🏠
Your property may be over-assessed
Compare your assessment to comparable homes
18%
Over-Assessed
🏠
Your Assessment
$385K
Current assessed value
📈
Fair Estimate
$325K
Based on comparable homes
💰
Annual Overpayment
$780
What you could save per year
📅
5-Year Savings
$3,900
If appeal is successful
🎯 The Verdict
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🏠 Your Property
Enter your tax assessment details
📊 Assessment Comparison
Your value vs comparable homes
📈
Comparable Property Analysis
How your assessment stacks up against similar homes
⚖️
Appeal ROI Calculator
Is filing an appeal worth the time and money?
📅
5-Year Tax Projection
What you'll pay vs what you could pay after a successful appeal
Assessment vs Comps
Tax Allocation
5-Year Cumulative Savings
Appeal Cost vs Savings
Property Tax Analysis Report
Vault & Vessel Studio ·
📖
How To Use
Find out if you're overpaying property taxes and whether an appeal makes sense
🚀 Getting Started
1
Enter Your Assessment
Find your assessed value on your property tax bill or county assessor website. Enter it along with your local tax rate (usually 0.5%-3%).
2
Add Comparable Homes
Find 3 similar homes nearby (same size, beds, baths, age). Use Zillow, Redfin, or your county assessor's database for recent sale prices.
3
See If You're Overpaying
The calculator compares your assessment to the average of your comps. If yours is significantly higher, you have a case for appeal.
4
Calculate Appeal ROI
See how much you'd save per year, over 5 years, and whether the filing fee + time investment is worth the potential savings.
📊 Terms Made Simple
Assessed Value: What your county says your home is worth for tax purposes. This is NOT necessarily the market value — it can be lower or higher depending on when you were last assessed.
Mill Rate / Tax Rate: The amount of tax per dollar of assessed value. A rate of 1.3% means you pay $1.30 for every $100 of assessed value. This varies widely by location.
Comparable Properties (Comps): Similar homes near yours — same size, bedrooms, bathrooms, age, and condition. Their sale prices or assessed values are the strongest evidence in a tax appeal.
Tax Appeal: A formal request to your county to reassess your property value. If successful, your assessed value drops and your annual tax bill decreases. Most appeals are free or have a small filing fee.
🔒 Your Data, Your Device
No subscription · Runs in your browser · Private local file
No data uploaded anywhere · Works 100% offline — no internet needed
No data uploaded anywhere · Works 100% offline — no internet needed
⚠️ This is a directional estimate, not legal or tax advice. Actual savings depend on your county's appeal process and outcome. Consult a tax professional for formal appeals.