America's Property Tax Advisor

POER's Boston office represents clients' properties in the State of New York.


This information is deemed to be a reliable calendar of specific property tax event dates that are updated quarterly and throughout the year as changes are known. However, it is not guaranteed and some dates and/or jurisdictions are not listed.


For POER's local office contact information for this state, visit our locations page.

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Assessment Ratio: Varies locally
(NY City - 45% policy)
Fiscal Tax Year: 01/01 - 12/31 
(NY City - 07/01-06/31)
Valuation Authority: City, Town or Village
(NY City - City Department of Finance)
Collection Authority: County, Town, Village & School
(NY City - City Department of Finance)
Level One Appeal Name: Board of Assessors
(NY City - City Tax Commission)
Consultant Certification/Licensing: Not required
Real Estate Taxable? Yes
RE Rendition Required: No (only in NY City)
Non-Disclosure State? No
Personal Property Taxable? No
PP Rendition Required: No
Inventory Taxable? No

Real Estate appeal deadlines vary throughout the state, and from year to year. The listing below illustrates the majority of the filing periods through the state. For further listings and verification, contact one of our offices.


Assessment Date: Jan 5  
Value Notices Issued: Jan  
Appeal Deadline:
New York City
Mar 1
Oct 24
Petition of Protective Writs
Dec 31
Nassau County

Jan - Mar

Most in February, varies by city/village
Suffolk County Feb, May
Most in February, some in May & November, varies by city/village
Westchester County Feb 19,
Jun 17
Most in February & June, varies by city/village
White Plains
Jan 21  
Yonkers Nov  
Tax Bills Issued: Jun 1  
Tax Returns Due: Jun 1 Financial rendition filing deadline. Penalty for not filing.
Tax Bills Due: Jul 1
Jan 1
1st half installment
2nd half installment


Assessment Date: Exempt
Tax Bills Due: Exempt