📞 (631) 212-3196
🏆 Long Island's Trusted Tax Grievance Experts

Stop Overpaying Your
Property Taxes.
We Fight — You Save.

New York Property Tax Grievance LLC files and fights your Nassau County or Suffolk County property tax grievance — at zero upfront cost. If we don't win, you don't pay.

  • No upfront cost — ever. Pure contingency.
  • Nassau County & Suffolk County covered
  • We handle everything — you do nothing
  • Filing cannot raise your taxes (zero risk)
  • Average Long Island savings: $1,500–$2,000/yr

Apply Free — Takes 60 Seconds

No obligation. No upfront cost. We'll contact you within 24 hours.

🔒 100% Secure  ·  No Obligation  ·  No Upfront Cost

We never sell your information. Submitting this form authorizes us to review your assessment and file a grievance on your behalf.

🎉

Application Received!

We'll review your property and reach out within 24 hours. Keep an eye on your email.

Your application has been submitted to New York Property Tax Grievance LLC.

$0 Upfront Cost
$1,500+ Avg. Annual Savings
$20K+ Record Single Reduction
0% Risk to Apply
2 Counties Covered
Simple Process

How It Works — 4 Easy Steps

We handle 100% of the process. After you submit your application, you sit back and wait for good news.

1

Submit Your Free Application

Fill out the short form above — just your name, address, and county. No cost, no obligation, takes under 60 seconds.

2

We Analyze Your Assessment

Our team reviews your property's assessed value versus actual market comparables to determine if you're over-assessed and build your case.

3

We File & Fight For You

We file the grievance paperwork, prepare all evidence, attend county hearings, and negotiate — you don't have to do a thing.

4

You Save — Or Pay Nothing

If we win, our fee is 50% of your first year's savings. If we don't reduce your taxes, our service is completely free.

Real Results

Record Tax Reductions on Long Island

Every dollar shown below is money homeowners are no longer paying in property taxes — every single year.

$20,109
St. James, NY
$12,730
Sands Point, NY
$12,556
Syosset, NY
$8,200
Garden City, NY
$6,400
Huntington, NY
$4,875
Chester, NY
$4,666
Clarkstown, NY
$2,081
West Babylon, NY
Coverage Area

Nassau County & Suffolk County

We serve homeowners across all of Long Island. Whether you're in Great Neck or Great River, we'll fight to reduce your taxes.

Nassau County

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Annual Filing Deadline March 31
Average Property Tax Bill $12,000–$18,000/yr
Average Grievance Savings $1,600/yr
Assessment Review Board Nassau County BAR
Court Appeal Option SCAR / Supreme Court
Nassau County has some of the highest property taxes in the nation. The county reassesses properties annually, meaning your assessment can increase every year — unless you grieve it. We file Nassau County grievances every year automatically for our clients.

Suffolk County

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Annual Filing Deadline 3rd Tuesday in May
Average Property Tax Bill $9,000–$14,000/yr
Average Grievance Savings $1,500/yr
Towns Covered All 10 Suffolk Towns
Court Appeal Option SCAR / Supreme Court
Suffolk County covers 10 towns, each with its own filing process and deadlines. We know every town's rules — from Babylon to Brookhaven to Southampton. We handle all filings automatically so you never miss a deadline.
Why Choose Us

Built for Long Island Homeowners

We're not a national company that handles millions of accounts. We're local Long Island experts who know Nassau and Suffolk counties inside and out.

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Zero Upfront Cost

Our service is 100% contingency. We get paid only when you save. If your taxes don't go down, our work is free.

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Can't Raise Your Taxes

New York State law prohibits a grievance from increasing your assessment. There is literally zero downside to filing.

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We Handle Everything

You submit one form. We research, file, appear at hearings, and negotiate. You won't need to do anything else.

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Annual Auto-Filing

We re-file your grievance every single year. You don't have to remember deadlines or fill out paperwork again.

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Local LI Expertise

We know Long Island's assessment practices, appeal boards, and local market data — far better than any national firm.

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Full Legal Representation

If needed, we escalate to Small Claims Assessment Review (SCAR) or Supreme Court — all at no additional cost to you.

Frequently Asked Questions

Everything You Need to Know About NY Property Tax Grievances

A property tax grievance is a formal challenge to your property's assessed value set by your local municipality. If your home is over-assessed — meaning the taxable value is higher than your home's actual market value — you may be paying more in property taxes than you legally should. Filing a grievance can result in a reduced assessment, lowering your annual tax bill. In New York, any property owner can file a grievance each year during the annual grievance period.
Zero upfront cost. New York Property Tax Grievance LLC works exclusively on contingency. If we successfully reduce your taxes, our fee is 50% of the first year's savings — which still means you keep 50% immediately, plus 100% in every subsequent year. If we don't reduce your assessment, you owe us absolutely nothing. A $30 court filing fee and $75 appraisal fee may apply in select cases that go to SCAR review, but these are rare and we'll always tell you in advance.
Nassau County's grievance filing deadline is typically March 31 each year (extended from the traditional late-March date). The deadline for the 2026/2027 assessment cycle was March 31, 2026. The next filing cycle for the 2027/2028 tax year will open in early 2027. Sign up now — we'll automatically file for you when the window opens so you never miss a deadline.
Suffolk County deadlines vary by town, but most fall on the Third Tuesday in May each year. For example, in 2026, most Suffolk towns had a May deadline. Each of the 10 Suffolk towns (Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton, Southold) follows its own Tentative Assessment Roll calendar. We track all 10 deadlines so you don't have to.
No — absolutely not. Under New York State law, filing a property tax grievance cannot raise your assessment or your property taxes. The process can only reduce or maintain your current tax bill. This makes it a completely risk-free action. There is never a penalty for filing a grievance, even if it is denied.
The typical timeline is 12–24 months from filing to final resolution. After you file a grievance, the Board of Assessment Review issues a decision. If the result isn't favorable, we can escalate to Small Claims Assessment Review (SCAR) or Supreme Court. In Nassau County, the process has historically taken 18–24 months for contested cases. In Suffolk County, resolution typically comes within 12–18 months. We keep you updated throughout.
Yes. Recent purchase price is one of the strongest pieces of evidence in a grievance case. If your home was assessed higher than what you paid for it (or higher than comparable homes that recently sold), you have a strong case. Many recent buyers are over-assessed because the county's data lags behind actual market changes. We recommend filing as soon as possible after purchase.
Savings depend entirely on how over-assessed your property is. Long Island homeowners typically save between $500 and $5,000 per year, with an average around $1,500–$1,600 annually. In cases of significant over-assessment, savings have exceeded $20,000 per year. Even a modest reduction of $800/year equals $8,000 saved over 10 years — all tax-free money back in your pocket.

Don't Leave Money on the Table.
Apply Free — Right Now.

Takes 60 seconds. No upfront cost. We handle everything.
Nassau County & Suffolk County homeowners served.

✦ Start My Free Application →
No win = no fee. Filing cannot raise your taxes. Zero risk.