New York State & NYC PTET March 15 Election Deadline (2026): Mandatory Online Account Rules

New York requires every S-Corporation and Partnership to make an affirmative online PTET election inside its NY Business Online Services account on or before March 15 of the tax year (March 15, 2026 for calendar-year entities), and tax professionals cannot submit the election on behalf of the entity using a preparer login.

Open 2026 $40,000 SALT Cap vs. State PTET Calculator

2026 PTET & SALT Compliance Checklist

• Adopt a Written Partner/Shareholder PTET Consent Resolution: Keep signed authorization in your corporate or partnership minute book.
• Remit Cash-Basis Vouchers Before December 31, 2026: Under IRS Notice 2020-75, cash-basis entities can deduct 2026 PTET only to the extent paid by December 31, 2026.
• Avoid Overpayment Refunds (IRC § 111): Base your Q4 PTET payment on actual projected 2026 state liability so next year's state refund isn't recaptured as ordinary federal income.