New York property tax appeal · $49 flat · keep 100%
How to appeal your New York property taxes
Most New York homeowners file a grievance (Form RP-524) with their town or city Board of Assessment Review on Grievance Day, commonly the fourth Tuesday in May. If the BAR denies relief, owners may pursue Small Claims Assessment Review (SCAR). New York City and Nassau County use their own separate processes and earlier deadlines.
New York appeal deadline
Grievance Day — in most of the state the fourth Tuesday in May, but it varies by municipality.
Outside New York City and Nassau County, you file Form RP-524 on your municipality's Grievance Day, commonly the fourth Tuesday in May — but towns set their own dates. New York City (NYC Tax Commission) and Nassau County (Assessment Review Commission) run entirely separate systems with earlier deadlines. Always confirm with your local assessor.
The New York appeal process, step by step
1. Check your tentative assessment roll
Most towns publish a tentative assessment roll on May 1. Compare your assessment to recent sales of similar homes and to your municipality's residential assessment ratio.
2. File Form RP-524 by Grievance Day
File the Complaint on Real Property Assessment (Form RP-524) with your Board of Assessment Review by Grievance Day — commonly the fourth Tuesday in May, but confirm your municipality's date. There is no filing fee.
3. Board of Assessment Review
The BAR reviews your complaint and may reduce your assessment. Bring comparable sales and, if relevant, evidence of an above-ratio assessment.
4. Small Claims Assessment Review (optional)
If the BAR denies relief, owner-occupants of a one-, two-, or three-family home can file for Small Claims Assessment Review (SCAR) within 30 days of the final roll for a modest court filing fee.
5. NYC and Nassau are different
New York City files with the NYC Tax Commission (around March), and Nassau County files with the Assessment Review Commission (deadline typically in spring) — both separate from the statewide Grievance Day process.
New York counties
County-specific filing notes for New York's largest markets. More counties added as we expand.
Nassau County
Mineola
Nassau uses its own Assessment Review Commission with an earlier deadline (typically spring) — NOT the statewide Grievance Day. File online with ARC.
Suffolk County
Riverhead
Suffolk grievances are filed at the TOWN level (e.g., Brookhaven, Islip, Huntington) on each town's Grievance Day, commonly the third Tuesday in May. Confirm your town's date.
Westchester County
White Plains
Westchester grievances are filed with your city or town Board of Assessment Review on its Grievance Day, commonly the fourth Tuesday in May. Confirm locally.
New York property tax appeal FAQ
When is Grievance Day in New York?
In most of the state, the fourth Tuesday in May — but each municipality sets its own date, so confirm with your local assessor. New York City and Nassau County use separate, earlier deadlines.
What form do I use to grieve my New York assessment?
Form RP-524, the Complaint on Real Property Assessment, filed with your local Board of Assessment Review. There is no filing fee for the grievance itself.
What if the Board of Assessment Review denies my grievance?
Owner-occupants of a one-, two-, or three-family home can file for Small Claims Assessment Review (SCAR) within 30 days of the final assessment roll for a small court fee.
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