135,631 Brookhaven residential homeowners can file a property tax grievance each year. You file with the Town of Brookhaven Board of Assessment Review. Current deadline: Tuesday, May 19, 2026.
The Town of Brookhaven Board of Assessment Review (BAR) handles grievances for all properties within the town. You file NY State Form RP-524 either in person at the Town Assessor's office or by certified mail postmarked no later than the third Tuesday of May.
The current filing window covers the 2026/27 tax year. A successful reduction will reflect on your December 2026 tax bill (the first half) and continue annually.
Unlike Nassau, Suffolk towns use market value directly on the assessment roll. If you can show recent comparable sales below your assessor's market value figure, that's a strong case for a reduction.
The most persuasive evidence in any LI grievance:
Use the live Town of Brookhaven property data to see median home values and how your assessment compares to neighbors.
Tuesday, May 19, 2026. Filing window opens May 1, 2026.
With the Town of Brookhaven Assessor's office. Bring or mail completed Form RP-524 with your evidence. Postmark must be no later than Tuesday, May 19, 2026.
Yes. There is no limit on how often you can grieve. Suffolk doesn't reassess every year, but you can still file annually. Grievance firms recommend it because the worst case is no change.
Typical successful reductions are 5-15% of assessed value, which translates to roughly that same percentage off your annual bill. Real numbers depend on your starting assessment and how much over-assessment you can prove.
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Estimates and educational content only — not legal, tax, or financial advice. Verify with your county or town receiver, an attorney, or a CPA before making financial decisions.