Property Tax 101

Nassau County, New York - Assessor's Office

The Nassau County Assessor is responsible for appraising real estate and assessing a property tax on properties located in Nassau County, New York. You can contact the Nassau County Assessor for:

• Your property tax bill
• Paying your property tax
• Information on your property's tax assessment
• Reporting upgrades or improvements
• Checking the Nassau County property tax due date
• Appealing your property tax appraisal

1 West StThe Nassau County Assessor's Office is located in Freeport, New York.

Nassau County Assessor Contact Information

Additional Nassau County Information

Nassau County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the Nassau County Tax Assessor may also serve as the Nassau County Tax Appraiser.

1. The Nassau County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in Nassau County.
2. The Nassau County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
3. The Nassau County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in Nassau County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting Nassau County about your property taxes, make sure that you are contacting the correct office. You can call the Nassau County Tax Assessor's Office for assistance at 516-377-2256. Remember to have your property's Tax ID Number or Parcel Number available when you call!

Please call the assessor's office in Freeport before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Nassau County Courthouse at 516-571-3000.

Learn More

Find the tax assessor for a different New York county

Find property records for Nassau County

The median property tax in Nassau County, New York is $8,711.00

All of the Nassau County information on this page has been verified and checked for accuracy.
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