Every year, Texas appraisal districts over-value hundreds of thousands of properties — and most owners pay the inflated bill without question. Texas law gives every property owner the right to protest their appraised value, and winning a protest can cut your tax bill by hundreds or even thousands of dollars. This guide walks you through every step of the process for the 2026 tax year.
2026 Deadline: The standard protest deadline is May 15, 2026 or 30 days after your Notice of Appraised Value was mailed — whichever is later. Do not miss this date.
Texas has no state income tax, which means the state relies heavily on property taxes to fund public services. Appraisal districts are under pressure to hit revenue targets, and mass appraisal methods — which value thousands of properties at once using statistical models — frequently produce inaccurate results. In 2025, the Texas Comptroller found that more than a third of protested properties received a reduction in value.
Even a modest reduction matters. If your home is appraised at $450,000 and your effective tax rate is 2.1%, each $10,000 reduction in value saves you $210 per year — and those savings compound over time with the locked-in benefit of your homestead exemption cap.
You can protest on two main grounds under the Texas Tax Code. Understanding which applies to your situation shapes your entire evidence strategy.
The appraisal district's value exceeds what your property would actually sell for on the open market. This is the most common ground and is supported by comparable sales data.
Your property is appraised at a higher percentage of market value than comparable properties in your district. You don't have to prove the value is wrong — only that it's unequal relative to your neighbors.
The appraisal record contains incorrect data — wrong square footage, extra bathrooms that don't exist, or a lot size that doesn't match the deed. Any factual error is grounds for correction.
You were denied a homestead, over-65, disabled veteran, or other exemption you're entitled to. You can also protest failure to receive a special use valuation.
When your Notice of Appraised Value (NOV) arrives in the mail — typically in April — read it carefully. It shows your proposed appraised value, any exemptions applied, and the protest deadline specific to your property. Check the appraisal district's property record online for errors in square footage, bedroom count, year built, and lot size. A single factual error can justify a significant reduction without the need for comparable sales.
What is a Notice of Appraised Value? →File your protest using Form 50-132 (Notice of Protest), available from your county appraisal district or the Texas Comptroller's website. You can file online, by mail, or in person. Filing online is fastest and gives you a confirmation number. The form is simple — you're notifying the district that you disagree with your value and stating the grounds. You don't need a detailed argument at this stage.
You must file by May 15 or 30 days after the NOV mailing date, whichever is later. If your NOV was mailed April 4, your deadline is May 4. Postmarks count for mail filings. When in doubt, file early.
Evidence wins protests. The most compelling evidence you can bring to an ARB hearing falls into three categories:
For an unequal appraisal argument, pull the assessed values of 5–10 similar properties using the district's public search tool and calculate the median ratio of assessed value to market value. If your ratio is higher than the median, you have a strong unequal appraisal case.
How unequal appraisal works in Texas →After you file, the Appraisal Review Board (ARB) — an independent panel of citizens — will schedule a hearing. You'll typically have 15–30 minutes to present your case. The appraisal district presents first, then you respond. Be concise, factual, and respectful. Bring three copies of all your evidence: one for yourself, one for the ARB panel, and one for the appraisal district's representative.
At the hearing, focus on the numbers. If you have three recent comparable sales that averaged $410,000 and your property is appraised at $445,000, say exactly that. ARB members are not appraisers — they respond to clear, well-organized data, not emotional arguments.
Tip: You have the right to request the appraisal district's evidence at least 14 days before your hearing (Tax Code §41.67). Always request it. Their comps may support your case, and you'll know exactly what you're walking into.
The ARB will issue a written order within a few days. If you're satisfied with the reduction, you're done. If not, Texas law gives you three additional options:
Binding Arbitration: Available for most residential properties valued under $5 million. You pay a deposit ($500–$1,500 depending on value), a third-party arbitrator reviews both sides, and the losing side pays the fees. If the arbitrator rules in your favor, you get your deposit back and the value is reduced.
State Office of Administrative Hearings (SOAH): An alternative to district court for commercial and higher-value properties.
District Court: The most formal option. Legal costs are significant, but this route makes sense for high-value properties with a strong case.
Texas Tax Lock files and manages your protest on your behalf — evidence gathering, hearing attendance, and follow-through. You only pay if we win.
Get Started — No Win, No FeeA successful protest reduces your appraised value for the current tax year. But Texas appraisal districts can raise your value again next year. The most powerful long-term protection is your homestead exemption cap — if you have a homestead exemption on your primary residence, the appraised value for tax purposes cannot increase more than 10% per year, regardless of what the market does.
Make sure your homestead exemption is on file. If you bought your home in 2023 or later, exemptions are now automatically transferred for qualifying properties — but it's worth verifying with your appraisal district.
The standard protest deadline is May 15 or 30 days after the appraisal district mails your Notice of Appraised Value, whichever is later. Missing this deadline typically means waiting until the next tax year.
Yes. Texas law allows homeowners to protest their own property taxes before the ARB without an attorney or agent. You simply file a protest form and attend a hearing to present your evidence.
The most effective evidence includes recent sales of comparable properties (comps), a recent independent appraisal, photos of property damage or condition issues, and any errors in the appraisal district's property record such as incorrect square footage, lot size, or features.
If you miss May 15, you generally cannot protest that year's appraised value. However, you may qualify for a late protest under Texas Tax Code §41.45 if you can show the failure was not intentional or due to conscious indifference, and you file before the ARB approves the appraisal records.