How to Protest Your Commercial Property Tax in Texas (2026 Guide)

If you own commercial property in Texas, you have the legal right to protest your assessed value every single year. Most commercial property owners either don’t know this or assume the process is too complicated to be worth their time. Both assumptions are costing them money.

Texas has no state income tax. Local government, public schools, and infrastructure are funded almost entirely through property taxes — which means Texas property tax rates are among the highest in the country. Effective rates on commercial properties range from 1.8% to over 2.8% depending on the county. On a $3 million commercial property, that’s $54,000 to $84,000 per year. A 15% overassessment means you’re overpaying by $8,100 to $12,600 annually — and that compounds every year you don’t protest.

This guide walks through the entire protest process from start to finish.

Check Your Notice of Appraised Value First

Every spring, your county appraisal district (CAD) mails a Notice of Appraised Value showing your property’s assessed value for the current tax year. Most counties mail these in April. You can also look up your property’s assessed value anytime at your county CAD’s website — no notice required.

The question to ask is simple: does your assessed value reflect what your property would actually sell for in today’s market? Not what it sold for in 2021. Not what a new building down the street sold for. What a willing buyer would pay for your specific property, in its current condition, today.

If the answer is “probably less than what they assessed,” you have a case worth pursuing.

The Two Grounds That Win Commercial Protests

Texas Property Tax Code allows several grounds for protest, but commercial property owners win primarily on two:

Market value over-appraisal: Your property is assessed above its actual market value. This is what most people think of when they think about protesting. You prove the property is worth less than the district says using comparable sales, income analysis, or appraisal reports.

Unequal appraisal: Your property is assessed at a higher ratio of market value than comparable properties in the same district. Even if the district’s estimated market value is roughly correct, you can win a protest by showing that similar properties nearby carry lower assessed values per square foot. This is a powerful argument in counties with inconsistent appraisal practices.

Most strong commercial protests use both grounds together.

File Your Notice of Protest Before May 15

The deadline is May 15, or 30 days after your Notice of Appraised Value is mailed — whichever is later. Miss it, and you lose your protest rights for the entire tax year. No extensions. No exceptions except for a very narrow good-cause provision.

Filing the protest is straightforward. You don’t need evidence yet. You don’t need an attorney. You don’t need a consultant at this stage. You just need to submit a Notice of Protest with your county’s appraisal district identifying the property and stating you disagree with the appraisal.

Most major Texas counties — including Harris County, Dallas County, Tarrant County, Travis County, and Bexar County — offer online filing with instant confirmation. Use it. Paper mail works too, but certified mail is essential so you have proof of the filing date.

File as soon as you get your notice. Don’t wait until May 14.

Build Your Evidence Package

Evidence is what determines outcomes. An informal hearing with weak evidence results in a token reduction or no reduction. An informal hearing with strong evidence backed by data moves appraisers.

For commercial properties, three types of evidence carry the most weight:

Comparable sales (cost approach): Recent arm’s-length sales of properties similar to yours — same property type, similar age, comparable condition, nearby location. The adjustments matter. If your industrial building is 25 years old and the comps are five-year-old Class A facilities, the appraiser will dismiss them. Match the class and vintage of your building.

Income analysis: For income-producing commercial properties, the income approach is often the strongest argument. Calculate the property’s value using actual net operating income (NOI) divided by a market capitalization rate. If your actual rents, vacancy, and expenses produce a value lower than the assessed value, that’s your case. Appraisal districts frequently use inflated rent assumptions and compressed cap rates — correcting those assumptions to reflect your actual property can produce significant reductions.

Input	District Assumption (Typical)	Reality for Older/Non-Institutional Properties
Market rent	Top-tier asking rent	Actual contract rent on your lease
Vacancy rate	3–5%	7–15% (varies by market)
Cap rate	5.5–6.5%	7.0–9.0% (non-institutional assets)
Expense ratio	10–15%	18–28% (older buildings cost more)

Equity comparisons: Pull the assessed values of properties similar to yours in the same appraisal district. If comparable buildings are assessed at $85/SF and yours is at $110/SF, you have a direct equity argument — the law requires uniform treatment within the same district.

The Informal Hearing: Where Most Cases Settle

After you file, the appraisal district schedules you for an informal hearing — typically a 20-30 minute meeting (in person, phone, or Zoom) with a district appraiser. This is where roughly 65-75% of commercial protests get resolved.

The informal hearing is a negotiation. The appraiser reviews your evidence, you make your case, and they have authority to offer a reduced value on the spot. It’s not adversarial — appraisers work through hundreds of protests and respond well to organized, data-driven presentations. Come with your evidence organized, know the numbers cold, and be willing to negotiate.

If the offer is reasonable, sign the settlement and you’re done. If it’s not, you proceed to the ARB.

The ARB Hearing: Your Formal Appeal

If the informal hearing doesn’t produce a fair result, your case goes to the Appraisal Review Board (ARB) — an independent panel of citizens who hear protests and make binding determinations. The ARB hearing is more formal: both sides present evidence, the panel asks questions, and a decision is issued, usually within a few days.

You can represent yourself at an ARB hearing. However, for commercial properties above $1 million, having an experienced property tax representative or attorney present your case makes a measurable difference. They know how to frame the income approach, understand the specific appraisers’ tendencies, and can cross-examine the district’s evidence.

The ARB decision is binding unless you appeal to district court — which is rare and reserved for high-value disputes where the stakes justify the legal expense.

What Realistic Savings Look Like

Commercial property owners who protest in Texas typically see reductions of 5% to 25% on assessed value, depending on property type, evidence quality, and county.

Property Value	Assessed Reduction	Annual Tax Savings (at 2.1% rate)
$1,000,000	10% ($100K)	$2,100
$2,000,000	15% ($300K)	$6,300
$5,000,000	12% ($600K)	$12,600
$10,000,000	18% ($1.8M)	$37,800

These aren’t outlier numbers. Our average reduction across office, retail, industrial, and multifamily commercial properties in Texas has consistently run 12–22% of assessed value since 2023.

When to Handle It Yourself vs. Hire a Consultant

For straightforward properties under $500,000 with easy comparable sales — a small strip retail unit, a single-tenant commercial condo — the DIY route is reasonable. The process isn’t technically difficult, and keeping 100% of the savings makes sense when the absolute dollar amounts are modest.

For properties above $1 million, income-producing properties where the income approach matters, or any property in a high-volume county like Harris County or Dallas County where appraisers are sophisticated — a consultant on contingency earns their fee. Our 30% contingency means you pay only on savings delivered, and you pay nothing if we don’t reduce your value.

The protest deadline is May 15. If your 2026 Notice of Appraised Value shows a number that doesn’t match reality, that’s money you can recover — but only if you file.

Request a free property assessment or read how we’ve reduced values for commercial owners across all 254 Texas counties.