Tax Fair Share is a free, do-it-yourself guide for homeowners who think they may be paying more than their share of property tax. It helps you check your county's value for your home against real sales nearby, build your own evidence, and file your own grievance. You keep every dollar you save.
Where we cover
Nassau County is covered now: you can check your home today, and filing runs January 4 to March 1, 2027. Suffolk and Westchester are next. Leave your email and we'll tell you when your county opens.
What we are, and what we aren't
- We're independent. We aren't part of any county or town government, the Assessment Review Commission or any grievance firm.
- We aren't a law firm, an appraiser or a tax representative, and we never file anything on anyone's behalf. You file yourself, for free, on the county's own site.
- We use public data only: the county's published assessment roll and New York State open data.
Your information
The home check runs in your own browser. The address you type and the numbers you enter are saved on your device, not on our servers. If you sign up for a reminder, we keep your email address only to send it.
How the site is paid for
Checking your home, the evidence sheet and the filing guide are free. An optional printable Evidence Pack helps cover our costs; you don't need it to file.
Questions or a correction? Contact us.