Serving Nassau County Homeowners since 2016
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Tax Calendar

Important Dates for Property Tax Grievance Filings

Filing periods and deadlines vary by county and tax year.

Below are the key dates for Nassau and Suffolk Counties.

PTRG will handle the process and ensure your grievance is filed on time.

Nassau County

Nassau County

Next Filing: For 2028-29 Tax Year

Homeowner Registration Opens

September 1, 2026

You can start providing your information to PTRG for the 2028-29 tax year.

PTRG Review & Analysis starts

September 1, 2026

PTRG will review your property information, analyze your assessment and prepare your case.

Grievance Filing Period Begins

January 4, 2027

PTRG begins filing grievances with the Nassau County Assessment Review Commission (ARC).

Typical Filing Deadline

March 2, 2027

Last day to file a grievance for the 2028-29 tax year. Dates may be subject to change by the County.

Review Process

After Filing

ARC will review your grievance and issue a determination. Timelines vary.

We've Got You Covered

PTRG will track all deadlines and make sure your grievance is filed on time.

Suffolk County

Suffolk County

Next Filing: For 2027-28

Tentative Assessment Roll

May 1, 2027

Filing Grievance Deadline

May 18, 2027

SCAR Filing

Huntington

Sept. 15 to Oct. 15

SCAR Filing

Babylon
Brookhaven
East Hampton
Islip
Riverhead
Shelter Island
Smithtown
Southampton
Southold

July 1 to July 31

Plan Ahead. Save More.

The sooner you provide your information, the more time PTRG has to build a strong case and maximize your tax savings.

Questions about dates or your property?

Call Us Today

516-810-1111

Why Homeowners Trust PTRG With Their Tax Grievance

No Reduction
No Fee

You pay nothing unless we reduce your taxes.

Experienced Team

Former ARC Commissioner knowledge and 10+ years of proven results.

On Time. Every Time.

We track every deadline and file your grievance on time.

Lower Fee

Only 25% of your tax savings. You keep 75%.

Local Expertise

Serving Nassau County since 2016 and now Suffolk County.

Ready to Lower Your Property Taxes?

It takes only a few minutes to get started.

Get Started Now
516-810-1111

No Reduction
No Fee

25% Fee
You keep 75%

Your Information
is Secure

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Long Island Homeowners