AI-Powered Property Tax Appeal
Your County Assessed Your Home.
We Check Their Math.
ProtestMax analyzes comparable properties, builds your appeal case, and prepares every document you need — in under 2 minutes.
County Says
$487,000
AI Engine
$000,000
We Found
$421,000
$0
To See If You Have a Case
2
Independent Analysis Methods
A–F
Evidence Grade Before You Pay
$1K–$3K
Typical Annual Savings*
*National Taxpayers Union Foundation. Estimated — individual results vary.
How We Build Your Case
We Show Our Work
Most services hand you a packet and say “trust us.” We show you exactly what data we used, how we analyzed it, and why we reached our conclusion.
Data Sources
County Assessor Records
Your official assessed value, property details, and tax history
ATTOM Property Data
Nationwide sale records, assessments, and property characteristics
MLS & Public Sales
Recent comparable sales with prices, dates, and property details
County-Specific APIs
NYC DOF, Cook County, King County, and others — direct from the source
Two Independent Analysis Methods
Market Value Analysis
Method 1
We find 5–10 recent comparable sales near your property, then apply professional adjustment standards for differences in size, age, condition, and location. If the adjusted comps indicate a market value below your assessed value, you have a case.
Your assessed: $285,000
Comp-indicated value: $241,000
Over-assessed by: 15.4%
Unequal Appraisal Analysis
Method 2
We compare your assessed value per square foot to similar properties nearby. If your rate is higher than your peers, that's unequal treatment — and a separate legal basis for reduction, even if the market value is close.
Your assessed $/sqft: $142
Peer median $/sqft: $118
Above peers by: 20.3%
Transparent Evidence Grading
Before you pay, we grade the strength of your case. The grade reflects how much data supports a reduction — not a sales pitch.
A
Strong case
B
Good case
C
Possible case
D
More evidence needed
F
Looks fair — we won’t charge you
How We Compare
Know What You're Getting
Not all property tax services are the same. Here's an honest look at the options.
Free analysis before you pay
See your grade and savings estimate — $0
Evidence grade (A–F)
Know your case strength before spending a dollar
Dual method analysis
Market value + unequal appraisal — two arguments, not one
Hearing preparation script
Word-for-word talking points for your county hearing
Weekly monitoring
Free forever — we alert you when your assessment changes
$45 flat, you keep 100%
No percentage of savings. No recurring fees. Ever.
Other flat-fee services charge $49–$150 but don't show your case strength first. Contingency services take 25–35% of your savings every year.
How It Works
Three Steps to Challenge Your Assessment
Enter Your Address
We pull your current assessment and property data automatically from public records.
AI Finds Comparable Properties
Our engine analyzes recently sold homes, applies professional adjustment standards, and calculates whether you're over-assessed.
Get Your Appeal Documents
Download a professionally prepared appeal package — protest letter, evidence grid, county filing guide, hearing script. You file. You keep 100% of any savings.
What Makes Us Different
Not Just Another Forms Generator
Real valuation engine (not pass-through of county's own number)
We independently calculate your home's market value using comparable sales and professional adjustment standards.
Dual method: market value + unequal appraisal
Two separate arguments for a reduction — most services only use one.
Honest "no case" verdict (no charge if assessment appears fair)
If the data doesn't support an appeal, we say so. We'd rather build trust than take $45 for a weak case.
Evidence grade (A–F) with transparent methodology
See exactly how strong your case is and why, before you pay.
Hearing script + ARB preparation guide
If your county schedules a hearing, you get word-for-word talking points — not just a letter.
Weekly assessment monitoring (free, forever)
We check your property against county records every week. If your assessed value changes, you get an email alert with the new number and whether it's worth re-filing. Others charge you again. We don't.
Your Appeal Package
What You Get for $45
Everything a property tax consultant uses to build your case — prepared by AI in minutes, not weeks.
Comparable Sales Evidence
5–10 recent sales near your property with prices, distances, and adjustments. The same data professional consultants use.
County Filing Guide
Your exact deadline, the forms you need, and where to send them. Written for your specific county.
Appeal Letter + Hearing Script
Pre-written appeal letter ready to sign. If they schedule a hearing, you get word-for-word talking points.
Assessment Monitoring (Free)
We check your property against county records weekly. If your assessed value changes, you get an email alert with the new number and whether it's worth re-filing.
Simple Pricing
$45 Flat. You Keep 100%.
Contingency services take 25–35% of your savings every year. ProtestMax charges $45 once. You do the math.
Contingency services charge 25–35% of your savingsevery year. On a $2,000 reduction, that's $500–$700 to them. With ProtestMax: $45 once. You keep $1,955.
Savings estimates are illustrative — individual results vary and are not guaranteed.
Common Concerns
Three Things That Stop
Homeowners From Saving
“I don't want my taxes to go UP”
In most states, filing an appeal cannot increase your assessed value. Worst case: nothing changes. In the few states where an upward adjustment is possible (GA, WA), we show a clear warning and only recommend filing with strong evidence.
“It's too complicated / I don't have time”
Enter your address, pay $45, download your appeal package. Under 10 minutes from start to finish. We handle the research, the forms, and the strategy.
“Is it even worth it for my property?”
The average successful appeal may save $1,500/year. Over 5 years, that could be $7,500. For $45. Check free — we'll tell you honestly if it's worth appealing.
Who We Are
Built by Ownerly
ProtestMax is built by Ownerly, an AI-powered real estate platform. We believe homeowners shouldn't overpay — whether buying, selling, or paying property taxes.
Coming soon from Ownerly
Agents take $20,000+ to sell your home.
Keep it.
Ownerly handles everything — listing, marketing, negotiations, closing — with AI instead of an agent. No 5–6% commission. You keep it all.
Early access is limited to 500 homeowners:
- ✓ $0 commission — not 5%, not 1%. Zero.
- ✓ $0 listing fee — waived for founding members
- ✓ Founding pricing, locked forever
Not selling today? Lock in your spot now — you'll want it later.
127 of 500 spots claimed
FAQ
Questions & Legal Clarity
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. A $1,500 annual over-assessment could cost you $7,500 over five years.
Source: National Taxpayers Union Foundation. Estimates are illustrative — individual results vary.