How to appeal property taxes in New York
County-specific guides with this year's deadlines, the exact forms, and step-by-step filing instructions — researched from official New York sources. Or skip the reading: run your address through the free check and get your county's answer in about two minutes.
Kings County
Kings County homeowners: 2026/27 NYC Tax Commission appeal deadlines were Mar. 16 (Class 1) and Mar. 2 (others). Forms, fees, steps.
Nassau County
Nassau ARC’s 2026 appeal deadline has passed; next regular deadline is Mar. 1, 2027. Forms, filing options, hearings & savings.
Queens County
Queens property tax appeals were due March 16, 2026 for Class 1 homes—learn exact forms, filing places, fees, hearings, and savings.
Suffolk County
Suffolk County’s 2026 grievance deadline was May 19; next is May 18, 2027. File RP-524 with your town assessor—not the county.
Westchester County
Westchester homeowners: most 2026 town grievances were due June 16. Learn where to file RP-524, evidence tips, fees, timelines, and savings.
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