Market value estimate AVM
An automated estimate of what your home would sell for today, from an address-level valuation model, so you have a number to weigh the assessment against.
Notice of Assessment Review
Ref One address
Property tax over-assessment check
Your home may be assessed too high, and you are paying for it every year.
Assessors value millions of homes with formulas, and plenty come out above what the house would actually sell for. When the assessment is high, the tax bill is high, year after year, until someone challenges it. The report you get here is the evidence pack you would hand the appeal board: your value gap, the comps, and the filing steps.
- 1An estimate of your home's market value versus its assessed value
- 2The annual property tax you may be overpaying if it is too high
- 3Comparable sales and the evidence to file an appeal yourself
Request review · one address
Check your assessment
$29 · instant PDF · no account
What is in the report
The number, and the evidence to do something about it.
Your assessor already published the assessed value. This report puts it side by side with an independent market estimate and the comparable sales, so you can see the gap and act on it.
01
02
Assessed value on record Assessor
The taxable value the county has on file for your property, the figure your bill is calculated from.
03
Estimated annual overpayment Estimate
If the assessment sits above the market estimate, roughly what that gap is costing you each year at your local tax rate.
04
Comparable sales Comps
Recent sales of similar nearby homes, the core evidence an appeal board expects to see.
05
How to file an appeal Steps
Where appeals are filed in your area, the kind of deadline to watch for, and how to present the comps.
06
What to expect Notes
A straight read of your odds, what an appeal can and cannot do, and when it is worth the effort.
Why it is worth a look
An over-assessment does not fix itself.
Property tax is charged every single year on the assessed value. If that value is too high, you keep overpaying until you challenge it, and a successful appeal can lower the bill for years, not just once. Most homeowners never check, because the number looks official and the process looks daunting. This report hands you both halves: the gap, and the evidence.
The firms that do this for you charge a contingency fee, commonly 25 to 35 percent of your first-year refund, for building the same evidence pack and filing it. On a bill that is often overstated by several hundred dollars a year, a $29 report that puts that evidence in your hands pays for itself many times over, and the whole saving stays yours.
1240 Elm Street, Anytown
Sample · illustrative
3 bd · 2 ba · 1,850 sqftTax rate 1.35%
Assessed value (on record)$412,000
Market value estimate (AVM)$358,000
Over-assessment gap$54,000
Comparable sales found6 nearby
Est. annual overpayment~$729
Illustrative figures. Your real numbers depend on your address, local tax rate, and the comps in your area.
How it works
Address in, appeal-ready report out.
Step 1 · Locate
Enter your address
We pinpoint your specific property, not just your ZIP code or street.
Step 2 · Compare
We pull the numbers
We estimate market value, read your assessed value, gather comps, and work out the gap.
Step 3 · Deliver
You get the PDF
Your gap, estimated overpayment, comps, and a plain-English path to appeal, in seconds.
Questions
Straight answers before you buy.
How accurate is the market value estimate?
It is an automated valuation model (AVM), the same broad approach behind the estimates you see on real-estate sites. It is an estimate, not an appraisal, and it can be off, especially for unusual homes or thin local sales data. We show it as a range and pair it with real comparable sales so you can judge it for yourself. For a formal appeal, some boards prefer a licensed appraisal, and we say so in the report.
Will an appeal actually lower my tax bill?
Sometimes. If your assessment is genuinely above market value and the comps support that, an appeal can reduce the assessed value and therefore the bill, often for several years. But outcomes vary by county, by how your area assesses, and by the evidence you bring. We show you the size of the gap and how strong the comps are, not a guarantee. This report is not legal or tax advice.
Do you file the appeal for me?
No. This is a report and evidence pack, not a filing service. It gives you the gap, the comps, and the steps so you can file the appeal yourself with your county, which most homeowners can do without help. The appeal firms that offer to do it for you typically take 25 to 35 percent of your first-year refund for assembling the same evidence and submitting it. This hands you that evidence for a flat $29, and any saving you win is yours to keep.
Where does the data come from?
The market value estimate comes from an address-level valuation model, and comparable sales and property details come from public and licensed real-estate data. Assessed values and tax rates come from public assessor and tax records where available. We list our sources on the Sources page.
What if my home is assessed correctly?
Then the report tells you that too, and you can stop worrying about it. Knowing your assessment is fair is worth something. If the gap is small or the comps do not support a challenge, we will say the case is weak rather than talk you into a filing that will not go anywhere.
Which areas are covered?
Coverage is best in areas with good public assessor records and sales data, which is most of the US. If we cannot build a meaningful report for your address, contact us and we will refund you.