New York Property Tax Protest Guide for 2026
Reviewed by RedTools Research Team, with New York assessment-appeal methodology review.
Last updated: April 30, 2026
New York runs two separate property tax appeal systems — one inside New York City (Tax Commission) and one for the rest of the state (local Boards of Assessment Review on Grievance Day). The procedures, forms, and deadlines are entirely different. The first thing to determine is which system applies to your property.
New York City vs. The Rest of New York State
| Jurisdiction | Authority | Form | Deadline |
|---|---|---|---|
| NYC (5 boroughs) | NYC Tax Commission | TC-101 (or TC-108 for income-producing) | March 15 (Class 1) / March 24 (Classes 2-4) |
| Outside NYC | Local Board of Assessment Review (BAR) | RP-524 | Grievance Day — typically 4th Tuesday in May (varies) |
NYC Property Tax Class System
NYC properties are placed in one of four classes:
- Class 1: 1-3 family homes (most NYC houses).
- Class 2: Larger residential (4+ units, condos, co-ops).
- Class 3: Utility property.
- Class 4: Commercial / industrial.
Each class has different assessment ratios, growth caps, and tax rates. The NYC Tax Commission process and form differ by class. Most homeowners are Class 1 (file TC-101 by March 15) or Class 2 (TC-101 or TC-108 by March 24).
Outside NYC: Grievance Day
Most upstate and Long Island municipalities hold a single “Grievance Day” on the 4th Tuesday of May, but the date varies. You file Form RP-524 (Complaint on Real Property Assessment) with the local Board of Assessment Review. The BAR meets in person; you can attend or submit written evidence.
If the BAR denies relief, you have two further paths under NY Real Property Tax Law (RPTL):
- Small Claims Assessment Review (SCAR) — available for owner-occupied 1-, 2-, or 3-family homes. Lower cost (~$30 filing fee), simpler process, decided by a hearing officer.
- RPTL Article 7 proceeding — formal court action in Supreme Court. Required for non-residential or larger residential.
Strong Evidence in New York
- 3–5 comparable sales with similar size, age, and location, ideally sold within the past year.
- Equalization rate awareness. Most NY municipalities assess at less than 100% of market value. The equalization rate published by the state translates assessed value to market value — you must compare apples to apples.
- For NYC condos / co-ops: the “hypothetical rental approach” the city uses can be challenged with comparable rent and capitalization-rate evidence.
- Photos of condition issues — particularly for older NYC and Hudson Valley housing stock.
Equalization Rate — The Math That Trips Up Most Homeowners
Outside NYC, your home is assessed at a fraction of market value. If your assessed value is $200,000 and the equalization rate is 50%, your implied market value is $400,000. To win, you need comparable sales that suggest market value below $400,000 — not below $200,000. Always confirm the equalization rate published by the NY State Department of Taxation and Finance for your municipality before filing.
New York Counties & Cities
| Jurisdiction | System |
|---|---|
| NYC (Manhattan, Brooklyn, Queens, Bronx, Staten Island) | NYC Tax Commission |
| Nassau County | Nassau County ARC |
| Suffolk County | Town BARs (varies) |
| Westchester | City / town BARs |
| Rockland | Town BARs |
| Erie (Buffalo) | City of Buffalo BAR / town BARs |
| Monroe (Rochester) | City / town BARs |
| Albany | City / town BARs |
Common New York Mistakes
- Confusing assessed value with market value. Always check the equalization rate first.
- Filing on the wrong form. NYC uses TC-101/TC-108; outside NYC uses RP-524.
- Missing Grievance Day. The 4th Tuesday in May is the typical default but can be different in some towns — confirm.
- Skipping SCAR. Owner-occupiers should usually take SCAR over Article 7 if BAR denies relief — it’s vastly cheaper and faster.
New York References
- NY State Department of Taxation — Property Tax
- NY: Contest Your Assessment (Grievance)
- NYC Tax Commission
- Form RP-524
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