Texas Protest Guide
What Is Unequal Appraisal in Texas?
Unequal appraisal under Texas Property Tax Code § 41.43 is one of the most powerful — and often overlooked — grounds for protesting your property tax assessment. This guide explains how it works, why it matters, and how to build a case using it.
The Legal Basis: § 41.43
Section 41.43 of the Texas Property Tax Code allows homeowners to protest their appraised value on the basis that it is "unequal" — meaning their property is assessed at a disproportionately high rate compared to comparable properties in the same appraisal district.
In practical terms, this means comparing the improvement value per square foot of your property against similar properties nearby. If your county appraisal district assessed your improvements at $150 per square foot, but comparable homes in your area are assessed at $120 to $135 per square foot, you have a strong argument that your assessment is inequitable — even if your market value is accurate.
This is the key distinction: unequal appraisal is about fairness relative to your neighbors, not about what your home would sell for. The appraisal district is required to treat similar properties consistently. When they don't, you have a legal right to a correction.
Unequal Appraisal vs. Market Value
Market Value (§ 41.41)
- —Argues your appraised value exceeds what your home would sell for
- —Evidence: recent comparable sales, independent appraisals
- —Strongest in declining markets or after a recent purchase below appraised value
Unequal Appraisal (§ 41.43)
- →Argues your assessment is higher than similar properties
- →Evidence: appraisal district records comparing $/sqft
- →Works in any market — only requires unfairness among assessments
Most property tax consultants lead with unequal appraisal because it does not depend on sales data. You only need to show that similar properties in your county are assessed at a lower rate per square foot. This evidence comes directly from the appraisal district's own records, making it difficult for them to dispute.
How to Build an Unequal Appraisal Case
1. Identify Your Improvement Value Per Square Foot
Your appraisal notice lists both a land value and an improvement value. The improvement value is the assessment of your home's structure — the building itself, not the lot. Divide this number by your home's living area (square footage) to get your improvement value per square foot. This is the metric you'll compare against.
2. Find Comparable Properties
Look for properties with similar characteristics: same subdivision or neighborhood, similar year built, similar square footage (within 20%), same number of stories, and similar construction quality. These comparables should be in the same county appraisal district's jurisdiction.
3. Calculate the Median Assessment Ratio
For each comparable property, calculate its improvement value per square foot the same way you did for your property. Then find the median (middle value) of the group. If your improvement $/sqft is above this median, the appraisal district is assessing your property at a higher rate than similar homes — the definition of unequal appraisal.
4. Calculate Your Potential Reduction
If the median comparable improvement value per square foot is lower than yours, multiply the median $/sqft by your square footage to calculate what your improvement value should be. Add your land value back to get the total appraised value you should argue for. The difference between this number and your current appraisal is the potential reduction.
Simplified Example
Your property: 2,200 sqft, improvement value $330,000 → $150/sqft
5 comparable properties: assessed at $128, $132, $135, $138, $142 per sqft
Median comparable: $135/sqft
Your target improvement value: $135 × 2,200 = $297,000
Potential reduction: $330,000 − $297,000 = $33,000
At a 2.5% effective tax rate, a $33,000 reduction saves roughly $825/year.
Why Unequal Appraisal Arguments Are Effective
- →Data comes from the district itself. You're using the appraisal district's own records to show inconsistency, which is hard for them to argue against.
- →No sales data needed. In neighborhoods with few recent sales, unequal appraisal is often the only viable argument.
- →Works in appreciating markets. Even if home prices are rising and your market value is accurate, you can still win a reduction if your assessment ratio is higher than comparable properties.
- →Widely used by professionals. Property tax consultants in Texas frequently rely on unequal appraisal as their primary argument, especially in large counties like Harris, Dallas, and Tarrant.
See Your Unequal Appraisal Analysis
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This guide is for informational purposes only and does not constitute legal advice or property tax consulting services. For advice specific to your situation, consult a licensed property tax consultant or attorney.