New York · property tax · 2027
New York property tax grievance day 2027.
Outside places with their own charter date, the board of assessment review meets beginning the fourth Tuesday in May. In 2027 that is Tuesday, May 25. A complaint filed on or before that day is timely.
Statute-based date, check your town
This page is arithmetic and a plain-English reading of the statute. It is not legal, tax or financial advice. New York City and many counties and cities set their own grievance dates by local law. Confirm with your assessor.
Count down to grievance day
The New York rule
Real Property Tax Law section 512(1) says the board of assessment review begins meeting to hear assessment complaints on the fourth Tuesday of May, or on another date set by city charter, county charter, county tax act or other special law. Section 524(1) adds that complaints may be filed with the assessor at any time before the board's hearing, or with the board at that hearing, and that any complaint filed on or before the date established by law for the hearing is deemed timely. The fourth Tuesday of May 2027 is May 25.
Places that differ
Section 512(1-a) lets a municipality whose assessor also serves another assessing unit pick a date no earlier than the fourth Tuesday in May and no later than the second Tuesday of June, by local law. New York City and some cities and counties use different calendars. This page cannot list them; your assessor's office can tell you the date for your parcel.
What to file
Section 524(3) requires, outside cities of five million or more, a form prescribed by the Commissioner of Taxation and Finance. It must state in what way the assessment is excessive, unequal or unlawful, or the property misclassified, give the reduction sought, and include an estimate of the property's value. The person whose property is assessed, or someone authorized in writing, must sign it.
Is your assessment actually too high?
The New York Department of Taxation and Finance suggests three steps: check the facts on your assessment record, estimate your property's market value, and compare with the assessor's number. It also notes that your assessment may be accurate against market value while your town assesses everything at a lower percentage. For example, if properties in your town are assessed at 90% of market value and your $100,000 home is assessed at $100,000, it is over-assessed; the fair figure would be $90,000.
- A short list of recent sales of similar homes nearby.
- An appraisal, purchase contract or closing statement if you bought recently.
- Photos and repair estimates for condition problems.
- Your town's equalization (level of assessment) rate, from the assessor.
Limits of this page
- The countdown uses the dates you enter; the default is the statutory default.
- It does not include small claims assessment review (SCAR) or court deadlines.
- If your taxes are high but your assessment is fair, the assessor cannot help; the tax-setting bodies are the school board, county, town and special districts.
Frequently asked questions
When is grievance day in New York in 2027?
Under RPTL 512(1) the board of assessment review begins meeting on the fourth Tuesday of May, which is May 25, 2027, unless a charter or local law sets another date.
Is a complaint filed before grievance day timely in New York?
Yes. Section 524(1) says a complaint filed on or before the date established by law for the board hearing is deemed timely.
Does this apply in New York City?
Not necessarily. The statute lets city charters and special laws set other dates. Check with your assessor or the city tax tribunal for your parcel.
What if my assessment is fair but my taxes are high?
The assessor determines assessments, not tax rates. Take rate concerns to the school board, county, town or district that levies the tax.
Sources
Read November 2, 2026. Figures and rules on this page come from these pages and no others; what each one could not confirm is stated above.