Dates You Should Know (Nassau County)

January 2nd: The Board of Assessors adopts the tentative assessment roll for the following year and the formal assessment grievance period begins.

January 2nd through March 1st: Period for examining the tentative assessment roll and filing applications for review (protest forms) with the Board of Assessors or the Assessment Review Commission (ARC).

March 1st: Grievance Day. The final day for filing applications for review (protest forms).

April 1st: Assessment roll becomes final. The Board of Assessors certifies assessed valuations to all school districts, municipalities and special districts. Those people eligible for exemptions are notified that they have received them. This is also the first day of a thirty day period during which writs of certiorari and small claims assessment changes can be filed. If ARC has not rendered a decision by April 1, a Small Claims Assessment Review (SCAR) or writ of certiorari may be filed within 30 days after ARC's decision.

April 30th*: The last day for filing writs of certiorari and filing for Small Claims Assessment Review.

Other Dates: If you live in a village or city, that municipal government maintains its own tax rolls for its own purposes. You must file separately for an exemption on city or village taxes or to challenge your village or city assessment. The deadlines vary, so check with your village or city assessor or clerk for additional information. A separate grievance must be filed to challenge your village assessment

Dates You Should Know (Suffolk County)

May 1st: The Board of Assessors adopts the tentative assessment roll.

May 15th: Grievance Day. The final day for filing applications for review (protest forms).

July 1st: Assessment roll becomes final.

August 1st: The last day for filing Small Claims Assessment Review or thirty days after the Assessment Roll becomes Final.

Click one of the links below to obtain a blank application.