How to Protest Your Property Taxes in Harris County (Step by Step)

Published October 10, 2026. Updated October 21, 2026. Deadlines below were checked that day against the Tax Code, the Comptroller’s protest page, and HCAD’s FAQ.

A Harris County property tax protest is a challenge to what the Harris Central Appraisal District put on the appraisal roll. The Comptroller of Public Accounts says you may protest the district’s value or any of its actions concerning your property. The hearing is before the appraisal review board, which does not set the tax rate.

This page is not legal or tax advice. Filing rules and hearing procedures can turn on the date printed on your notice. Read that notice, then the official pages in Sources.

The deadline on the notice

Tax Code Section 41.44(a)(1) says that, except for the special cases in that section, a property owner who wants a hearing must file a written notice of protest not later than May 15, or the 30th day after the date the Section 25.19 notice was delivered, whichever is later. The Comptroller’s appraisal protests page restates that rule and then adds a practical note: the 30 days run from the date the appraisal district mails the notice, not from the day you happen to open the envelope.

HCAD’s FAQ, read October 10, 2026, says the same May 15 or 30-days-after-mailing rule, moves a weekend or holiday May 15 to the next business day, and says a notice not mailed by April 15 is due 30 days after the date printed on it. Confirm that date at hcad.org if the mail did not arrive. The Harris County Tax Office page also describes an April 30 “early” homestead date and says May 15 still applies if you miss it. Where those pages differ, follow Section 41.44 and the date on your notice.

What you are allowed to protest

Tax Code Section 41.41(a), in the text in effect until January 1, 2027, lists the actions a property owner may protest. On a house, the usual grounds are appraised value, unequal appraisal, inclusion on the roll, denial of a partial exemption, and any other action that applies to you and hurts you.

A protest is not a homestead application. If the exemption is missing, file Form 50-114 with the appraisal district. That process is described in the homestead exemption article. You can protest a denial of an exemption under Section 41.41, which is different from filing the application in the first place.

The Comptroller says a written notice is enough if it identifies the property, the owner, and that you are dissatisfied with a district decision. The model form for counties over 120,000 is Form 50-132, and HCAD’s FAQ tells Harris owners to use it. The Harris County Tax Office says to check “value is over market value,” “unequal value,” or both. It also says you do not have to give an opinion of value just to file.

How to file with HCAD

HCAD’s FAQ says the easiest path is the owner account. The iFile number on the upper right of the notice links to that account so you can file, upload documents, and use iSettle. HCAD points new users to owners.hcad.org. There is no iFile number until the account has been noticed. For a property that is not your primary residence, HCAD says you request that number as public information.

Paper is still allowed. HCAD says you may mail the protest, bring it to 13013 Northwest Freeway, or file online. A mailed protest must be postmarked by the U.S. Postal Service by the deadline, or sent in a way that leaves a receipt. Hours on the FAQ are 8:00 a.m. to 5:00 p.m., Monday through Friday, with no after-hours drop box. The information center number is (713) 957-7800. The Harris County Tax Office says forms are also at any of its offices and that a form comes with the notice.

If you just bought the house, HCAD says the January 1 owner receives the notice. A protest may already be open, and the new owner can attend. After the deadline or certification, the online option closes. HCAD says certification usually starts in mid-August.

Settle, or go to the hearing

The Comptroller says the value notice explains that you can meet informally with the district after you file, and that the hearing goes forward if that meeting does not settle it. The Harris County Tax Office describes the same stops: an optional meeting with a staff appraiser, then a review-board panel. HCAD’s FAQ says both are generally 15 minutes or less, and that you should allow about two hours from sign-in.

The tax office describes iSettle this way: file online, give an opinion of value, and accept or reject HCAD’s proposal. Accepting ends the protest. Rejecting schedules the review-board hearing. HCAD’s video page says you have to check the iSettle option and provide an opinion of value to be considered.

At the formal hearing, Tax Code Section 41.43(a) puts the burden on the appraisal district, in a value or unequal-appraisal protest, to prove the value by a preponderance of the evidence. If it does not, you win that protest. Subsection (a-1) raises the burden to clear and convincing evidence when the district’s value is $1 million or less and, at least 14 days before the hearing, you deliver an appraisal by a Chapter 1103 appraiser, performed not later than 180 days before the hearing, that supports your number. The Comptroller’s hearing page is direct: saying the district is wrong, with nothing behind it, is not a case.

Evidence to gather

Tax Code Section 41.461(a) says that at least 14 days before the hearing the chief appraiser must send the Comptroller’s pamphlet, the hearing procedures, and a statement that you may request the district’s evidence, at no charge. The Comptroller says the hearing notice goes out at least 15 days ahead. The Harris County Tax Office says to request that evidence in writing at least 15 days before the hearing, at 13013 Northwest Freeway or by mail to P.O. Box 922004, Houston, Texas 77292.

The Comptroller’s list includes photographs, repair estimates, a closing statement, and a median-level calculation for an unequal-appraisal protest. The tax office says to bring copies, check the living area and lot size, and photograph problems that do not show from the street. The Comptroller says the board may consider market conditions. It does not set the tax rate, and it does not decide the protest from your household budget.

Tax Code Section 41.45 lets you appear by affidavit, or by phone or video, if the evidence is in an affidavit filed before the hearing starts. The tax office says most Harris panel hearings are set for 15 minutes. The Comptroller says the written order arrives by email or certified mail.

What a lower value saves on a Houston bill

A protest changes appraised value. Tax is value, after exemptions, times each unit’s rate per $100. This example uses a $350,000 Houston ISD home and the tax year 2026 rates in this site’s dataset. Where a unit has no adopted 2026 rate, the 2025 adopted rate is used, which is the same rule as the calculator. Houston ISD’s 2026 rate is $0.8421 per $100, from the district’s tax page, checked October 21, 2026. The school exemption is the state $140,000 in Tax Code Section 11.13(b) plus Houston ISD’s 20 percent of appraised value. The other Harris units in the stack use the 20 percent homestead on the HCAD page. Houston City College is left off.

At $350,000 the stack bills $7,131.47 with no exemptions and $4,526.22 with the general homestead exemptions. At $330,000, the same stack bills $6,723.95 with no exemptions and $4,200.21 with those exemptions. A $20,000 reduction is worth $407.52 before exemptions and $326.01 after them. The state $140,000 does not shrink when the value drops. Houston ISD’s 20 percent does: school taxable value falls from $140,000 to $124,000, not by the full $20,000. The 20 percent on the other units shrinks the same way, which is why the savings are smaller than the no-exemption case. The City of Houston and the Harris County Department of Education still use their 2025 adopted rates because no adopted 2026 rate was in the dataset on October 21, 2026.

Run your own value, not this one, in the property tax calculator. Choose Harris County and your school district. The city guides for Houston, Katy, Cypress, and Spring use the same Harris County units.

If the deadline has passed, and if you lose

Section 41.44(b) says a protest filed after the usual deadline, but before the board approves the appraisal records, still gets a hearing if the board finds good cause. HCAD says that request is a paper protest plus a statement of good cause, and the board decides. The Comptroller also describes narrower late remedies, including a protest for failure to receive a required notice, filed before the delinquency date. Those are not a substitute for filing on time.

If you disagree with the order, the Comptroller says you have 60 days from receipt to petition district court where the property sits, and that you generally pay the undisputed taxes before the delinquency date. Regular binding arbitration covers a residence homestead of any value, and other property appraised at $5 million or less. A value over $1 million may go to the State Office of Administrative Hearings on value or unequal appraisal, with notice in 30 days and a $1,500 deposit in 90 days. Form 50-195 on the Comptroller’s forms index is the short procedure sheet.

Frequently asked questions

Use the calculator

Put in HCAD’s value and the value your evidence supports, with the homestead box matched to the account. Rate sources are on the data sources page.

Sources

The bill math was recomputed October 21, 2026 from the rates and exemptions linked here, using the same rounding as the calculator.

• Texas Tax Code Chapter 41 — Sections 41.41, 41.43, 41.44, 41.45, and 41.461.
• Texas Comptroller, Appraisal Protests and Appeals — deadline, informal conference, evidence, district court, binding arbitration, and SOAH.
• Comptroller property-tax forms — Form 50-132 and Form 50-195.
• HCAD frequently asked questions — deadline, iFile, mailing, office hours, late protests, and new owners.
• HCAD iFile protest — owner portal, document upload, and online settlement.
• Harris County Tax Office, How To Protest Your Property Appraisal — the April 30 note, iSettle, evidence request address, and hearing steps.
• Harris County Tax Office, Jurisdiction Tax Rates — 2026 adopted rates for the Harris County units that have one, and the 2025 City of Houston and Department of Education rates used where 2026 was not posted. Checked October 7, 2026.
• Houston ISD, Tax Information — 2026 adopted rate of $0.8421 per $100 and the homestead exemption of $140,000 plus 20 percent. Checked October 21, 2026.
• HCAD jurisdiction page, account 1045310000022 — 20 percent homestead column for the non-school Harris units in the example. Checked October 7, 2026. Confirm the percent on your own account.
• Texas Comptroller, Property Tax Exemptions — the $140,000 school homestead exemption used in the savings math.