Nassau County, NY property tax deadlines
6 coming property tax dates for Nassau County, New York. Each one links to its official source and shows the day LevyDay last checked it.
| Next dates | Bills due | Last day without penalty | Appeal by | Exemption filing |
|---|---|---|---|---|
| Nassau | Not on file | Nov 10, 2026hempsteadny.govOct 21 | Mar 1, 2027tax.ny.govOct 21 | Jan 2, 2027 Sattax.ny.govOct 21 |
Deadlines in date order
| Date and source | Deadline |
|---|---|
| January 2 every yeartax.ny.govOct 21 | Exemption filing Apply for exemptions in Nassau towns This is the taxable status date. |
| February 10 every yearhempsteadny.govOct 21 | Last day without penalty County and town tax first half The bill is due January 1. This is the last day without a penalty, per the Town of Hempstead Receiver of Taxes. |
| March 1 every yeartax.ny.govOct 21 | Appeal deadline Challenge your assessment with the county File with the Nassau County Assessment Review Commission. |
| May 10 every yearhempsteadny.govOct 21 | Last day without penalty School tax second half The bill is due April 1. This is the last day without a penalty, per the Town of Hempstead Receiver of Taxes. |
| August 10 every yearhempsteadny.govOct 21 | Last day without penalty County and town tax second half The bill is due July 1. This is the last day without a penalty, per the Town of Hempstead Receiver of Taxes. |
| November 10 every yearhempsteadny.govOct 21 | Last day without penalty School tax first half: pay by this day The bill is due October 1. This is the last day to pay without a penalty. Nassau towns collect on this schedule, published by the Town of Hempstead Receiver of Taxes. The cities of Glen Cove and Long Beach may differ. |
Appealing your assessed value
Appeal by Mar 1, 2027 in 129 daystax.ny.govOct 21
If you think the county valued your home too high, you can appeal. Filing with the county is free and you can do it yourself.
Get help filing an appeal
After you send your details, we look for an independent appeal firm or attorney to take your case. We'll be in touch once one has agreed. Firms usually charge a share of what you save, and the one that takes it may pay LevyDay a referral fee.
LevyDay doesn't file appeals or give legal or tax advice. We only pass your details on. The independent firm or attorney that takes your case does the work and sets its own fee.
Get help filing an appealGood to know in New York
- Paying late: Under state law, interest on late property tax payments is 1% per month or part of a month. Places not covered by that law may charge a different rate. More tax.ny.govOct 21
- Appealing your value: If your village assesses property, you have two assessments. To grieve both, file a separate RP-524 with the town and with the village. More tax.ny.govOct 21
- Homestead exemption: The School Tax Relief (STAR) benefit needs the home to be an eligible owner's primary residence. Basic STAR has an income limit of $500,000 or less for the credit. More tax.ny.govOct 21
- Second homes and rentals: If you don't live in the town where you own property, you can ask in writing for your assessed value and the grievance hearing time and place, no later than 15 days before the tentative roll date. You can also ask for a hearing after grievance day, but you must still file RP-524 by grievance day. More tax.ny.govOct 21
Official offices
Places in Nassau County
Among them: Albertson, Atlantic Beach, Baldwin, Barnum Island, Baxter Estates, Bay Park, Bayville, Bellerose, Bellerose Terrace, Bellmore, Bethpage, Brookville, Carle Place, Cedarhurst, Centre Island, Cove Neck, East Atlantic Beach, East Hills, East Massapequa, East Meadow, East Norwich, East Rockaway, East Williston, Elmont, and 109 more. Every place in the county gets the dates above.
Nearby in the New York list
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