Your property tax assessment can be appealed. We build the packet — you file it.
FairAppealPacket turns your assessment notice into a pre-filled, evidence-backed appeal packet for your home, your rental buildings, or your commercial property — in every state. You review it, sign it, and file it yourself. That is what makes nationwide possible, and honest.
30–60% over-assessed
The National Taxpayers Union Foundation estimate, relayed in industry sources: 30–60% of US properties may be over-assessed, yet fewer than 5% of owners ever appeal. It is an estimate, not a census — treat it as the size of the problem, not a promise about your property.
$539 median flagged saving
Realtor.com's 2025 Property Tax Report found 40.5% of properties could benefit from a lower assessment, with a median flagged saving of $539 a year. Your number depends on your property and your county.
What public data shows
In Cook County's published tax-year 2025 Board of Review data, 20.5% of multifamily (7+ unit) appeals and 27.6% of commercial appeals received a reduction, with median cuts of 14.7% and 16.1%. Vendor headlines of 86–88% success do not match public county data — we publish the county numbers.
One engine, three kinds of property
Homes
A packet built on comparable sales and uniformity: how similar homes sold, and whether your assessment per square foot is out of line with your street.
Residential packetMultifamily & rentals
For 2–6 unit buildings and portfolios, the packet argues on income — your actual rent roll and expenses, not the county's assumptions.
Multifamily packetCommercial
An income-approach worksheet — NOI divided by a supported cap rate — with the evidence checklist boards actually ask for, priced flat by assessed value.
Commercial packetWhy owners do not appeal — and why a packet fixes it
Ownwell's 2026 homeowner survey (2,500 homeowners, the company's own survey) found 74% had never appealed, and 57% of those did not know they could. The windows are short — 25 days in Florida, 45 in Georgia, in the rules we have sourced — and an informal review does not extend your formal deadline. The work that wins is assembling the right evidence in the right form before that window closes. That assembly is the product.
What we are, and what we are not
Software, not representation. FairAppealPacket is not a law firm, a licensed appraiser, or a licensed property-tax consultant. We do not file, appear, or negotiate for you. You review, sign, and file your own appeal. No result is guaranteed. In a few places the law reserves representation to attorneys or licensed consultants — Cook County, for example, requires an LLC or corporation to appear through an attorney. Our packets are built to be filed by you, or handed to your attorney as organised evidence.
See what your deadline and your numbers say
The check is free and uses your own numbers — no score invented from data we do not have. If your worksheet shows no indicated saving, we will tell you not to buy a packet.