Your Tennessee property tax bill comes from three numbers multiplied together. Understanding them shows you exactly where an appeal can help.
1. Appraised value
The county Assessor estimates your property's market value — what it would sell for. In a reappraisal year, this is set using mass appraisal models across your whole area.
2. Assessment ratio
Tennessee taxes only a percentage of appraised value, set by property class:
- Residential and farm: 25%
- Commercial and industrial: 40%
- Personal property: 30%
So a home appraised at $400,000 has an assessed value of $100,000.
3. Tax rate
The county (and city) set a rate per $100 of assessed value. If the combined rate is $3.00 per $100, the tax on $100,000 of assessed value is $3,000.
Where an appeal helps
An appeal targets the appraised value — the only one of the three you can challenge. Lower the appraised value and the assessed value falls with it, which lowers the bill at whatever the rate happens to be. That's why an over-appraisal costs you every year until it's corrected.
This is general information, not legal or tax advice.