What is the deadline to protest my property tax appraisal in Texas?

The deadline is May 15, or 30 days after the date printed on your appraisal district's notice of appraised value, whichever is later, and Texas grants no exceptions once it passes. Miss it and you lose your right to protest that value for the entire tax year.

Is a property tax protest the same thing as a homestead or agricultural exemption?

No, a property tax protest and a tax exemption are two different tools, since a protest disputes what the appraisal district says your property is worth this year while an exemption, such as an agricultural or wildlife exemption on acreage, reduces the taxable value of a property that already qualifies. You can use both in the same year if you qualify for an exemption and still disagree with the underlying value.

Why is it harder to protest a luxury home's appraised value than a typical home's?

A standard Houston home might have a dozen close sales within a mile in the past six months, but a $2 million-plus home in the same submarket might have three or four comparable sales in an entire year, so there's less hard data to argue from in either direction. That thin pool cuts both ways, and it's exactly why documentation matters more at the high end.

Should I hire a property tax consultant or protest my own luxury home's value?

Most Texas property tax consultants work on contingency, typically 25 to 50 percent of your first-year savings, so there's no upfront cost and the incentive lines up with your outcome. On a luxury home, where a successful protest can save thousands rather than a few hundred dollars, that contingency fee is often worth paying for the market knowledge and negotiating experience, even if you're capable of filing the protest yourself.

What happens if I disagree with the Appraisal Review Board's decision?

You can request binding arbitration through the Texas Comptroller within 60 days of the ARB's written order, an option open to homestead properties at any value and to non-homestead properties valued at $5.36 million or less in 2026. Above that threshold, a district court appeal is your only remaining option.

Luxury

How to Protest Your Property Tax Appraisal on a Luxury Home in Houston

September 22, 2026

A large Houston-area luxury home exterior in late-afternoon light with a manicured lawn and long driveway

Texas’s property tax protest deadline is May 15, or 30 days after the date on your appraisal district’s notice of appraised value, whichever is later, and on a luxury home in Harris or Montgomery County that deadline is worth circling now, not when the notice shows up in April. Protesting isn’t a complaint form. It’s a hearing, informal first and formal second if needed, where you’re arguing a number against an appraisal district that has to defend it. On a home worth $1.5 million or more, the stakes and the strategy both look different than they do on a median-priced house.

Before going further, it helps to clear up two things this exact topic gets confused with. This article is about disputing the county appraisal district’s ad valorem value, the number your property tax bill is based on. It is not the same thing as an agricultural or wildlife exemption, which lowers the taxable value of qualifying acreage rather than disputing the value itself. We cover that separately in our piece on wildlife and ag exemptions for large luxury properties. It’s also not the same kind of appraisal a lender orders when you’re buying or refinancing, which values the home for a mortgage, not for taxation, and runs into its own comp problems we wrote about in why luxury homes are harder to appraise. Same word, three different processes.

The Move Live Love TX Team is a husband-and-wife real estate team serving Houston and the surrounding areas, helping luxury buyers and sellers, with a Certified Luxury Home Marketing Specialist on every listing.

Why the Comps Get Thin at the Top

A $400,000 home in a typical Houston suburb might have a dozen close, recent sales within a mile. A $2 million to $3 million home in the same submarket might have three or four sales that closed anywhere near it in the past year, and Texas doesn’t require sale prices to be publicly disclosed, so even those few sales aren’t sitting in a public database the way they are in disclosure states. That scarcity cuts both directions. The appraisal district often struggles to find enough true comps to justify a value increase, and you can struggle to find enough to argue it down. Whoever brings the more specific, better-documented evidence to the hearing tends to win the argument, not whoever shows up with the most paper.

What Moves the Needle at the High End

An appraisal district’s mass-appraisal model is built for volume, not for the one-of-a-kind pool house, the guest casita, or the twenty-year-old roof nobody’s replaced. Evidence that works at this price point usually falls into three categories.

An independent fee appraisal. A licensed appraiser’s opinion of value, built specifically for your home rather than modeled from a formula, carries real weight in front of an ARB panel.
Condition and functional-obsolescence documentation. Photos, contractor estimates, and repair invoices showing what the appraisal district’s drive-by data doesn’t capture, foundation movement, a dated system, a floor plan that doesn’t work for today’s buyers.
A lack-of-comparable-sales argument. When there aren’t enough true matches to build a case either way, showing the appraisal district’s own comps are poor fits, wrong lot size, wrong age, wrong finish level, can be more effective than trying to manufacture better ones.

Informal Review First, Formal ARB Second

Most Houston-area appraisal districts, including Harris County, let you request an informal conference with an appraiser before your case ever reaches a formal Appraisal Review Board hearing, and most protests resolve right there without a panel. If it doesn’t settle informally, the formal ARB hearing is still relatively brief, typically well under an hour, and both sides have to exchange their written evidence beforehand. If you disagree with the ARB’s final order, you have 60 days to request binding arbitration through the Texas Comptroller. Homestead properties qualify at any value; non-homestead properties qualify up to $5.36 million in appraised value for 2026, and above that a district court appeal is the remaining route.

Do It Yourself or Hire a Consultant

Most Texas property tax consultants work on a contingency fee, usually 25 to 50 percent of whatever they save you in the first year, so there’s no upfront cost if the protest doesn’t succeed. On a $350,000 home, a modest reduction might save a few hundred dollars, which makes the fee feel marginal. On a $2 million-plus home, the same percentage reduction can mean thousands of dollars in savings, and a consultant who spends every week in front of that county’s ARB panel usually knows which arguments land with which appraisers, which is not something you pick up filing your own protest once a year.

Peter’s background in construction and lending means he reads a home’s condition and its comps the way an appraiser does, not the way a typical listing agent does, and that’s exactly the read a luxury seller or owner needs before deciding whether to fight a valuation alone or bring in professional help. If you’re weighing whether your home’s appraised value is even out of line before you commit to a protest, that’s a conversation worth having before the deadline, not after it.

You do not have to pick a side of this before you’ve looked at your notice. Pull last year’s protest result if you filed one, check whether your value jumped more than the market around you moved, and decide from there whether this is a five-minute online filing or a case worth building.

Frequently Asked Questions

What is the deadline to protest my property tax appraisal in Texas?: The deadline is May 15, or 30 days after the date printed on your appraisal district's notice of appraised value, whichever is later, and Texas grants no exceptions once it passes. Miss it and you lose your right to protest that value for the entire tax year.
Is a property tax protest the same thing as a homestead or agricultural exemption?: No, a property tax protest and a tax exemption are two different tools, since a protest disputes what the appraisal district says your property is worth this year while an exemption, such as an agricultural or wildlife exemption on acreage, reduces the taxable value of a property that already qualifies. You can use both in the same year if you qualify for an exemption and still disagree with the underlying value.
Why is it harder to protest a luxury home's appraised value than a typical home's?: A standard Houston home might have a dozen close sales within a mile in the past six months, but a $2 million-plus home in the same submarket might have three or four comparable sales in an entire year, so there's less hard data to argue from in either direction. That thin pool cuts both ways, and it's exactly why documentation matters more at the high end.
Should I hire a property tax consultant or protest my own luxury home's value?: Most Texas property tax consultants work on contingency, typically 25 to 50 percent of your first-year savings, so there's no upfront cost and the incentive lines up with your outcome. On a luxury home, where a successful protest can save thousands rather than a few hundred dollars, that contingency fee is often worth paying for the market knowledge and negotiating experience, even if you're capable of filing the protest yourself.
What happens if I disagree with the Appraisal Review Board's decision?: You can request binding arbitration through the Texas Comptroller within 60 days of the ARB's written order, an option open to homestead properties at any value and to non-homestead properties valued at $5.36 million or less in 2026. Above that threshold, a district court appeal is your only remaining option.

Questions about your situation? Peter and Vicky are a call away — get in touch or start a home search.