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How to Protest Your Property Tax in Duval County, Texas
The county seat is San Diego, about 9,402 people live here, spread over 1,793 square miles. One appraisal district, Duval County Appraisal District, values every property in the county — 24,670 parcels in 2025.
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Duval County Appraisal District
Duval CAD at a glance
Contact details from the Comptroller’s appraisal district directory and the district’s own site. Confirm before you mail anything time-sensitive.
| Mailing address (protests by mail) | P.O. Box 809 San Diego, TX 78384-0809 |
| Phone | 361-279-3305 |
| Website | duvalcad.org |
| Online protest portal | The district reports an online protest system to the Comptroller. Look for “Online Protest” or “Online Appeals” on its website. |
| Informal review with staff | Offered |
Duval County deadlines for 2027
| Milestone | Duval County, 2027 |
|---|---|
| Notices of Appraised Value mailed | Typically April through early May 2027 |
| Protest deadline for the 2027 season | Monday, May 17, 2027, or 30 days after your notice was delivered, whichever is later (Tax Code §41.44). May 15, 2027 falls on a Saturday, so §1.06 moves the statutory date to the next business day. |
| Informal reviews and ARB hearings | May through July 2027 in most districts; the ARB must approve the records by July 20 (§41.12) |
| Late protest if you never received a notice | Allowed under §41.411 until the taxes become delinquent (Feb 1, 2028) |
| §25.25(d) motion for a substantial error (one-third over value) | Before the delinquency date, Jan 31, 2028 |
| §25.25(c) correction of clerical errors or non-existent property | Up to five prior tax years |
| Binding arbitration after an ARB order | 60 days after you receive the order (§41A.03) |
Texas law sets one statewide protest deadline, but each district mails on its own schedule. If your notice arrives late in May, the 30-day clock from delivery gives you more time than May 17. Write the printed last day on your calendar the day the notice arrives.
How to file a protest in Duval County
- Read your Notice of Appraised Value. Duval CAD mails notices in April and May. The notice prints your proposed market value, appraised (capped) value, exemptions on file, and the last day to file. That printed date controls.
- Pull your record and your neighbors’ records. Confirm living area, year built, and condition on your own account. Then collect the appraised values of similar homes nearby. An unequal-appraisal case under §41.43(b)(3) is built from the district’s own numbers, so you do not need sale prices.
- File Comptroller Form 50-132 before the deadline. Download Form 50-132, Notice of Protest. Check both “incorrect appraised (market) value” and “value is unequal compared with other properties.” Submit it online, through the protest link on the district website, by mail to P.O. Box 809 San Diego, TX 78384-0809, or by hand delivery at the district office. Keep proof of the date you filed.
- Ask for the district’s evidence. Under Tax Code §41.461 you may request the data the appraiser will use at your hearing. Ask in writing when you file. The district must provide it at least 14 days before the hearing.
- Take the informal meeting first. Most reductions happen in an informal review with a staff appraiser, not in front of the board. Bring your comparables table and photos, and know the exact value you are asking for.
- Present to the Appraisal Review Board if needed. The ARB hearing runs about 15 minutes. State your requested value, hand over your evidence, and answer questions. You will get a written order; you then have 60 days to seek binding arbitration or 45 days for district court.
Forms you will use. Form 50-132 (Notice of Protest) starts every case. If your record lists improvements that do not exist, add a §25.25 correction motion. If a homestead, over-65, or disabled-veteran exemption is missing, file Form 50-114 at the same time.
Duval County by the numbers
These are the figures Duval CAD reported to the Texas Comptroller in the 2025 Appraisal District Operations Survey. Districts self-report, so treat them as the district’s own account rather than an audit.
| Measure | Duval County |
|---|---|
| Protests filed in 2025 | 1,211 |
| Protests filed in 2024 | 538 |
| Single-family residential protests | 25 |
| Parcels in the district | 24,670 |
| Filed by designated agents (paid firms) | 765 (63%) |
| Filed online | 38 (3%) |
| Resolved informally (never reached the ARB) | 975 |
| Informal resolutions that cut the value | 118 (12%) |
| Written ARB determinations | 64 |
| ARB determinations that lowered the value | 34 (53%) |
| Value removed through informal resolutions | $56.2 million |
| Value removed by ARB determinations | $26.5 million |
| Days the ARB held hearings | 4 |
| ARB seats | 3 |
| Total certified market value, 2025 | $4.9 billion ($200.5 million single-family) |
| Homesteads with the over-65 exemption | 1,150 |
| Homesteads valued under $140,000 | 2,150 |
Protest volume was up 125% from 2024 to 2025. About 5% of all parcels were protested. 63% of protests came from paid agents. Those firms file the same public-record evidence TaxStand gives you, then keep a share of your savings. Of the cases staff settled informally, 12% ended with a lower value. The informal meeting is where good evidence does most of its work.
Your two legal grounds
Market value (§41.41(a)(1)). The district says your home would sell for more than it would. Evidence: recent sales of similar homes, condition problems, repair bids, and anything that depresses value such as flooding, road noise, or a neglected neighbor.
Unequal appraisal (§41.41(a)(2) and §41.43(b)(3)). The district values your home higher per square foot than a reasonable number of comparable homes, adjusted for size and features. This argument runs on the district’s own appraisal roll, which is public, so it works in non-disclosure Texas without buying sale data. It is the ground TaxStand’s packet is built around. Read the deep dive: What is unequal appraisal in Texas?
Check both boxes on Form 50-132. The ARB must rule on each ground you raise, and the lower result wins.
See your Duval County equity read in seconds.
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Check my Duval County property freeFAQ — Duval County
When is the Duval County property tax protest deadline in 2027?
Monday, May 17, 2027, or 30 days after Duval CAD delivered your Notice of Appraised Value, whichever is later. Texas Tax Code section 41.44 sets the rule. Use the last-day date printed on your own notice.
Where do I file a property tax protest in Duval County?
File Comptroller Form 50-132 with the Duval County Appraisal District by mail to Duval County Appraisal District, P.O. Box 809 San Diego, TX 78384-0809, or in person at the district office. Keep a dated copy.
Can I file my Duval County protest online?
Yes. Duval CAD offers online protest filing through its website.
Does Duval CAD offer an informal review before the ARB hearing?
Yes. Duval CAD offers an informal review with a staff appraiser before any Appraisal Review Board hearing. In 2025 the district reported 975 informal resolutions, and 12% of them lowered the value.
Does TaxStand work in Duval County?
Yes. TaxStand builds the full size-adjusted $/sqft equity packet for Duval County homes from the district's appraisal records.
Nearby in the directory
Dickens · Dimmit · Donley · Eastland · Ector · Edwards · all 254 counties
Sources. Protest, parcel, ARB, and exemption counts: Texas Comptroller of Public Accounts, Property Tax Assistance Division, Appraisal District Operations Survey data for 2024 and 2025 (figures self-reported by each district under Tax Code §5.03(b)). District contacts: the Comptroller’s appraisal district directory and the district’s own website, checked October 2026. County seat, founding year, population and area: Wikipedia, List of counties in Texas (CC BY-SA), drawing on U.S. Census Bureau estimates.
This page is general education, not legal or tax advice. Duval County Appraisal District is the authoritative source for Duval County appraisal and protest procedures. TaxStand is a service of Outlaw Holdings LLC. We do not represent homeowners at hearings; our analyzer and packet build the evidence you file yourself.