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New York State Sales Tax Guide
New York sales & use tax

NYS PrompTax due dates, 2026 and 2027

If you are in PrompTax your sales tax is not due 20 days after the quarter. It is due three business days after the 22nd of every month — a clock nobody else in New York is on.

In PrompTax? Your dates are different →

Looking ahead? Every 2027 deadline →

Reviewed against published state sources on August 21, 2026. Rules and figures change — always confirm with the agency before acting.

Ready to file? Returns are filed with the New York State Department of Taxation and Finance, never through this site.Log in to Online Services →Opens ols.tax.ny.gov, the Department's Tax Online Services Portal — the shortest route to Sales Tax Web File, which is otherwise several clicks deep. Sign in with your NY.gov ID; Web File itself cannot be bookmarked and is only reachable once you are logged in. New vendors can create a Tax Online Services account from the same page.
This page is for large vendors only.

PrompTax is mandatory where your sales and compensating use tax liability was more than $500,000 in the June 1 to May 31 period immediately preceding the previous June 1 to May 31 — a two-year lookback, so the year being measured is further back than most people assume. The Tax Department writes to you if you are required to join. Not enrolling when you are mandated risks a $5,000 penalty, plus $500 for each additional month or part of a month.

If none of that applies to you, your deadlines are on the ordinary due dates page and nothing here is relevant.

The rule

The Department puts it in one sentence: the filing and tax payment due date is three business days following the 22nd of the month you are reporting. If that lands on a Saturday, Sunday or legal holiday it moves to the next business day — though counting in business days means it rarely has to.

Each payment covers two part-months

This is the part that catches people, because the period is not a month. Each payment carries the tax due for days 23 to the end of the previous month, plus the tax due for days 1 to 22 of the current month. So a payment is a 23rd-to-22nd window, not a calendar month, and the two halves sit in different months.

You still file quarterly

PrompTax is a payment programme, not a filing one. You still file Form ST-810 through Sales Tax Web File each quarter to reconcile what you have already paid. The quarterly deadlines are unchanged, and the 2027 calendar lists them.

Put them in your calendar

Every PrompTax payment date for 2026 and 2027, with a reminder two days before each one. Download the calendar (.ics) — it opens in Google Calendar, Outlook and Apple Calendar.

2026

Reporting monthPayment dueCovers
January 2026Tuesday, January 27, 202623–31 December, plus 1–22 January
February 2026Wednesday, February 25, 202623–31 January, plus 1–22 February
March 2026Wednesday, March 25, 202623–28 February, plus 1–22 March
April 2026Monday, April 27, 202623–31 March, plus 1–22 April
May 2026Thursday, May 28, 202623–30 April, plus 1–22 May
June 2026Thursday, June 25, 202623–31 May, plus 1–22 June
July 2026Monday, July 27, 202623–30 June, plus 1–22 July
August 2026Wednesday, August 26, 202623–31 July, plus 1–22 August
September 2026Friday, September 25, 202623–31 August, plus 1–22 September
October 2026Tuesday, October 27, 202623–30 September, plus 1–22 October
November 2026Wednesday, November 25, 202623–31 October, plus 1–22 November
December 2026Monday, December 28, 202623–30 November, plus 1–22 December

2027

Reporting monthPayment dueCovers
January 2027Wednesday, January 27, 202723–31 December, plus 1–22 January
February 2027Thursday, February 25, 202723–31 January, plus 1–22 February
March 2027Thursday, March 25, 202723–28 February, plus 1–22 March
April 2027Tuesday, April 27, 202723–31 March, plus 1–22 April
May 2027Wednesday, May 26, 202723–30 April, plus 1–22 May
June 2027Friday, June 25, 202723–31 May, plus 1–22 June
July 2027Tuesday, July 27, 202723–30 June, plus 1–22 July
August 2027Wednesday, August 25, 202723–31 July, plus 1–22 August
September 2027Monday, September 27, 202723–31 August, plus 1–22 September
October 2027Wednesday, October 27, 202723–30 September, plus 1–22 October
November 2027Friday, November 26, 202723–31 October, plus 1–22 November
December 2027Tuesday, December 28, 202723–30 November, plus 1–22 December

Estimated or actual

PrompTax participants may pay on an actual basis, remitting what was really collected in the period, or on an estimated basis worked out from the prior year. The choice changes what you owe on each of the dates above but not when they fall. Check the current rules with the Department before switching method — this is a reference page, not advice.

Where these dates come from

They are computed from the Department's own rule and the federal holiday calendar, not copied from a PDF. A state legal holiday that is not a federal one can still move a date, so confirm against the Department before you rely on one.