When is Grievance Day in New York for 2026?
When is Grievance Day in New York for 2026?
In most New York towns and cities, 2026 Grievance Day is the fourth Tuesday in May (May 26, 2026), but you must confirm the exact date with your assessor — NYC and Nassau County run on entirely different calendars.
Grievance Day is the single day each year when the Board of Assessment Review (BAR) meets to hear assessment complaints. In most New York communities it falls on the fourth Tuesday in May, which in 2026 is May 26. The state explicitly cautions that the date can vary by municipality, so confirm yours with the assessor or municipal clerk — see the Grievance procedures page.
Why the date moves. Some assessing units (and most villages that assess separately) hold Grievance Day on a different statutory date. Villages that prepare their own assessment roll have a separate grievance date from their town. The safest practice is to look up your specific town, city, or village rather than assume the fourth-Tuesday default.
Major exceptions — different systems entirely:
- New York City: there is no "Grievance Day." Challenges go to the NYC Tax Commission, with deadlines of March 15 (Tax Class 1) and March 1 (Tax Classes 2, 3, and 4).
- Nassau County: challenges go to the Assessment Review Commission (ARC) through the AROW online system, with the 2027/28 filing window running January 2 through March 2, 2026.
- Suffolk County towns: Grievance Day is the third Tuesday in May, not the fourth.
Don't miss it. The grievance deadline is firm. If you miss Grievance Day you generally cannot grieve to the BAR that year, and you lose the ability to pursue SCAR or an Article 7 court proceeding for that roll — those judicial routes require a prior BAR grievance. File Form RP-524 by the deadline even if you intend to escalate later.