Property Assessment

The Nassau County Department of Assessment establishes values for land and improvements as the basis for property taxes.


Nassau County Department of Assessment (516) 571-1500
General Information
Provides information from the Department of Assessment on rules, procedures, exemptions and general information.
Index of Services
Includes frequently asked questions and detailed information on tax exemptions.
Look Up Property Assessment
Information Line for Assessment and Tax Information (516) 571-1500
How Is My Tax Determined?
Find Your Property Tax Classification
Property Tax Exemptions
Includes information on veterans, senior citizens, and new construction exemptions.
How Do I Appeal My Property Assessment?
Information on Obtaining Public Property Information
New York State School Tax Relief (STAR) Exemption
Important Dates


Village of East Rockaway Clerk’s Office
Town of Hempstead Receiver of Taxes
Village of Hempstead Tax Assessor
Village of New Hyde Park
Town of North Hempstead
Village of Lake Success