Property Tax Protest Deadline in Texas
(2026 Guide)
March 25, 2026 | Michael Saegert, Atty at Law
If you’re a Texas homeowner, knowing the property tax protest deadline could save you hundreds or even thousands of dollars.
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Every year, many homeowners miss their chance to challenge their property value simply because they didn’t know the deadline—or waited too long to act.
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👉 As of March 2026, many appraisal notices are already being sent out, and the protest window can close quickly.
Texas Property Tax Protest Deadline for 2026
In most cases, the deadline to file a property tax protest in Texas is:
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May 15, 2026
OR
30 days after your Notice of Appraised Value was mailed (whichever is later).
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Note: Always check the mailing date on your notice — this determines your exact deadline.
Why the Property Tax Deadline Matters
If your property has been overvalued, you may be paying more in taxes than necessary.
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But if you miss the deadline:
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You may lose your right to challenge your property value
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You could be stuck with a higher tax bill for the entire year
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Your options for reducing your taxes become limited
If your valuation looks too high, now is the time to challenge your property tax assessment before it’s too late.
Key Texas Property Tax Dates for 2026
Understanding the full timeline helps you stay ahead and avoid missing important deadlines.
January 1, 2026
Property values are assessed based on market value as of this date.
Late March to Early May 2026
Many homeowners receive their Notice of Appraised Value during this period.
May 15, 2026 (or 30 days after notice)
Deadline to file your property tax protest.
May through July 2026
Appraisal Review Board (ARB) hearings typically take place.
Property Tax Protest Deadline in Houston (Harris County)
If you own property in Houston, your protest is handled by the local appraisal district.
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In Harris County, the same general rule applies:​ May 15, or 30 days after your notice was mailed (whichever is later).​ Because mailing dates can vary, always rely on the date printed on your notice—not assumptions.
What Is the Notice of Appraised Value?
The Notice of Appraised Value is the document sent by your local appraisal district that shows:
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Your property’s appraised value
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Any increase from the previous year
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Instructions for filing a protest
This notice officially starts your protest window.
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If you haven’t received it yet, keep checking — because your deadline depends on it.
How to File a Property Tax Protest
Before the Deadline
Filing a protest is straightforward, but timing and accuracy are critical.
File Online
Many appraisal districts allow online filing, which is often the fastest and easiest method.
File by Mail
You can submit a written protest by mail, but it must be postmarked before your deadline.
File In Person
Some homeowners choose to file in person to ensure everything is submitted correctly.
Prepare Your Evidence
Supporting evidence may include:
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Comparable home sales
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Photos of your property condition
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Repair estimates
Learn more about how to protest property taxes in Texas and prepare a strong case.
What Happens If You Miss the Property Tax Protest Deadline?
Missing the deadline can limit your options—but it doesn’t always mean you’re out of luck.
What You May Lose
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Your ability to file a standard protest
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The opportunity to reduce your property value for the year
Possible Alternatives
If you miss the deadline, you may still explore:
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Applying for property tax exemptions in Texas
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Considering a property tax deferral in Texas if you qualify
These options may still provide relief, depending on your situation.
Common Mistakes Homeowners Make
Waiting Too Long
Many homeowners delay and miss the deadline entirely.
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Ignoring the Notice
Some overlook their appraisal notice and lose their opportunity to act.
Assuming the Value Is Correct
Appraisal districts can make errors, and even small discrepancies can cost you money.
Should You Protest Your Property Taxes?
In many cases, yes.
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Even a modest reduction in your property value can lead to meaningful savings year after year.
If your property appears overvalued, filing a protest is one of the most effective ways to lower your property tax bill in Texas.
Get Help Before the Deadline
With deadlines approaching, timing is everything.
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Working with an experienced Houston property tax attorney can help ensure:
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Your protest is filed correctly and on time
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Your evidence is strong
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You maximize your potential savings
At Michael Saegert, Attorney at Law, we help Texas homeowners take action before it’s too late.
We serve clients across Houston, Pasadena, Sugar Land, The Woodlands, Beaumont, Corpus Christi, San Antonio, Austin, Dallas, Fort Worth, and El Paso.
Reach out today to get trusted property tax help in Texas before the deadline passes.
(Nothing to pay unless we achieve results.)
Frequently Asked Questions About
the Texas Property Tax Protest Deadline
What is the property tax protest deadline in Texas for 2026?
In most cases, it is May 15, 2026, or 30 days after your appraisal notice was mailed.
What if I receive my appraisal notice late?
Your deadline may be later than May 15 if your notice was mailed after April 15. Always check the mailing date.
Can I file a protest after the deadline?
In most cases, no. However, limited exceptions may apply depending on your situation.
How do I know my exact deadline?
Check the mailing date on your Notice of Appraised Value. Your deadline is based on that date.
Is it worth protesting property taxes?
Yes. Many homeowners successfully reduce their property value and save money by filing a protest.
Do I need evidence when I file a protest?
You can file first to meet the deadline, then prepare evidence before your hearing.