Best New York Property Tax Appeal Services in 2026 (Compared)
Last updated: June 26, 2026
New York property tax grievances are filed annually with your local Board of Assessment Review (BAR) or, in NYC, with the Tax Commission. The deadline is Grievance Day, the fourth Tuesday in May for most municipalities, though NYC has a March 15 deadline for most property types. New York has some of the highest effective property tax rates in the nation outside NYC, with Nassau, Westchester, and Rockland counties frequently cited among the highest in the country. On a $750,000 home at a 2% effective rate, a 10% reduction saves $1,500 per year. With AppealDesk at $49 flat, you keep $1,451. With a 25% contingency service, you keep $1,125.
Travis Bunn·Updated June 26, 2026Customers, In Their Own Words
As of August 2026, 42 percent of the 70 reviews on the Trustpilot profile for Ownwell are 1 star. See the live profile.
★☆☆☆☆
Ownwell was not worth it and lost me a ton of money
“They absolutely put no effort into properly protesting my property. I lost so much money because of them. The county over-valued my property by almost $400,000, and Ownwell didn’t even submit comps. … Just do it yourself.”
★☆☆☆☆
Very deceptive results
“Very deceptive results, claimed I would save $600 on my property taxes, the actual savings were $55. Plus, they charged their 25% fee on the $600 they claimed the saved me.”
★☆☆☆☆
Absolutely unacceptable
“Then I discovered that my appeal had been withdrawn. … One of the worst professional-service experiences I have ever had.”
And the reviews AppealDesk customers leave on the same platform:
★★★★★
Excellent Professional Property Tax Appeal Service
“I wanted to reach out to Travis at AppealDesk and express my sincere gratitude for your invaluable assistance in preparing my property tax appeal.”
★★★★★
An invaluable resource!
“Travis went above and beyond to help me successfully reduce my assessment by $120,700! His communication is prompt, clear, and concise but beyond that, I learned a lot about our property that I did not know and how the entire assessment appeal process works with Travis' wise and patient guidance! Travis is truly an invaluable resource. Thank you, Travis!”
★★★★★
AppealDesk is legit
“AppealDesk was extremely knowledgeable about the property tax appeal process. They handled all of my questions and helped me get the result I was hoping for.”
All excerpts are verbatim from public Trustpilot reviews, read from the live profiles on August 25, 2026. Reviews change over time, so check the profiles directly.
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#1: AppealDesk - Best for Budget-Conscious New York Homeowners
AppealDesk provides an AI-generated evidence packet with comparable sales from your county, an assessment-ratio context (New York municipalities vary widely in their level of assessment), and county-specific filing instructions. You file the grievance yourself using the step-by-step guide. Coverage spans every New York county including Nassau, Suffolk, Westchester, and all NYC boroughs.
Pros
- +$49 flat fee, the lowest price among paid services
- +All 62 New York counties covered including NYC
- +Comparable sales evidence and filing instructions delivered in minutes
- +Keep 100% of your savings with no contingency percentage
- +Instant delivery, no waiting for a firm to review your property
Cons
- –You file the grievance yourself using the step-by-step guide (10-15 minutes)
- –No hearing representation if the BAR denies your grievance
#2: O'Connor & Associates - Best for High-Value and Commercial New York Properties
O'Connor provides full-service grievance filing and hearing representation across New York. With 50+ years of experience and 100,000+ clients, they handle the process from filing through the Small Claims Assessment Review (SCAR) proceeding if needed. Strong for high-value residential and commercial properties where contingency pricing is less impactful relative to the savings.
Pros
- +50+ years of experience with 100,000+ clients served
- +Full-service including SCAR proceeding representation
- +Handles commercial and high-value residential properties
- +All 62 New York counties covered
Cons
- –Contingency percentage not prominently published
- –Process can take the full grievance cycle to resolve
- –Large firm experience, less personalized than local firms
#3: Ownwell - Best for Zero-Effort Full-Service in New York
Ownwell handles the entire grievance process for you. You sign up, provide your address, and they do everything else. Their contingency model means you pay nothing upfront and nothing if they do not achieve a reduction. They report an 88% success rate with average annual savings of $774 across their service area.
Pros
- +Zero effort, they handle filing and all hearings
- +No fee if they do not save you money
- +88% success rate (per their website) with $774 average annual savings
Cons
- –25% fee can be significant on larger New York reductions
- –You do not see or learn from the evidence used
- –Some rural New York counties may fall outside their service area
All Services at a Glance
| Service | Price | Model | Coverage | Best For |
|---|---|---|---|---|
| AppealDesk | $49 flat | DIY + evidence | All 62 NY counties | Budget-conscious, any NY county |
| O'Connor | % of savings | Full-service | All NY counties | High-value and commercial |
| Ownwell | 25% of savings (varies by region) | Full-service | New York (+ 6 states) | Zero-effort full-service |
How to Choose the Right Service
Start with your county. Nassau and Westchester have dedicated BAR procedures and strong local comparables. NYC operates on a March 15 deadline through the NYC Tax Commission, not Grievance Day. AppealDesk covers all 62 counties with county-specific instructions. Then consider pricing. New York property values are high, which means contingency fees add up quickly. On a $2,000 annual reduction, a 25% fee costs $500 versus AppealDesk's $49. If you expect savings above $200/year, flat-fee saves more. Finally, consider your time. New York grievance filings are straightforward in most counties. Most homeowners can file in 10-15 minutes with AppealDesk's guide.
Free tools to help you decide
Try our free savings calculator to check if you're overassessed before choosing a service.
Once you're ready, our appeal checklist walks you through every step.
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Frequently Asked Questions
When is the property tax grievance deadline in New York?
What is the difference between a grievance and an appeal in New York?
Can AppealDesk help with NYC property tax appeals?
Is AppealDesk cheaper than contingency services in New York?
Burned by another service this year?
If a property tax service dropped your appeal, missed your deadline, or stopped answering, we'll build your packet free. Email support@appealdesk.com with your address and what happened. We think every homeowner deserves a real shot at their appeal.