Lower your Westchester County property taxes
Westchester's towns and cities each do their own assessing, and town grievances are due in June — later than almost anywhere else in New York. With some of the highest tax rates in the state, a small error in the market value behind your assessment costs real money. 30% of first-year savings, only if you save.
What a too-high value costs you
If your home is assessed at $850,000 but similar homes point to about $785,000, you're taxed on $65,000 too much. At a 2.30% rate that's about $1,495 a year. Our fee would be $449; you'd keep $1,047.
What gets missed in Westchester
- A June deadline — or not. Towns hold Grievance Day on the third Tuesday in June, but the cities, such as Yonkers and White Plains, run their own grievance process. Check your city or town.
- The equalization rate. Assessments can be a fraction of value. Divide yours by the state equalization rate to see the market value it implies — the number our example uses.
- Condition. Dated kitchens, roof wear and water problems aren't in the assessor's records.
- Wrong comparisons. Sales from a different village or school district with different prices and tax rates.
Insider tip: Mailed forms count only when the town receives them, so we file well ahead of Grievance Day rather than on it.
Reviewed by the founder
Julien reviews every Westchester case personally and tells you the value we’ll ask for before anything is filed.
Get my free reviewWestchester County calendar
| July 1, 2026 | Valuation date in most towns |
| May 1, 2027 | Taxable status date; exemption applications due |
| June 1, 2027 | Tentative roll filed; grievance period opens |
| June 15, 2027 | Grievance Day in Westchester towns — RP-524 due |
| September 15, 2027 | Final roll filed; grievance results mailed |
| October 15, 2027 | SCAR deadline with Westchester County (30 days after the final roll) |
| April 1, 2028 | Town and county tax bills first reflect the result |
Sources: Town of Greenburgh — assessment calendar · NYS Tax Department — grievance procedures · NYS Tax Department — understanding the equalization rate · NY Open Data — full value tax rates by municipality (ORPTS). Dates are checked each year; confirm with the county for your property.
Exemptions to check
New owners get the STAR credit from the state if household income is $500,000 or less; owners 65 and older with income up to $113,550 can get Enhanced STAR for 2027. Veterans and lower-income seniors may qualify for partial exemptions where their municipality and school district offer them. Exemption applications are due to the assessor by May 1 in most towns. We check your exemptions free at sign-up.
Westchester questions
How do I grieve in Westchester?
File Form RP-524 with your town's assessor or Board of Assessment Review by June 15, 2027. To have us file, you sign Part Four naming us as your representative. If you're in a city, check its date.
What if the board doesn't lower it?
Owner-occupied 1–3 family homes can file Small Claims Assessment Review (SCAR) for $30 within 30 days after the final roll — by October 15, 2027 in towns with a September 15 final roll.
Can I use the equalization rate as evidence?
Yes. State guidance says owners outside Nassau and New York City may use it as one piece of evidence before the board and in SCAR.