How to Appeal Your Property Tax Assessment in New York and Save Thousands

Property taxes in New York are among the highest in the country, and for many homeowners, they represent the largest single ongoing cost of homeownership beyond the mortgage itself. What many homeowners don't realize is that a significant percentage of properties in New York are assessed above their fair market value – meaning owners are paying more in property taxes than they legally should be.

The appeal process – known as a "grievance" in New York – is a formal mechanism for challenging an assessment you believe is inaccurate. It is accessible to any property owner, it costs relatively little to pursue, and when successful, it can produce annual tax savings that persist for years.

How Property Tax Assessments Work in New York

Each municipality in New York is responsible for assessing the value of every property within its jurisdiction for the purpose of calculating property taxes. The assessed value – which may be expressed as the full market value, a percentage of market value, or a specific dollar amount depending on the municipality – is multiplied by the applicable tax rate to determine the property tax bill.

In theory, assessed values should reflect current market value. In practice, reassessments happen infrequently in many New York municipalities, and property values can change significantly between reassessments. The result is that some properties are assessed accurately, some are assessed below market value (those owners are getting a relative break), and some are assessed above market value (those owners are overpaying).

When Your Assessment Might Be Too High

Your assessment is potentially worth challenging when your assessed value – converted to the equivalent market value – exceeds what comparable homes in your neighborhood have been selling for. If the market value implied by your assessment is higher than recent sale prices of similar homes nearby, you may have grounds for a successful appeal.

You can also challenge an assessment based on calculation errors – incorrect property dimensions, incorrect improvements listed, or other factual errors in the assessment record. These mistakes are more common than most homeowners realize, and discovering one is often the fastest path to a successful appeal.

Additionally, in some municipalities, inequitable assessment is a grounds for appeal – meaning your property is assessed at a higher percentage of market value than other comparable properties in the same jurisdiction, even if the absolute assessment isn't above market value.

The Grievance Process in New York

New York's property tax grievance process is handled at the local level – by each municipality's Board of Assessment Review. The specific forms, deadlines, and procedures vary by locality, but the general process follows a consistent structure.

Filing Deadline: Every municipality has a specific "grievance day" – the deadline by which assessment challenges must be filed. Missing this deadline means waiting until the following year. In most New York municipalities, grievance day falls in late May or early June, though it varies. Confirm the specific deadline for your municipality.

Completing the Application: You file a formal grievance application – typically Form RP-524 for most New York municipalities – with the Board of Assessment Review. The form asks for information about the property and the basis for your challenge.

Supporting Your Challenge: The most important element of a grievance application is the evidence supporting your claim. For a market value challenge, this means providing comparable recent sales of similar properties in your area that demonstrate your home's market value is lower than the assessment implies. Your real estate agent can provide this data in a format useful for the grievance.

The Hearing: You may be asked to appear before the Board of Assessment Review to present your case, or your application may be reviewed without a hearing. If the Board agrees with your challenge, they will reduce your assessment. If they deny it, you have the right to further appeal to Small Claims Assessment Review (SCAR) – a relatively informal and accessible court process that many homeowners successfully use without an attorney.

How Much You Can Save

The savings from a successful grievance depend on the size of the assessment reduction and the applicable tax rate. In Nassau County, for example, where tax rates are substantial, a $50,000 reduction in assessed value can translate to annual savings of $2,000 to $3,000 or more – savings that recur every year until the next reassessment.

In high-tax areas, the cumulative value of a successful grievance over five or ten years can reach $10,000 to $30,000 or more.

Professional Grievance Services

Many homeowners work with professional grievance companies or attorneys who specialize in property tax appeals. These services typically operate on a contingency basis – they charge a percentage of the first year's tax savings only if they're successful, meaning there's no out-of-pocket risk. For homeowners who aren't comfortable preparing and presenting the challenge themselves, this is a low-risk option worth considering.

Whether you're preparing to sell and want your taxes to reflect accurate market value, or simply want to reduce your ongoing ownership costs, a property tax grievance is worth exploring. I can provide the comparable market data you need to support your challenge. Call me at (321) 447-4259 or visit movewithricky.com.

Rakesh (Ricky) Khanna | Licensed Real Estate Salesperson
Better Homes and Gardens Real Estate Realty Connect
Call or text: (321) 447-4259 | movewithricky.com