What goes in a property tax appeal evidence packet?

A property tax appeal evidence packet is the organized set of documents you submit and present to support a lower value. Boards reward clarity, so lead with a one-page summary and put the supporting proof behind it.

Build the packet in this order:

• Cover summary (1 page): your account/parcel number, the assessor's value, your opinion of value, and the single sentence that says why — e.g., "recent comparable sales support $X" or "my home is taxed higher than equivalent neighbors."
• Comparable sales grid: 3–5 recent, nearby, similar sales adjusted for differences in size, age, condition, and lot. The IAAO Standard on Mass Appraisal of Real Property describes the sales-comparison approach used by assessors — mirroring their method makes your grid harder to dismiss.
• Equity / unequal-appraisal evidence (where allowed): assessments of comparable neighboring properties showing yours is valued higher per square foot. Texas expressly allows this argument under Tex. Tax Code §41.43(b)(3).
• Property record card with errors flagged: highlight any wrong square footage, bedroom/bath count, or lot size — factual errors are among the easiest wins.
• Condition evidence: dated photos of defects, contractor repair estimates, inspection reports, and a recent independent appraisal if you have one.
• Closing and notice documents: your purchase settlement statement (if recent), the assessor's notice of value, and your filed appeal form.

Format for the board. Number the exhibits, label every comp, and keep it concise — most hearings are short. Many jurisdictions let (or require) you to exchange evidence in advance: Texas, for example, lets owners submit an affidavit of evidence under Form 50-283, and several states impose an evidence-exchange deadline before the hearing. Check your county's rule and bring enough copies for each board member plus the appraiser.

Avoid weak evidence: emotional appeals, your tax bill being "too high," or unadjusted asking prices rarely move a board — stick to adjusted, verifiable facts.