Property Tax Appeal Exhibit Guide
A practical guide to organizing comparable sales, property condition evidence, and appraisal data for tax board hearings.
Free Property Tax Appeal Exhibit Guide
Enter your email to download
Already have an exhibit to label?
Label Your ExhibitsImportant: This guide is an informational resource prepared to the best of our knowledge and does not constitute legal advice for your specific situation. You remain responsible for all due diligence and ensuring that your filings conform to applicable court rules. For legal advice about your specific case, consult with a licensed attorney or your local court's self-help center.
Property tax appeals challenge the assessed value of your property, not the tax rate. The 14th Amendment's Equal Protection Clause requires assessment uniformity -- your property should be assessed consistently with similar properties nearby. Most successful appeals use comparable sales data to show that the assessed value exceeds fair market value. Filing deadlines are strict and vary by state: New Jersey allows 45 days from tax list finalization (N.J.S.A. 54:3-21), Texas permits protests until May 15 or within 30 days of the notice (Property Tax Code section 41.41). Miss the window and you wait a full year. This guide covers the evidence tax boards want to see and how to present it.
Document Checklist
Assessment documents
- Tax assessment notice
The official notice showing your current assessed value
- Property record card
The assessor's record of your property -- check for errors in square footage, room count, or condition
- Prior year assessments
3 to 5 years of assessment history to show the trend
- Assessment ratio data
Your jurisdiction's ratio of assessed value to market value
Comparable sales evidence
- Comparable sale 1
Most similar property: address, sale date, price, square footage, lot size, and condition
- Comparable sale 2
Second comparable with the same level of detail
- Comparable sale 3
Third comparable -- three is the minimum for a strong case
- Additional comparables
Two more if available. More data points strengthen your position.
- Comparison chart
Side-by-side table of your property vs. each comparable with adjustments noted
- Proximity map
Map showing where each comparable is located relative to your property
Property condition evidence
- Exterior photos
Current condition of roof, siding, foundation, landscaping, and driveway
- Interior photos
Kitchens, bathrooms, and mechanical systems -- especially if outdated or in poor condition
- Repair estimates
Licensed contractor estimates for deferred maintenance or needed repairs
- Inspection reports
Home inspection findings or building code violation notices
- Environmental documentation
Flood zone designation, contamination reports, or easement restrictions
Professional opinions
- Independent appraisal
Licensed appraiser's opinion of market value -- the strongest single piece of evidence
- Comparative market analysis
Real estate agent's CMA showing current market value based on recent sales
- Expert opinion letters
Letters addressing specific value-reducing issues like contamination or structural problems
Common Mistakes to Avoid
- 1Using comparable sales from different neighborhoods or school districts -- location is the biggest factor in value
- 2Arguing about the tax rate instead of the assessed value -- tax boards only control assessments, not rates
- 3Missing the filing deadline, which is often 30 to 45 days from the assessment notice with no extensions
- 4Comparing your property to listings (asking prices) instead of actual closed sales
- 5Not adjusting comparables for differences in size, condition, lot size, or features
Organization Tips
- Lead with your strongest comparable -- the one most similar to your property that sold for less than your assessment
- Create a one-page comparison chart showing your property vs. each comparable (size, lot, age, condition, sale price)
- Include a map showing where each comparable sits relative to your property
- Put photos side by side: your property's condition issues vs. the comparables' condition at time of sale
- If you have an independent appraisal, put it first. It carries the most weight with most tax boards.
- Check the assessor's property record card for errors. Mistakes in square footage or room count are common and can inflate your assessment.
Courtroom Preparation
- Tax board hearings are typically 15 to 20 minutes. Get to your best evidence immediately.
- Know your assessed value and be able to state specifically why it exceeds fair market value
- The board will compare your data to their own comparables -- be ready to explain why yours are better matches
- If the assessor made a factual error (wrong square footage, missed a condition issue), lead with that
- Be polite and factual. Board members hear hundreds of appeals per session and organized evidence gets their attention.
- Some jurisdictions let you submit evidence in advance. If yours does, take advantage -- board members review it beforehand.
- If you lose, most states allow a second appeal to a tax court. Keep your exhibits organized for that possibility.
Frequently Asked Questions
What is the deadline to file a property tax appeal?
Deadlines are strict and vary by state. New Jersey allows 45 days from tax list finalization, typically April 1 (N.J.S.A. 54:3-21). Texas permits protests until May 15 or within 30 days of the assessment notice, whichever is later (Property Tax Code section 41.41). Most states give 30 to 90 days from when the assessment notice is mailed. Check your local deadline -- missing it means waiting until the next assessment year.
What makes a strong comparable sale for a tax appeal?
The best comparables are recent sales (within 6 to 12 months) of similar properties within a half-mile of yours. Match on square footage, lot size, age, condition, and school district. The closer the match on these factors, the more weight the tax board gives the sale. Three strong comparables that clearly show your assessment exceeds market value are better than ten weak ones.
Is it worth getting an independent appraisal?
An independent appraisal from a licensed appraiser is the strongest evidence at a tax board hearing. It typically costs $300 to $500 for a residential property. If your assessment is several thousand dollars above market value, the appraisal often pays for itself in the first year of reduced taxes through lower property tax bills.
Can I appeal if my property value went down but my assessment stayed the same?
Yes. If market conditions reduced your property's value but the assessor did not adjust the assessment to match, that is exactly the kind of case tax boards are designed to hear. Use recent comparable sales showing lower market values to demonstrate the gap between your assessment and current fair market value.
What if the assessor has wrong information about my property?
Factual errors on the property record card are among the easiest appeals to win. Common mistakes include wrong square footage, incorrect room count, listing a finished basement as living space when it is not, or missing a condition issue. Get a copy of the property record card from the assessor's office, compare it to reality, and document the discrepancies with measurements and photos.
See It in Action
Watch how easy it is to add exhibit labels to your documents—no legal experience required.

Ready to Label Your Exhibits?
Once you've gathered your documents, use ExhibitPrep to add professional exhibit labels in minutes. Preview free—pay only when you're ready to download.
Related Resources
HOA Dispute Guide
Related homeowner exhibit preparation
Property Tax Appeal Exhibit Stamping
Stamp exhibits for tax board hearings
Property Tax Appeal Checklist
Downloadable tax appeal document checklist
Trial Binder Mode
Create organized binders with table of contents
All Pro Se Guides
Browse guides for all case types
Exhibit Numbering Guide
How to number documents for court
ExhibitPrep Tool
Add exhibit labels to your PDFs