The Nassau County Assessment Review Commission (“ARC”) postponed the deadline for filing grievances challenging the tentative 2024/25 property tax assessments to April 3, from March 1. ARC, the agency charged with the duty of reviewing and correcting the tentative assessments published by the Nassau County Assessor, announced the filing extension on its homepage:

The timely filing of a grievance by a taxpayer is a prerequisite for review of the tentative assessments that will form the basis of the 2024/25 school and 2025 general property tax bills. The Assessor published the 2024/25 tentative assessment roll on January 2, 2023, freezing assessed values for a third consecutive year since the widely publicized 2020/21 County-wide Reassessment. Nassau County Executive Bruce Blakeman cited the January 12 Reassessment audit report conducted by the Nassau County Comptroller. See coverage here:

The new deadline to file 2024/25 grievances is April 3, coinciding with the Nassau County Assessor’s publication of the final assessment roll for the 2023/24 tax year. Taxpayers will then have 30 days to file a petition in court seeking judicial review of these final assessments; this will form the basis of the ensuing October 2023/24 school and January 2024 general property tax bills. Taxpayers can review their assessments and tax bills online at:

Finally, the filing period has begun for Nassau County commercial property owners to submit their 2022 Annual Statement of Income & Expense. The “ASIE” forms must be filed by owners of income producing property on or before April 1, 2023, using the online portal which can be found here with additional materials and instructions:

Thank you to Farrell Fritz Partner Michael P. Guerriero for this week’s Tax Tracker post. Michael serves as Chair of the Nassau County Bar Association Condemnation Law and Tax Certiorari Committee.

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