Nassau County-focused property assessment review

Contact FairValue Tax Appeal

FairValue Tax Appeal helps Nassau County homeowners review their property assessment and prepare data-driven evidence for a potential tax grievance.

Phone

(516) 522-0290

Email

support@fairvaluetax.com

Service Area

Nassau County, Long Island, New York

Consultations

By phone, video, or appointment

Office and meeting policy

We are a remote-first, appointment-based service. Most consultations are handled by phone, email, or video so homeowners can get guidance without needing an in-person office visit.

FairValue Tax does not currently maintain a public walk-in office. If an in-person meeting is needed, it may be arranged by appointment at an appropriate local meeting location.

What we can help with

  • Nassau County residential property assessment review
  • Comparable sales and equity analysis
  • Grievance evidence preparation
  • AROW filing guidance
  • Post-filing review and next-step explanation

Send us a message

Tell us a little about your Nassau County property assessment question, and we will respond by email or phone.

Looking for filing basics? Visit the FAQ.

Important notice

FairValue Tax Appeal provides property assessment analysis and informational support. We are not a law firm, do not provide legal advice, and do not guarantee a tax reduction. Homeowners should verify filing requirements and deadlines with the Nassau County Assessment Review Commission.