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.
Rob Hartley·Updated June 26, 2026Check If You're Overpaying
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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 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 | 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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