New York Business Tax Deadlines (2026)
Next: May 15 — Form 990 due for nonprofits; NY Sales Tax quarterly return due May 20
Next Deadline: May 15 — Form 990 due for nonprofits; NY Sales Tax quarterly return due May 20
Federal Tax Deadlines (2026)
| Form | Who Files | Due Date | Extension Deadline |
|---|---|---|---|
| Form 1040 (Schedule C) | Sole proprietors | April 15 | October 15 |
| Form 1065 | Partnerships, Multi-member LLCs | March 15 | September 15 |
| Form 1120-S | S-Corporations | March 15 | September 15 |
| Form 1120 | C-Corporations | April 15 | October 15 |
| Form 990 | Nonprofits | May 15 | November 15 |
| Estimated Taxes (Q1-Q4) | All | Apr 15, Jun 15, Sep 15, Jan 15 2027 | — |
New York State Tax Deadlines (2026)
| Tax Type | Who Files | Due Date | Extension Deadline |
|---|---|---|---|
| Personal Income Tax (IT-201/IT-203) | Individuals, sole proprietors | April 15 | October 15 |
| Estimated Income Tax (Q1-Q4) | Individuals owing $300+ | Apr 15, Jun 15, Sep 15, Jan 15 2027 | — |
| Corporation Franchise Tax (CT-3) | C-Corporations | March 15 (calendar year) | September 15 (6-month extension) |
| S-Corp Return (CT-3-S) | S-Corporations | March 15 | September 15 |
| Partnership Return (IT-204) | Partnerships | March 15 | September 15 |
| Sales & Use Tax | Businesses with taxable sales | Quarterly (Mar 20, Jun 20, Sep 20, Dec 20) or annual | — |
| Payroll — Withholding Tax | Employers | Quarterly (NYS-45) | — |
| Metropolitan Commuter Tax (MCTMT) | Employers in MTA district | Quarterly with withholding | — |
| Biennial Report | LLCs and Corps | Every 2 years (anniversary month) | — |
Quarterly Estimated Tax Deadlines in New York
New York follows the federal estimated tax schedule for individuals:
| Quarter | Due Date |
|---|---|
| Q1 | April 15 |
| Q2 | June 15 |
| Q3 | September 15 |
| Q4 | January 15, 2027 |
Estimated payments are required if you expect to owe $300 or more in NY income tax. Corporations must make estimated franchise tax payments if they expect to owe more than $1,000 — the corporate schedule is: March 15, June 15, September 15, and December 15.
New York-Specific Tax Requirements
New York has some of the highest tax rates in the country. The personal income tax ranges from 4% to 10.9% (the top rate applies to income over $25 million). New York City residents face an additional city income tax of 3.078% to 3.876%, and Yonkers residents pay a 16.75% surcharge on their state tax. Business income for sole proprietors and pass-through entity owners is reported on personal returns. New York also offers a Pass-Through Entity Tax (PTET) election.
The Corporation Franchise Tax is calculated as the highest of four bases: business income base (at 7.25%, or 0.0% for small businesses with income under $390,000), capital base (0.1875%, capped at $5 million), fixed dollar minimum (based on receipts, from $25 to $200,000), or the fixed minimum tax. Note that the corporate franchise tax filing deadline is March 15 — one month earlier than the federal corporate return.
New York imposes a Sales and Use Tax at a state rate of 4%, with local additions bringing combined rates to between 7% and 8.875% (8.875% in NYC). Quarterly sales tax returns are due on the 20th of March, June, September, and December. Employers must also collect and remit the Metropolitan Commuter Transportation Mobility Tax (MCTMT) if they have payroll in the MTA district (NYC and surrounding counties).
What Happens If You Miss a New York Tax Deadline?
New York imposes a late filing penalty of 5% per month of the tax due, up to a maximum of 25%. If the return is more than 60 days late, the minimum penalty is the lesser of $100 or 100% of the tax due. A late payment penalty of 0.5% per month (up to 25%) also applies.
Interest on unpaid taxes is set quarterly by the Tax Department, based on the federal short-term rate plus a margin. For 2026, the rate is approximately 7.5% per year on underpayments. Fraud penalties can reach 50% of the underpayment.
New York grants an automatic 6-month extension for personal income tax (file IT-370) and corporate franchise tax (file CT-5), but you must pay at least 90% of your tax liability by the original due date. Sales tax returns and payments cannot be extended.
New York State Department of Taxation and Finance
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