09/04/2026
Do you think your property assessment may be too high?
You have the right to challenge your assessment, but you must file during the correct filing period.
For Nassau County, the next filing period is January 4 through March 1, 2027.
New York City, Suffolk County, and other New York municipalities have different schedules. Always confirm the current deadline with the proper government office.
Save and share this calendar with another New York property owner.
If you need help finding the official assessment page for your area, comment “TAX” or message me with your town.
This information is for general guidance only and is not tax or legal advice.