Property tax guides
Straight answers for Nassau homeowners, each linked to the County sources behind it.
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How to grieve your taxes in Nassau County
Check your assessment, file free with ARC by March 1, then go to SCAR if ARC doesn’t cut it.
Walk through the processUnderstand your taxes
Moving to Nassau County? How property taxes work
About 1.7% of home value a year, close to Westchester and North Jersey and roughly double New York City.
Understanding your Nassau County assessment
Market value, assessed value and your bill measure different things. A grievance argues the value behind your assessment is too high.
How your tax bill is calculated
Taxable assessed value times each district’s rate. A grievance lowers your share, not the levy.
Is it worth grieving your taxes?
For most homes, yes. It’s free, it can’t raise your assessment, and most homes that file win something.
What happens if you don’t grieve?
Your bill can still rise: when neighbors win cuts, the homes that didn’t file pay a larger share.
Nassau County property tax due dates
School halves are due October 1 and April 1, general halves January 1 and July 1, each with about 40 days to pay.
Can filing raise your assessment?
No. ARC lowers your assessment or leaves it unchanged, though your bill can still change for other reasons.
Prepare an appeal
The tentative assessment roll: what to check
It’s the figure you appeal. Check the facts, the values and your exemptions as soon as it’s published.
Nassau County tax grievance deadline
January 4–March 1, 2027, filed with ARC. Don’t count on an extension.
Fixing errors on your property record
Ask the Department of Assessment to fix wrong facts, but check the whole record first: a correction can add value too.
Choosing comparable sales
Homes like yours in size, type, location and condition. A neighbor’s lower tax bill isn’t evidence.
How much does a tax grievance cost?
Filing with ARC is free and SCAR costs $30. Representatives charge a share of the savings, a flat fee, or both.
Choosing a tax grievance company
You never need one to file with ARC. If you hire one, read the agreement closely and sign only one authorization a year.
The grievance form: filing online with ARC
Free, with no attorney needed. Gather your record, your view of the value and your evidence, then keep the confirmation.
After ARC’s decision
Your ARC decision: what to do next
Decisions arrive by March 31. Accepting an offer settles the assessment and rules out SCAR.
Small Claims Assessment Review (SCAR)
An optional review after ARC, with eligibility rules, a $30 fee and a short deadline.
Escrow after a tax cut
Your lender keeps collecting for the old bill until it reruns your escrow analysis.
How grievance savings and refunds are paid
A cut shows up on the bills from the final roll: school bills that October, general bills the next January.
Exemptions
Property tax exemptions and STAR
Exemptions are separate from appeals, and you can have both. Check your value and the benefits your household qualifies for.
STAR and Enhanced STAR
STAR lowers school taxes for owners who live in the home. New owners register with the State for a credit check.
The senior citizens’ exemption
A County exemption, separate from Enhanced STAR, with a much lower income limit that counts Social Security.
Veterans’ property tax exemptions
One of three exemptions, which usually cut county and town taxes, and school taxes where the district opts in.
The disability property tax exemption
It can cut a qualifying owner’s assessment by up to 50%, depending on income, but not alongside the senior exemption.
Special situations
Just bought or built a home in Nassau County?
Your price and the County’s value are measured at different times. Check the record and apply for exemptions in your own name.
Village tax grievances
If your village assesses on its own roll, its grievance is separate from ARC and typically due the third Tuesday of February.
Co-op and condo tax grievances
A co-op’s board appeals for the building. A condo owner can file, but not for the same year as the board.