New York Property Tax Assessors

Westchester County, New York Tax Assessors' Office

Westchester County Assessors Phone Number
Westchester County Tax Commission
110 Dr. Martin Luther King Jr. Blvd., Room L-222
White Plains, New York 10601
Westchester County Assessors Fax Number 914-995-4333 (Fax)

Where is the Westchester County Tax Assessor's Office?

The Westchester County Tax Assessor & Tax Commission Office is located at 110 Dr. Martin Luther King Jr. Blvd., Room L-222 in White Plains, New York.

While many counties have county-wide tax assessors, Westchester County has one cities and towns with their own local tax assessors. If your property is located within any of these localities, see that page for your tax assessor's contact information.

What can the Westchester County Assessor's Office do for me?

The Westchester County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Westchester County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Westchester County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Westchester County Assessor's Office at (914) 995 4325 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful Westchester County Facts:

The median home value in Westchester County is between $552,654.00 and $561,146.00. Property tax rates are based on property values.

How can I contact Westchester County?

You can try contacting the Westchester County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Westchester County is located in the Michaelian Office Building in White Plains, which is located at 148 Martine Avenue. You can direct your general inquiries to Westchester County with the contact info listed below.

Westchester County Phone Number


Westchester County Fax Number


Westchester County Michaelian Office Building Address

Michaelian Office Building
148 Martine Avenue
White Plains, NY 10601-3311

Useful Westchester County Links:

Links broken? Please contact us if any of our Westchester County links are not working or are out-of-date.