Texas has some of the highest property tax rates in the country, and Houston-area appraisals routinely come in 5-15% above what the property actually justifies. Most homeowners and investors accept the assessment without appealing. Those who do appeal — and do it correctly — save thousands every year. Here’s the playbook.
The annual cycle
HCAD (Harris County Appraisal District) and surrounding county appraisal districts mail Notice of Appraised Value letters in April-May each year. Once you receive the notice, you have until May 15 (or 30 days after notice, whichever is later) to file a formal protest.
Don’t skip this deadline. Once it passes, you’re locked in for the year.
Two grounds for appeal
1. Market value: the appraised value is higher than what the property would actually sell for. Most successful appeals are on this ground.
2. Equal and uniform: your property is appraised higher than comparable properties in your neighborhood. This is harder to prove but powerful when applicable.
How to build the case
For market value appeals:
- Pull 3-5 recent comparable sales (similar size, age, condition) within the last 6 months
- HCAD’s own iSettle tool shows comps and gives you a sense of where they’ll defend
- Look for sales that came in below your appraisal
- Photograph any condition issues — needed roof, foundation cracks, deferred maintenance
- Get repair estimates if applicable — an old roof needing $15,000 of work justifies a value adjustment
For equal and uniform appeals:
- Pull 5-10 neighboring properties with similar characteristics
- Compute the median appraised value per square foot
- If your $/sq ft is above the median, you have a case
The protest process
- File the protest online through HCAD or your county’s portal (free)
- Receive an informal hearing date
- At informal hearing: meet with an appraiser, present your evidence. Most cases settle here.
- If unsatisfied, escalate to the Appraisal Review Board (ARB) for a formal hearing
- If still unsatisfied, file in district court (rare for residential)
Property tax consultants
Companies like O’Connor & Associates and Ryan offer property tax appeals on contingency — no fee unless they save you money, then they take 30-50% of the savings. For most homeowners with $5K+ property tax bills, the math works.
For real estate investors with multiple properties, a contingency consultant who handles all your protests is usually worth it. The time savings alone justify the fee.
Investor-specific opportunities
If you bought property recently:
- Your purchase price often beats HCAD’s appraisal — but only if it’s arms-length and recent
- Foreclosure or distressed purchases require careful argumentation
- If property condition has declined, use that
For commercial real estate:
- Income approach matters — if NOI is below market, appraisal should reflect it
- Vacancy rates and operating expenses are part of the case
- Capitalization rate analysis can drive significant reductions
Houston-specific factors
- Hurricane and flood damage is appealable in disaster years
- Properties in newly designated flood zones often see appraisal corrections
- The 10% homestead cap limits annual increases on owner-occupied properties — verify HCAD applied it correctly
The real numbers
Typical Houston successful appeal: 5-12% reduction in appraised value. On a $400,000 home with $9,000 of property tax, that’s $450-$1,080 of annual savings — recurring year over year.
For investors with portfolios, the savings stack: a 10-property portfolio with 8% average reductions can save $20,000+ annually.
The bottom line
Property tax appeals are one of the cleanest ROI activities available to Houston property owners. Two hours of work for $500-$2,000 of recurring annual savings is hard to beat. If you have a property tax bill over $5,000, you should be appealing every year.
For real estate investor clients with multiple properties, we coordinate property tax strategy as part of our real estate accounting work. Call (832) 594-0339 or use the contact page if you want help.