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 $29 guide and workbook; you gather evidence and file), 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 State DIY Kit Guide and workbook (you gather evidence and file) · All 50 states and D.C. | $29 per purchase | $2,971 | State guidance, evidence worksheets and editable letter. You gather and verify evidence; no parcel-specific comparable report or representation. |
Ownwell Done for you · 9 states (CA, CO, FL, GA, IL, NY, PA, 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 savings for the appealed tax year | $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 savings for the appealed tax year (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 |
$3,000 is 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
Choose based on your property, evidence and how much work you will do yourself. Our $29 national DIY kit provides guidance and worksheets; you gather the evidence. The $49 Audit depends on county/address records and provides the filing or valuation output they support. Searchable records are not a promise of comparable sales. Managed services may file and represent you; compare their current local terms. No provider can guarantee an identical outcome or lasting savings.
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 offers a $29 state guide and workbook; you gather evidence and file. Its $49 Audit does not promise supported comparable evidence for every address. Ownwell and O'Connor file for you on contingency. In Nassau County, Maidenbaum is a well-known grievance firm that charges 50% of savings for the appealed tax year, 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 savings for the appealed tax year; Ownwell charges a recurring percentage that varies by state). Attorney firms quote their fee directly. A flat-fee DIY packet like AppealMyTax’s state guide is $29, with no percentage fee and no property-specific evidence included.
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 you must gather and verify yourself; our $29 kit helps organize it. If the Board denies relief, you can file Small Claims Assessment Review (SCAR).
Prepare your own appeal in New York
The $29 DIY kit includes state process guidance, fillable evidence worksheets and an editable letter. You gather your property evidence and file yourself; property-specific comparables are not included.
View the New York DIY kit · $29See a New York worksheet excerpt
Want to check available property records first? Coverage and comparable evidence vary by address. Where supported, the results explain what the separate $49 Property Assessment Audit includes before you buy. A records check does not establish that you are overassessed.
Check available New York property records · Free
You can prepare before your filing window. Verify your current local deadline; buying a kit does not extend it.