Long Island late property tax penalty calculator
Missed a payment date? See how much extra you’ll owe from your county, the bill amount and how late you are. Penalties build up, so the longer you wait, the worse it gets.
Estimates only. Penalty rates are set by Nassau and Suffolk County law and can change. Confirm the exact balance with your receiver of taxes before paying. This tool doesn’t include tax-sale fees, attorney’s fees or interest on earlier unpaid balances; if you’ve fallen more than one cycle behind, call your receiver.
Total you’ll owe
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| Original bill | — |
|---|---|
| Days late | — |
| Penalty rate | — |
| Penalty | — |
| Interest, if any | — |
Nassau penalty schedule
Not included: tax-sale fees, attorney’s costs once a lien is sold, interest from earlier cycles and receiver service fees. For balances more than a year old, or a property already in tax-sale proceedings, contact the county comptroller directly.
How late penalties work on Long Island
Once a bill goes unpaid, the charges build, and eventually the county can sell a tax lien on the property. Pay on time when you can.
- Nassau: about 1% a month for the first four months after a missed due date, then it rises. Bills are paid by the half (school: November 10 and May 10; general: February 10 and August 10).
- Suffolk: harsher. The second half is due May 31. After that, a 5% penalty plus 1% a month in interest applies, and the interest counts from February 1, not May 31, so missing May by one day adds about 9% to the second half.
- Both counties: unpaid bills go to a tax-lien sale roughly a year after the second-half due date. If you don’t redeem within the legal window, you can lose the home.