Honest comparison · 2026
Best property tax appeal services in New York (2026)
The best property tax appeal services in New York for 2026 include AppealMyTax (a $49 flat-fee packet you file yourself), Ownwell and O'Connor (contingency firms that file for you), and New York grievance specialists like Maidenbaum (Nassau County) and the attorney firm Blodnick, Fazio & Clark (Long Island). Outside New York City and Nassau County, you file a grievance on Form RP-524 with your town's Board of Assessment Review on Grievance Day, commonly the fourth Tuesday in May. Here is how the options compare on fee, who does the filing, and whether the comparable-sales evidence is real and verifiable.
| Service | Fee | You keep on a $3,000 saving | Comp data |
|---|---|---|---|
AppealMyTax Filing-ready packet (you file) · 14 Texas counties | $49 flat, one time | $2,951 | Real comparable parcels from your county's own appraisal roll, each one verifiable |
Ownwell Done for you · 8 states (CA, CO, FL, GA, IL, NY, TX, WA) | 25-35% of savings (varies by state), every year | $2,250/yr | Their analysts assemble the evidence and file on your behalf |
O'Connor & Associates Done for you · Texas + many states | 50% of first-year savings | $1,500 | Full-service firm; files and represents you (subject of a Texas AG lawsuit, allegations unproven) |
Maidenbaum Done for you · Nassau County, NY | 50% of first-year savings (no fee unless they win) | $1,500 | Files your Nassau grievance / Small Claims Assessment Review for you; no upfront fee |
Blodnick, Fazio & Clark Done for you · Nassau & Suffolk, NY (Long Island) | Contingency (no fee unless they win); rate not publicly listed | Varies | Attorney-led grievance firm; files and represents you, fee taken from first-year relief |
$3,000is an illustrative annual saving. Fees are each provider's publicly listed pricing as of June 2026; verify on their sites.
How the New York appeal process works
Most New York homeowners file a grievance (Form RP-524) with their town or city Board of Assessment Review on Grievance Day, commonly the fourth Tuesday in May. If the BAR denies relief, owners may pursue Small Claims Assessment Review (SCAR). New York City and Nassau County use their own separate processes and earlier deadlines.
Full step-by-step guide on our New York property tax appeal page, or see the data behind it in our nationwide over-assessment study.
The honest verdict
If you want it fully handled in Nassau or Long Island and do not mind a contingency cut, Maidenbaum (50% of first-year savings) or an attorney firm like Blodnick, Fazio & Clark will file the grievance for you. Ownwell handles the filing for a recurring percentage. If you would rather keep 100% and file the ten-minute RP-524 grievance yourself, a $49 flat packet built from real comparable sales is the lowest-cost option, just confirm your municipality's Grievance Day first (NYC and Nassau run separate, earlier systems).
More on why we are flat-fee and how to vet any appeal service on our honest comparison page, or run your own numbers in the fee calculator.
Frequently asked questions
What is the best property tax appeal service in New York?
It depends on whether you want to file yourself or hand it off. AppealMyTax is a $49 flat-fee packet you file yourself and keep 100% of the savings. Ownwell and O'Connor file for you on contingency. In Nassau County, Maidenbaum is a well-known grievance firm that charges 50% of first-year savings, and Blodnick, Fazio & Clark is an attorney option for Long Island.
How much does a property tax grievance service cost in New York?
Contingency firms typically take a percentage of your savings (Maidenbaum lists 50% of first-year savings; Ownwell charges a recurring percentage that varies by state). Attorney firms quote their fee directly. A flat-fee DIY packet like AppealMyTax is $49 one time with no percentage.
When is Grievance Day in New York?
In most of the state, the fourth Tuesday in May — but each municipality sets its own date, so confirm with your local assessor. New York City (NYC Tax Commission) and Nassau County (Assessment Review Commission) use separate systems with earlier deadlines.
Can I grieve my New York property taxes myself?
Yes. Owner-occupants file Form RP-524 (Complaint on Real Property Assessment) with their local Board of Assessment Review, with no filing fee. The hard part is the comparable-sales evidence, which is what a $49 packet prepares for you. If the Board denies relief, you can file Small Claims Assessment Review (SCAR).
See your real overpayment first
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