How much does GrieveItNow charge?

GrieveItNow charges a flat $99 fee for research, preparation and filing and does not take a percentage of savings.

Nassau County · 2028/29 assessment

Grieve Your Nassau County Property Taxes for $99.

Q: When is the Nassau County ARC filing period?

For the 2028/29 assessment, Nassau County ARC currently lists the filing period as January 4, 2027 through March 1, 2027.

GrieveItNow is a Nassau County property tax grievance service. We research, prepare and file your assessment grievance for one flat $99 fee — with no percentage of your savings.

$99 flatNo percentage fee

Nassau focused2028/29 assessment

Founder-ledChris & Stephen

Simple processOnline authorization

Is your home being assessed too high?

Search your address and see how your assessment compares with similar nearby homes. We also screen recent market evidence and explain what stands out in plain English.

Check My Property Free →How it works

No sign up required · Plain-English result · Human review before every paid filing

How it works

Three steps. No confusing paperwork.

You give us the property details and authorization. We handle the research, preparation and Nassau ARC filing.

Sign up

Enter your Nassau property details, pay the $99 flat fee and complete your digital authorization.

We build and file

We review the assessment, research the case and prepare the grievance for filing with Nassau County ARC.

We keep you updated

You receive filing and outcome updates by email, with a direct line to the founders when you have questions.

Simple pricing

$99

One flat fee for your 2028/29 Nassau County property tax grievance. We do not take a percentage of any tax savings.

Get started

Property and assessment research
Grievance preparation
Nassau ARC filing
Digital authorization workflow
Filing and outcome updates
Direct founder support

Founders Chris and Stephen Ambrosio standing together on Long Island

Built on Long IslandFounder-led service · Direct support

Built on Long Island

A simpler, more personal grievance service.

GrieveItNow was built by Chris and Stephen Ambrosio to make Nassau County property tax grievances easier to understand, fairly priced, and easy to track.

Instead of percentage-of-savings pricing and confusing paperwork, homeowners get a straightforward flat fee, a clear process, and direct access to the founders.

Local and approachableA real Long Island business built to help local homeowners navigate a frustrating process.

Clear flat-fee pricingOne $99 fee for research, preparation, and filing — no percentage of your savings.

Meet the founders

2027 ARC filing calendar

January 4, 2027 through March 1, 2027

Nassau County ARC lists this filing window for appeals of the 2028/29 assessment. We keep the active filing dates editable in WordPress so the site can stay current as Nassau County updates its calendar. Read the Nassau County grievance guide →

Start your 2028/29 grievance

Sign up now. ARC filing opens January 4.

Early signups are for the Nassau County 2028/29 assessment. The ARC filing period opens January 4, 2027 and the current deadline is March 1, 2027.

First name*Last name*

Email*Phone*

Property address*Start typing, then choose your Nassau County address from the verified suggestions.

City* ZIP* Parcel ID / Tax Map # (optional)If you do not have it handy, leave this blank. We can locate it from your property address.

Relationship to property*ARC requires the signer’s relationship/capacity to be stated on the authorization.Property type*

How did you hear about us?

By continuing, you agree to the Terms of Service and Privacy Policy. The $99 fee is generally non-refundable once work begins, except as required by law or as otherwise provided in the Terms.

Not sure if you have a case? Call or text us first: (516) 226-0327

FAQ

Questions homeowners ask us.

What assessment does the January 2027 filing cover?

The Nassau County ARC filing period beginning January 4, 2027 is for the 2028/29 assessment.

When is the Nassau County ARC filing period?

Nassau County currently lists the filing period for the 2028/29 assessment as January 4, 2027 through March 1, 2027. If you sign up early, no additional action is required after you complete your authorization unless we contact you.

Do you take a percentage of my savings?

No. The service price is a flat $99.

What happens after I pay?

You are immediately directed to a secure digital authorization. Once signed, you receive a copy and confirmation by email.

Do you handle Suffolk County?

Not for the 2027 season at this time. Suffolk informational pages remain available, but active filing service is Nassau County only.

Can I ask you to review my situation before paying?

Yes. Call or text us at (516) 226-0327 before signing up.

One flat fee. One simple process.

Start your Nassau County 2028/29 property tax grievance for $99.

Start now