Pacific · HI
How to file Hawaii sales tax
2026 due dates, filing frequencies, form G-45, and official filing resources.
- State return: G-45
- Monthly returns due: 20th of the following month (Form G-45)
- Filing frequencies: Monthly, Quarterly, Semi-annual, Annual
When is Hawaii sales tax due?
Monthly Hawaii sales tax returns are due the 20th of the following month (Form G-45). Quarterly returns are due the 20th of the month following the period (calendar quarters, Form G-45). When a due date lands on a weekend or federal holiday it moves to the next business day; the 2026 calendar on this page already applies that adjustment.
Hawaii sales tax due dates for 2026
Every date below comes from the state's published deadline rule (dataset 2026.07.0) and is already moved to the next business day when it lands on a weekend or federal holiday. Your account's assigned filing frequency decides which table applies.
Monthly Hawaii sales tax due dates
Rule: 20th of the following month (Form G-45).
| Period | Period ends | Return due |
|---|---|---|
| January 2026 | Jan 31, 2026 | Feb 20, 2026 |
| February 2026 | Feb 28, 2026 | Mar 20, 2026 |
| March 2026 | Mar 31, 2026 | Apr 20, 2026 |
| April 2026 | Apr 30, 2026 | May 20, 2026 |
| May 2026 | May 31, 2026 | Jun 22, 2026 (moved: 2026-06-20 falls on a Saturday) |
| June 2026 | Jun 30, 2026 | Jul 20, 2026 |
| July 2026 | Jul 31, 2026 | Aug 20, 2026 |
| August 2026 | Aug 31, 2026 | Sep 21, 2026 (moved: 2026-09-20 falls on a Sunday) |
| September 2026 | Sep 30, 2026 | Oct 20, 2026 |
| October 2026 | Oct 31, 2026 | Nov 20, 2026 |
| November 2026 | Nov 30, 2026 | Dec 21, 2026 (moved: 2026-12-20 falls on a Sunday) |
| December 2026 | Dec 31, 2026 | Jan 20, 2027 |
Quarterly Hawaii sales tax due dates
Rule: 20th of the month following the period (calendar quarters, Form G-45).
| Period | Period ends | Return due |
|---|---|---|
| Q1 2026 | Mar 31, 2026 | Apr 20, 2026 |
| Q2 2026 | Jun 30, 2026 | Jul 20, 2026 |
| Q3 2026 | Sep 30, 2026 | Oct 20, 2026 |
| Q4 2026 | Dec 31, 2026 | Jan 20, 2027 |
Semi-annual Hawaii sales tax due dates
Rule: 20th of the month following the period (halves: due Jul 20 / Jan 20, Form G-45).
| Period | Period ends | Return due |
|---|---|---|
| January–June 2026 | Jun 30, 2026 | Jul 20, 2026 |
| July–December 2026 | Dec 31, 2026 | Jan 20, 2027 |
Annual Hawaii sales tax due dates
Rule: April 20 following the calendar year (Form G-49 annual return). This cadence is flagged for manual review against the state source before relying on it.
| Period | Period ends | Return due |
|---|---|---|
| Calendar year 2026 | Dec 31, 2026 | Apr 20, 2027 |
- Hawaii's G-49 is due the 20th of the 4th month after the taxpayer's fiscal year end — April 20 assumes a calendar-year taxpayer; verify.
Hawaii filing notes
- Hawaii levies GET (not sales tax); use tax is reported on the same G-45/G-49 forms.
- ALL Hawaii filers also owe an annual G-49 reconciliation return (due the 20th of the 4th month after year end) in addition to periodic G-45s.
Return and form
The principal repository-tracked return is G-45. A paper channel exists, but the current form version and account eligibility still require confirmation.
Tracked form version: Rev. 2025 (use for taxable periods beginning on or after January 1, 2026)
Paper filing posture: accepted
Official Hawaii filing resources
- Due-date rule source — accessed July 2, 2026
- https://tax.hawaii.gov/geninfo/get/
- https://tax.hawaii.gov/geninfo/countysurcharge/
- https://files.hawaii.gov/tax/forms/current/g45_f.pdf
- https://files.hawaii.gov/tax/forms/current/g75_f.pdf
- https://files.hawaii.gov/tax/eservices/ebiz/25pubef14_GE-TAT-WH_Simple_File_Import_Nov2025.pdf
- https://files.hawaii.gov/tax/eservices/ebiz/ef20_i.pdf
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Workflow support does not by itself establish registration, filing authority, credentials, agency acceptance, or tax advice. Confirm your assigned filing frequency with the state.
Hawaii sales tax filing questions
When is Hawaii sales tax due?
Monthly Hawaii sales tax returns are due the 20th of the following month (Form G-45). Quarterly returns are due the 20th of the month following the period (calendar quarters, Form G-45). When a due date lands on a weekend or federal holiday it moves to the next business day; the 2026 calendar on this page already applies that adjustment.
How often do you file sales tax in Hawaii?
Hawaii assigns a filing frequency to each account. The published cadences are monthly, quarterly, semi-annual and annual filing; the state assigns the frequency based on tax volume and notifies the account, so confirm the assigned basis before relying on a calendar.
What form is used to file Hawaii sales tax?
The Hawaii return tracked here is G-45. The principal repository-tracked return is G-45. A paper channel exists, but the current form version and account eligibility still require confirmation.
What happens if a Hawaii due date falls on a weekend or holiday?
The due date moves to the next business day. In 2026, 3 of the Hawaii due dates listed on this page are adjusted for a weekend or federal holiday; each adjusted date is marked in the calendar.
Can Hawaii sales tax be filed on paper?
Paper filing posture tracked for Hawaii: accepted. The principal repository-tracked return is G-45. A paper channel exists, but the current form version and account eligibility still require confirmation.