Every year, thousands of Tennessee homeowners overpay on their property taxes simply because they don't know they can challenge their assessment—or they don't know how. This guide walks you through everything you need to know about appealing your property taxes in Tennessee.
Understanding Property Tax Appeals
Property taxes in Tennessee are based on the assessed value of your property. Each county's Property Assessor determines this value using mass appraisal techniques—statistical models that estimate property values across entire neighborhoods.
The problem? These models can miss important details about individual properties. Your home might have:
- Deferred maintenance or condition issues
- Negative location factors (traffic noise, commercial neighbors)
- Functional obsolescence (outdated layout, small bedrooms)
- Errors in the property record (wrong square footage, features you don't have)
A property tax appeal is your legal right to challenge the assessed value and present evidence that your property is worth less than the county believes.
📊 How Tennessee Calculates Property Taxes
Your property tax = Assessed Value × Tax Rate. For residential property, the assessed value is 25% of the appraised value. So if your home is appraised at $400,000, your assessed value is $100,000. Multiply that by your county's tax rate to get your annual property tax.
Who Should Appeal?
Not every property owner should file an appeal. You're a good candidate if:
Your Assessment Increased Significantly
If your assessment jumped 20%, 30%, or more during the last reappraisal, it's worth investigating whether that increase is justified by actual market conditions.
Comparable Homes Sold for Less
Look at recent sales in your neighborhood. If similar homes are selling for less than your assessed value, you likely have a case.
There Are Errors in Your Property Record
Check your property card with the assessor's office. Errors in square footage, lot size, number of bathrooms, or property features can inflate your assessment.
Your Property Has Issues
Condition problems, functional issues, or negative external factors that the mass appraisal missed could justify a lower value.
💡 Quick Check
Want to know if your property might be over-assessed? Get a free evaluation and we'll analyze your property against recent sales data.
The Informal Review Process
Tennessee's property tax appeal process begins with an informal review—your first and often most effective opportunity to get your assessment reduced.
What Is an Informal Review?
The informal review is a paper-based process where you submit evidence to the county assessor's office showing why your property should be valued lower. There's no hearing required—the assessor reviews your materials and makes a decision.
When Can You File?
Each county assessor sets its own dates. Davidson County takes requests from January to mid-April. Shelby County takes them all year. Knox County takes them only in a reappraisal year.
See the appeal dates for every Tennessee county. For Nashville, see Davidson County property tax.
How to File
- Contact your county assessor's office or visit their website
- Request an informal review (some counties have online forms)
- Submit your evidence packet
- Wait for the decision (typically 4-8 weeks)
What Happens Next?
If your informal review is successful, your assessed value is reduced and you'll see lower taxes on your next bill. If denied, you can proceed to the formal appeal process.
Formal Appeals
If the informal review doesn't resolve your case, you can file a formal appeal with the County Board of Equalization.
County Board of Equalization
This is a hearing before a local board where you (or your representative) present evidence and argue for a lower value. The county typically sends a representative to defend the current assessment.
State Board of Equalization
If you disagree with the County Board's decision, you can appeal to the State Board of Equalization. This is a more formal process with stricter evidence rules.
⚠️ Formal Appeals Take Time
Formal appeals can take 6-12 months to resolve and may require attending hearings. That's why it's important to build a strong case during the informal review—most successful appeals are resolved at that stage.
Building Your Evidence
The strength of your appeal depends entirely on your evidence. Here's what works:
Comparable Sales (Most Important)
Find 3-5 recent sales of properties similar to yours that sold for less than your assessed value. Good comparables are:
- Similar size: Within 10-20% of your square footage
- Similar age: Built around the same time
- Similar location: Same neighborhood or comparable area
- Recent: Sold within the past 6-12 months
- Arms-length: Normal market transactions, not foreclosures or family sales
Property Record Errors
Get your property record card from the assessor and check every detail. Common errors include:
- Wrong square footage
- Incorrect lot size
- Features listed that you don't have (e.g., basement, pool)
- Wrong year built
- Incorrect number of bedrooms/bathrooms
Condition Documentation
If your property has condition issues, document them with photos:
- Deferred maintenance
- Foundation problems
- Roof issues
- Outdated systems
- Flood damage history
Negative External Factors
Some location factors reduce value but aren't captured in mass appraisals:
- Adjacent to commercial property
- Traffic noise or busy roads
- Power lines or cell towers
- Flood zone location
- Railroad tracks nearby
What the Assessor Accepts
The assessor wants proof that can be checked. These count:
- Sale records from the county assessor or the register of deeds
- Sales data from a licensed real estate agent
- Your property record card, with each error marked
- Dated photos of problems with the home
- Written repair estimates from a contractor
- A report from a licensed appraiser
- A FEMA flood map, if the home is in a flood zone
- Your closing statement, if you bought the home for less than its appraised value
These do not count:
- A price estimate from a website
- A foreclosure, a short sale or a sale between family members
- Sales from another neighborhood, or of a different kind of property
- Sales more than 12 to 18 months old
- A complaint about the tax rate. The assessor sets the value and does not set the rate.
For each comparable sale, include the sale record, the home's details and one sentence on why it compares with your home. See how to find comparable sales.
You do not need to pay for an appraisal. If you already have one from a purchase or a refinance, and it shows a lower value, include it.
Checklist Before You File
- Get your property record card from the assessor and check every detail.
- Find three to five comparable sales below your appraised value.
- Write down each error in the record, with proof.
- Take dated photos of any problems, and get repair estimates for the large ones.
- Put a one-page summary on top, then your strongest evidence.
- Keep a copy of everything you send, and save the confirmation.
Allow three to four weeks to prepare, and plan on four to eight hours of work. File at least a week before the last day. In an informal review you usually cannot add evidence after you file.
Common Mistakes to Avoid
- Missing the deadline: The informal review window is limited. Mark your calendar.
- Arguing about taxes, not value: The assessor sets value, not tax rates. Focus on why your property value is wrong.
- Using poor comparables: Foreclosures, short sales, or properties very different from yours won't help.
- Incomplete submissions: Submit all your evidence upfront. You may not get another chance.
- Emotional arguments: "My taxes are too high" isn't evidence. Stick to data.
- Waiting too long: Start gathering evidence before the review window opens.
DIY vs. Professional Help
You can absolutely file a property tax appeal yourself. However, consider professional help if:
- Your time is valuable and you'd rather not spend hours researching
- You want to maximize your chances of success
- Your property value is high enough that savings would be significant
- You're not comfortable gathering and presenting evidence
Next Steps
Ready to appeal your property taxes? Here's what to do:
- Check your assessment: Review your current assessed value and property record card
- Research comparables: Look at recent sales in your area
- Know your deadlines: Find out when your county's informal review window opens
- Decide on approach: DIY or get professional help
- File your appeal: Submit your evidence during the review window
Not sure if your property qualifies? Get a free evaluation to see your potential savings and whether an appeal makes sense for your situation.