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Check your assessment


Your property's assessment is one of the factors used by your local governments and school district to determine the amount of your property taxes. All real property, commonly known as real estate, is assessed. Real property is defined as land and any permanent structures attached to it.

Examples of real property:

  • Houses
  • Office buildings
  • Farms
  • Factories

Assessments and market value

A property's assessment is based on its market value. Market value is how much a property would sell for under normal conditions.

Assessments are determined by the local Assessor. Assessors are local government officials who estimate the value of real property within a municipality. Most assessors work for a city or town, though some are employed by a county or village. Assessors may use different methods to estimate property value. See How property is assessed.

All properties in your municipality (except in New York City and Nassau County) are required to be assessed at a uniform percentage of market value each year. In other words, all taxable properties in your city or town must be assessed at market value or at the same percentage of market value. For example, if the market value of your home is $200,000, and assessments in your community are at 30 percent of market value, your assessment should be $60,000.

In communities assessing property at 100 percent of market value, your assessment should equal roughly the price for which you could sell your property. In communities assessing at a percentage of market value, the estimated market value of each property is listed on the tentative assessment roll.

Municipalities that have not conducted recent Reassessments will not be assessed at 100 percent of market value. Watch About Property Taxes and Assessments to learn more.

Assessment rolls

Assessment rolls list information for every property within a municipality. Review your municipality’s assessment roll to verify your assessed value and exemption status. All municipalities publish their Tentative assessment roll and their Final assessment rolls annually. In most towns and cities, the Tentative roll is published on May 1. At that time, property owners have an opportunity to check the assessment roll to review the market and assessed value, applied property tax exemptions and other related information, as well as review the assessments of other properties in the community. Watch Is your assessment fair? 

The Tentative assessment roll is required to be available for viewing on your municipal or county website within ten days of the tentative roll date (May 1 in most communities). See Overview of the assessment roll to learn how to read an assessment roll. 

Following publication of the Tentative assessment roll, you have the opportunity to Contest your assessment by filing a grievance. Watch Contesting an assessment.

After all filed grievances have been heard, necessary adjustments are made and the Final assessment roll is published. In most towns and cities, Final assessment roll is published on July 1.

Each year, Property tax bills are calculated based on the information listed on the Final assessment roll.

Find your local assessment roll (municipalities outside of New York City)

  1. Visit the Municipal Profiles application.
  2. Select search for a city, town, or village.
  3. Select the county from the drop-down menu.
  4. Select the SWIS code for the municipality.
  5. Select local officials addresses.
  6. Use the link at the top of the table to go to your municipality's website. Your municipality's homepage should include a link to the assessment roll. 

If your municipality does not have a website, or the assessment roll is not posted on it, visit your county website instead.

View the New York City assessment roll

For property located within one of the city's five boroughs, visit the New York City Department of Finance website to view your property assessment roll data.