administration. For 2026 forms the IRS sets February 1, 2027 for both, on paper or electronically.February 1, 2027 for 2026 formsIRS and SSA
Instructions for Forms W-2 and W-3, IRS
read 2026-09-14
Form 1099-NEC to the IRSEvery businessReports nonemployee compensation. Due at the IRS by January 31 whether you file on paper or electronically.January 31or the next business dayIRS
Instructions for Forms 1099-MISC and 1099-NEC, IRS
read 2026-09-14
Form 1099-MISC to the IRSEvery businessReports payments other than nonemployee compensation. Recipient statements are due January 31. The IRS copy is due February 28 on paper, or March 31 if filed electronically.February 28 on paper; March 31 electronicallyor the next business dayIRS
Instructions for Forms 1099-MISC and 1099-NEC, IRS
read 2026-09-14
Federal estimated tax payment (Form 1040-ES)Individual income taxDue the 15th day of the 4th, 6th and 9th months of your tax year and the 15th day of the month after it ends.April 15, June 15, September 15, January 15 for calendar-year filersor the next business dayIRS
Publication 509, Tax Calendars, IRS
read 2026-09-14
Individual income tax return (Form 1040)Individual income taxDue the 15th day of the 4th month after the tax year ends.April 15 for calendar-year filersor the next business dayIRS
Publication 509, Tax Calendars, IRS
read 2026-09-14
Partnership and S corporation returns (Forms 1065 and 1120-S)Corporations, LLCs and partnershipsDue the 15th day of the 3rd month after the tax year ends. Schedules K-1 go to partners and shareholders by the same date.March 15 for calendar-year businessesor the next business dayIRS
Publication 509, Tax Calendars, IRS
read 2026-09-14
C corporation return (Form 1120)Corporations, LLCs and partnershipsDue the 15th day of the 4th month after the tax year ends.April 15 for calendar-year corporationsor the next business dayIRS
Publication 509, Tax Calendars, IRS
read 2026-09-14
Corporate estimated tax paymentsCorporations, LLCs and partnershipsDue the 15th day of the 4th, 6th, 9th and 12th months of the corporation's tax year.April 15, June 15, September 15, December 15 for calendar-year corporationsor the next business dayIRS
Publication 509, Tax Calendars, IRS
read 2026-09-14
Kauaʻi real property tax, first halfKauaʻi property ownersThe first-half tax payment. First-half bills are mailed July 20. The county tax year runs July 1 to June 30.August 20County of Kauaʻi Finance
Real Property Assessment, Important Dates, County of Kauaʻi
read 2026-09-14
Kauaʻi real property tax, second halfKauaʻi property ownersThe second-half tax payment. Second-half bills are mailed January 20.February 20County of Kauaʻi Finance
Real Property Assessment, Important Dates, County of Kauaʻi
read 2026-09-14
Kauaʻi exemption claims and ownership documentsKauaʻi property ownersDeadline for filing exemption claims and recording ownership documents.September 30County of Kauaʻi Finance
Real Property Assessment, Important Dates, County of Kauaʻi
read 2026-09-14
Kauaʻi assessment notices mailedKauaʻi property ownersThe county mails assessment notices.December 1County of Kauaʻi Finance
Real Property Assessment, Important Dates, County of Kauaʻi
read 2026-09-14
Kauaʻi assessment appeal deadlineKauaʻi property ownersDeadline for assessment appeals.December 31County of Kauaʻi Finance
Real Property Assessment, Important Dates, County of Kauaʻi
read 2026-09-14
Not on this page

What we left out, and why.

A date goes on this calendar only when it was read on the agency's own page. These did not clear that bar for this edition, so check the agency directly.

Hawaiʻi estimated tax payments for 2027 (Form N-200V)

The 2025 Form N-11 instructions list installments through January 20, 2027. The April, June and September 2027 dates stay off until the Department of Taxation publishes them.

Semiweekly withholding payments

Employers with more than $40,000 a year in Hawaiʻi withholding pay on a schedule tied to pay dates. Booklet A sets it out.

Hawaiʻi corporate, S corporation and partnership returns (Forms N-30, N-35 and N-20)

Not checked for this edition. Check tax.hawaii.gov for the current due dates.

Unemployment insurance quarterly report (Form UC-B6)

The Hawaiʻi DLIR page could not be read for this edition, so the date is not shown. Check labor.hawaii.gov/ui.

DCCA annual business report

The DCCA Business Registration Division page could not be read for this edition, so the date is not shown. Check cca.hawaii.gov/breg.

Workplace injury summary (OSHA Form 300A)

Not checked for this edition. Check osha.gov/recordkeeping.

Other counties

Honolulu, Maui, and Hawaiʻi Island set their own property tax and county TAT dates. Check your county finance department.

License renewals

Professional, contractor, liquor, and health permits renew on their own cycles. Check each license for its date.

Information, not legal, tax, insurance, or financial advice.

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