40.5% of US homes are overassessed. The information to fix it is public — buried in county records, with a process designed to be confusing. We built Fairmark so you don't have to.
County assessors aren't villains. They're overworked offices trying to value millions of properties using imperfect data. The result: 4 in 10 US homes are assessed above their actual market value, and the homeowners paying those inflated taxes have no idea.
The appeal process exists for exactly this reason. But filing means knowing your rights exist, finding the forms, gathering comparable sales data, submitting by an obscure deadline, and sometimes appearing at a hearing. Less than 5% of homeowners who are overassessed actually appeal. The counties know this. The system depends on it.
Fairmark was built to close that gap. Type an address, see your overpayment, authorize us to fix it. $0 today — our fee is 25% of your first-year savings, billed only after the county confirms a reduction. If the county doesn't reduce your assessment, you owe nothing. The information was always there. We just made it accessible.
“Every address is a question: how much is this home really costing the family inside it? We answer that question — and then we fix it.”
— Jacob LePage, Founder
Four principles that shape every decision we make.
It's our Bill-Down Guarantee: we only get paid if your bill actually goes down. Nothing upfront, 25% of first-year tax savings only on confirmed reduction, no auto-renewal. We only get paid when you save money — if we don't deliver, you owe nothing.
We describe what we do, not how we do it. "We check your county's assessment database" — not "our algorithm analyzes your data." You deserve to understand the process.
Most homeowners are 45–65, not tech-savvy, and busy. We build for them — large text, plain language, no jargon, clear next steps. Simple, not dumbed-down.
Every number comes from a real source: county assessment records and public property data. We don't estimate. We check and we cite.
Most of our users are homeowners 45–65 with homes valued between $250,000 and $2 million. Many have lived in their homes for years and have never thought to check whether they're being fairly assessed. They're not financially unsophisticated — they're just busy, and this isn't a process that announces itself.
74% of homeowners say they worry about property taxes, but only 5% have ever appealed. 53% don't know appeals are even possible. We built for them.
We also serve real estate investors checking properties before purchase, landlords managing multiple units, and recent buyers who want to verify their assessment reflects the actual sale price.
Free analysis. No account needed. We file appeals in New York — Westchester County.