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County Executive

Posted on: February 7, 2018

County Executive Curran Extends Tax Assessment Grievance Deadline


Mineola, NY – Nassau County Executive Laura Curran today announced she has directed officials at the Assessment Review Commission (ARC) and Department of Assessment (DOA) to accept property assessment grievance filings until Monday, April 2, 2018 in order for the county to provide additional community outreach explaining the property assessment grievance process.

“Not all county property owners are familiar with the assessment grievance process and the many resources available to them to learn how to file themselves,” said County Executive Curran. “We plan to hold these workshops throughout Nassau County.”

Among the ways property owners can learn the assessment system is to visit the ARC website and view an easy to understand video at five-minute instructional video, “How to Appeal Your Assessment,” walks filers through the process and provides clear direction on how to obtain all of the information necessary to file.

“I support extending the deadline for taxpayers to file an assessment challenge,” said Nassau County Presiding Officer Rich Nicollelo. “Taxpayers should be given every opportunity to exercise their rights.”

“It’s fair to give our residents more time to educate themselves about their rights to grieve property assessment,” said Nassau County Minority Leader Kevan Abrahams.

Homeowners who believe that their assessed value for the 2018-19 school and general property tax year is too high, or property’s classification or exemption status is incorrect, are encouraged to file an “Application for Correction of Assessment” with ARC before the close of the grievance filing period on April 2, 2018.

ARC applications can be obtained online at  For individuals who do not have internet access, the application can be obtained in person at ARC located at 240 Old Country Road in Mineola, or by contacting ARC at (516) 571-3214.  ARC hours of operation are from 9 a.m. to 4:45 p.m.

Individual notices of tentative assessed value, which were mailed by DOA, are available for viewing to homeowners at  While the notices show the assigned tentative assessed value for each property for the 2019-2020 school and general tax years, it does not reflect the amount of property taxes that will be imposed by a school district or local taxing authority.  There is no fee to file an “Application for Correction of Assessment” with Nassau County.

“Homeowners need to be educated about the property assessment system. Make sure you look at your tentative assessed value and then use the county’s resources to self file a grievance,” said Curran.

If owners have not received their assessment disclosure letter that had been mailed in January, they may simply call the DOA at (516) 571-1500 or visit the department website at


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