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Dates You Should Know

January 2nd: Tentative assessment roll adopted for the following year and the formal assessment grievance period begins.

January 2nd through March 2nd : Period for examining the tentative assessment roll and filing applications for review (protest forms) with the Assessment Review Commission (ARC). The application is available and can be obtained on-line at  www.nassaucountyny.gov/arc, in person at the Department of Assessment’s office located at 240 Old Country Road in Mineola, or by calling (516) 571-1500 after January 2, 2015. 

March 2nd: The final day for filing applications for review (protest forms).

April 1st: Assessment roll becomes final. The Assessor 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 which Writs of Certiorari and Small Claims Assessment Review (SCAR) petitions can be filed. The deadline for filing Writs of Certiorari and SCAR petitions is the last business day in April or within 30 days of Assessment Review Commission's (ARC) decision. If ARC has not rendered a decision by April 1, a SCAR petition or Writ of Certiorari may be filed within 30 days after the decision.

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.