Interest is charged from the original due date if payment is not received by the 15th-of-the-month grace period.
Fiscal year July 1 to June 30; quarterly bills for assessed value of $250,000 or less, semiannual (July 1 and January 1) above that. If a due date lands on a weekend or public holiday, most counties move it to the next business day — check the county's own notice before relying on the shift.
How to pay
Online: through www.nyc.gov — the only portal this county operates.
By post: mail a cheque to the treasurer's office; the postmark date usually counts, not the arrival date.
In person: the treasurer's office during business hours; bring your bill or parcel number.
Mortgage escrow: if your taxes are escrowed, the servicer pays — you still owe the difference if your escrow is short.
Common questions
When are property taxes due in New York County, NY?
1st quarter FY2027: July 1, 2026. 2nd quarter FY2027: October 1, 2026. 3rd quarter FY2027: January 1, 2027. 4th quarter FY2027: April 1, 2027.
What happens if I pay late in New York County?
Interest is charged from the original due date if payment is not received by the 15th-of-the-month grace period.
How do I pay New York County property tax?
Pay online through www.nyc.gov, the county's own payment portal, or by post or in person at the treasurer's office.
Is the New York County deadline the same every year?
Fiscal year July 1 to June 30; quarterly bills for assessed value of $250,000 or less, semiannual (July 1 and January 1) above that. Counties shift dates when billing is delayed, so confirm against the county source linked on this page.
What if I can't pay in full?
Most counties offer instalment plans or partial payment — ask the treasurer before the due date, not after. Once the bill is delinquent the options shrink and the fees start.
Does a late payment affect my mortgage?
Unpaid property tax is a lien on the property in most states, which your servicer may pay and then bill you for, with fees. It does not disappear.
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StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.