📅 Appeal season is open — deadlines vary by state. Check yours now.
Property tax appeals
89% of homeowners win their appeal with the right evidence.
But less than 5% ever try.
We build your full appeal to cut your bill for years.
89% of homeowners who protested won a reduction*
Join 27,782+ homeowners
who stopped overpaying on property taxes
$2,061
Avg. annual savings*
$172/mo back in your pocket
89.92%
Win rate†
Nearly every appeal succeeds
$49
Flat fee, keep 100%
No percentage. Ever.
How it works
Enter your address
We research your property and build what you need to appeal
Get all you need
Comparable sales analysis, filing guide, and cover letter. Delivered in minutes.
File and save
Submit to your county and keep 100% of your tax savings
Why appeals work
Counties use mass appraisal — a formula applied to thousands of properties at once. Errors are inevitable. According to the National Taxpayers Union Foundation, 30–60% of residential properties are overassessed.
Your assessment is just an estimate. State law gives you the right to challenge it with evidence.
Most homeowners never check — they assume the county got it right. Research from the International Association of Assessing Officers shows fewer than 5% ever file an appeal. That's why overassessments persist year after year.
The fix is simple: show comparable sales that prove a lower value. If the data supports it, the county adjusts.
Real Result — Harris County, Texas
Before Appeal
After Appeal
Error Found: County overstated square footage by 290 sq ft
One measurement error. One corrected record. Thousands in savings.
Here's what you receive
Three professional documents, ready to file.
Filing Guide
- Your exact deadline and what to file
- Required forms identified
- Step-by-step filing process
Evidence Packet
- Comparable sales analysis
- Assessment discrepancy calculation
- Maps and market data
Cover Letter
- Pre-written appeal letter
- Hearing talking points
- Ready to sign and submit
Our research team pulls the comps, verifies your deadline, and prepares all three documents — delivered within minutes.
Ready to see if you're overpaying?
Check My Property →See exactly what you're getting
Every packet is customized for your property, county, and deadline.
This is what you'll submit to your county.
Homeowners are saving thousands
Real results from real property tax appeals.
What ChatGPT Recommends
Swipe to see more →
Three things that stop homeowners from filing
None of them should.
“What if my taxes go UP?”
They won't. In the vast majority of states, an appeal can only lower your assessment or leave it unchanged. The assessor reviews only what you challenge — they can't raise it as a result of your appeal.
“Will I have to go to a hearing?”
Almost certainly not. 97% of appeals are resolved by mail or informal review — no hearings, no courtrooms, no face-to-face confrontation. You submit your evidence, the county reviews it, and you get a decision.
“Is this actually worth $49?”
Tax consultants charge $300–$500 for the same analysis. Ownwell takes 25–35% of your savings every year. AppealDesk is a flat $49 — you keep 100% of every dollar saved. Even a modest reduction pays for itself 10× over.
Who Built This
Rob Hartley
Founder
After twenty years as a financial analyst, I'm used to spotting when numbers don't add up. My county assessed my home at $87,000 more than comparable sales in my neighborhood. I pulled the data, built the evidence, and won my appeal. $1,400 a year back in my pocket.
I built AppealDesk so you don't have to spend three weeks doing what I did. Comparable sales analysis, filing instructions, cover letter. Ready in minutes. $49.
— Rob Hartley
Real results from real counties
| County | Success Rate | Avg Savings | Year |
|---|---|---|---|
| Hays County, TX | 98.68% | $957/yr | 2023 |
| Harris County, TX | 89.2% | $2,061/yr | 2023–24 |
| Cook County, IL (BOR) | 62% | Varies | 2023 |
| San Mateo, CA | 97% settle | Varies | 2023 |
| National average | ~60% | $539–$1,346/yr | 2023–24 |
Sources: Hays County CAD annual report, Harris County Appraisal District data via O'Connor (2024), Cook County Assessor annual report, San Mateo County Assessment Appeals Board. National average: Sanguine Strategic Advisors.
This decision compounds
Based on Harris County, TX avg. savings of $2,061/yr (2023). A successful appeal resets your tax bill until the county reassesses — typically 1–3 years.
Year 1
$2,061
saved
Year 2
$4,122
total saved
Year 3
$6,183
total saved
126× return on $49
What others charge for the same thing
$300–$500
Tax consultants
25–35%
of your savings, every year
$49
One time. Keep 100%.
Savings recur annually until reassessment — typically 1–3 years.
Compare your options
Three ways to appeal. Only one lets you keep everything you save.
Do It Yourself
Free
- You keep 100%
- 10–20 hours of research
- Find your own comps
- Figure out filing process
- No professional formatting
AppealDesk
$49 one time
- You keep 100%
- Ready in minutes
- Professional comp analysis
- County-specific filing guide
- Pre-written cover letter
OwnWell & Others
25–35% of savings
- They keep 25–35% of your savings
- They file for you
- Fee charged every year
- $500+ on a $2,000 reduction
- More you save, more they take
On a $2,061 annual savings, a 25% contingency service costs you $515 every year. AppealDesk costs $49 once.
Frequently asked questions
What do I actually get?
A complete appeal packet: comparable sales analysis, county-specific filing instructions, and a pre-written cover letter. Just enter your property address and everything is delivered to your email within minutes.
What if my property isn't overassessed?
We'll tell you. If our analysis shows you're assessed at or below market value, we'll explain why and recommend against filing. You still receive the full analysis so you understand your property's position.
What if I lose my appeal?
Nothing happens. Your assessment stays the same. There's no penalty for filing, and your taxes cannot be raised as a result of your appeal. The only risk is the time it takes to file.
Do I need a lawyer or consultant?
No. Property tax appeals are designed for homeowners to file themselves. Your packet includes step-by-step instructions written for your specific county. Most appeals are resolved without a formal hearing.
How much can I save?
It varies by property and county. National data shows successful appellants save between $539 and $1,346 per year on average. Some save significantly more, especially on higher-value properties.
Do you take a percentage of my savings?
No. You pay $49 once and keep 100% of any tax reduction you receive. We never take a cut of your savings, and there are no recurring fees.
This is the year you stop overpaying.
Every year you don’t appeal, you lock in an inflated baseline. The cost of waiting isn’t $0 — it’s every dollar you’ve already overpaid.
If your home is fairly assessed, we'll tell you — and you still receive your full Property Tax Analysis with exemption opportunities. $49 always gets you something.
How Much Are You Overpaying Because Your County Got Your Home Value Wrong?
Last year, the average successful AppealDesk customer reduced their property tax bill by $1,523 per year.
Not through a loophole. Not through a temporary credit. Not through a one-time discount.
By challenging an assessment that was too high.
That is $7,615 over 5 years. $15,230 over 10 years. All from a property tax appeal most homeowners can start in under 30 minutes.
So before you pay another tax bill based on your county's number, ask yourself: What if that number is wrong?
Because when a county overvalues your home, the overcharge rarely fixes itself. It repeats. Year after year. Until someone challenges it.
Proof This Works
Harris County, Texas Homeowner
2024 Assessment: $519,750
After Appeal: $485,000
Error Found: County showed 3,200 sq ft. Home actually measured 2,910 sq ft.
Annual Tax Savings: ~$1,500
One measurement error. One corrected record. Thousands in savings year after year.
Why Property Tax Assessments Go Wrong
Your county has to value thousands of properties. Sometimes hundreds of thousands. Every year. On deadline.
They cannot inspect every home in detail. They cannot verify every square foot figure, bedroom count, condition issue, renovation, or market change.
So they estimate. They use computer models, public records, drive-by observations, neighborhood averages, and assumptions to produce your assessment.
That is efficient for them. But those assumptions can cost you money.
- They assume your 1,850 sq ft home is 2,200 sq ft because the record says so
- They value your 25-year-old roof like it is new
- They use sales from the newer section with the golf course
- They count a converted garage as a true fourth bedroom
- They ignore the busy road, drainage issue, or condition problem affecting your value
Result: You pay taxes on phantom value - value that exists in their database, not in reality.
What Actually Wins Appeals
After analyzing over 10,000 appeals, the pattern is clear: Winning is not about frustration. It is about evidence.
The strongest appeals usually come down to four things:
1. Better Comparable Sales
Not estimates. Not opinions. Actual closed sales of truly similar properties, selected and presented the right way.
2. Record Errors
Wrong square footage. Wrong features. Wrong condition assumptions. Wrong property details. Small database errors can create large annual overcharges.
3. Timing Problems
Counties can rely on stale or poorly matched sales data. When the market shifts, assessments do not always keep up.
4. Real-World Condition
Many assessments assume average condition. But average condition is not your aging roof, original HVAC, foundation issue, outdated interior, or location disadvantage.
What Property Tax Professionals Know
The consultants who charge hundreds or thousands for appeals are not using magic. They use a repeatable process.
They know which comparables counties accept. They know how to document errors. They know how to present evidence in the language counties respond to. And they know weak evidence gets ignored.
AppealDesk helps you do the same work faster, with a structured, county-ready package.
What You Get for $49
AppealDesk helps you determine whether there is a credible basis to challenge your assessment and, if there is, helps you act on it faster and more professionally.
In minutes, you receive:
- Typically 10-20 comparable property analyses
- A review of factual errors in the property record
- A market timing evaluation
- County-specific forms populated with your data
- A professional evidence packet
- Step-by-step filing instructions
A traditional consultant may charge hundreds or thousands to review your assessment and prepare this groundwork. AppealDesk gives you a professional-grade starting point for $49.
For less than a tank of gas, you can find out whether you may be overpaying - and if so, get the materials to do something about it.
What We Will Not Pretend
We cannot change your tax rate. We cannot reduce taxes if your assessment is already fair. We cannot guarantee every appeal wins. We cannot make the county decide instantly. We cannot create evidence where none exists.
What we can do is help you find out whether your county's number holds up under scrutiny.
That is valuable either way. If your assessment is fair, you get clarity. If it is inflated, you may have a real opportunity to reduce a bill that keeps coming back every year.
Every Year You Wait Can Cost You
Property tax appeals are tied to filing windows. Miss the deadline, and you may be stuck paying the current assessment for another full cycle.
If your home is overassessed, waiting can mean another year of paying more than necessary.
Your county already decided what your home is worth. The only question is whether that number deserves to stand.
Check Your Property Now
For $49, AppealDesk analyzes your assessment and builds your evidence packet in minutes.
If your assessment is fair, you get clarity. If it is inflated, you get a structured way to challenge it before the deadline passes.
Check My Property Now →Based on AppealDesk customer results from 2019-2025. Individual results vary by assessment accuracy and local conditions. Average savings reflects successful appeals only.