Property Tax Protest Guide: Guadalupe & Comal County 2026

If you just opened your Notice of Appraised Value from Guadalupe or Comal County and felt your stomach drop, you're not alone. Property values in the Cibolo, Schertz, and New Braunfels corridor have climbed significantly over the past few years, and even with the new $100,000 homestead exemption, a lot of homeowners are still seeing higher tax bills than they expected. The good news? You have every right to fight back — and the process is simpler than most people think.

I've protested the appraisals on my own investment properties for years, and I've walked dozens of my clients through the process. Here's exactly what you need to know to protest your property taxes in Guadalupe and Comal County before the May 15, 2026 deadline.

Who Should Protest Their Property Taxes in 2026?

Short answer: almost everyone. If your appraised value went up and you believe it's higher than what your home would actually sell for, you have grounds to protest. But here are the homeowners who benefit the most:

• Homeowners in Cibolo, Schertz, or Selma who bought during the 2021–2023 peak and have seen values flatten or decline slightly since then
• Owners of new construction homes where the appraisal district estimated completion value without accounting for builder concessions or rate buydowns
• Investment property owners in Universal City, Converse, or New Braunfels with multiple parcels — every dollar you save multiplies across your portfolio
• Anyone whose home has condition issues, deferred maintenance, or sits on a less desirable lot (backing to a road, power lines, commercial property)

If you're not sure whether your appraisal is too high, look up comparable recent sales in your neighborhood on the Guadalupe Appraisal District or Comal Appraisal District websites. If similar homes sold for less than your appraised value, you've got a case.

Key Deadlines You Cannot Miss

The most important date on your calendar is May 15, 2026 — or 30 days after you receive your Notice of Appraised Value, whichever is later. That deadline is printed on your notice. Miss it, and you're locked in for the year.

Here's the timeline that matters:

• April 2026: Appraisal notices start arriving by mail from Guadalupe AD and Comal AD
• May 15, 2026: Deadline to file your protest (or 30 days from your notice date, whichever is later)
• May–August 2026: Informal hearings and ARB (Appraisal Review Board) formal hearings take place
• Late 2026: Tax bills go out with your final assessed value

Don't wait until May 14 to scramble. Start gathering your evidence now so you're ready to file as soon as your notice arrives.

How to File Your Property Tax Protest Step by Step

Filing is straightforward — the appraisal districts have made it easier than ever to do online. Here's the process for both counties:

For Guadalupe County (Cibolo, Schertz, Selma, Marion, Seguin):

• Visit guadalupead.org and use their online eFile system
• You can also file by mail or in person at their offices in Seguin or Schertz
• Submit a Notice of Protest — you just need to identify your property and state you disagree with the appraised value

For Comal County (New Braunfels, Garden Ridge, Bulverde, Spring Branch):

• Visit comalad.org and file through their online portal
• You can also email your protest form to the district directly
• Same form — identify the property, check the boxes for what you're protesting

Pro tip from my own experience: Always check both boxes — "Market Value" AND "Unequal Appraisal." This gives you two separate arguments at your hearing. Market value means your home is appraised above what it would actually sell for. Unequal appraisal means your home is valued higher than comparable properties in the district. You can win on either one.

What Evidence to Gather Before Your Hearing

This is where most homeowners either win big or leave money on the table. The appraisal district isn't going to lower your value just because you ask nicely — you need data.

Here's what I recommend gathering:

• Recent comparable sales: Pull 3–5 homes similar to yours that sold in the last 6–12 months for less than your appraised value. Focus on same neighborhood, similar size, same condition. The MLS is the gold standard, but you can also use public records on the appraisal district website.
• Photos of your property's condition: Foundation cracks, aging roof, outdated kitchen, HVAC issues — anything that would reduce your home's value compared to the "average" condition the district assumes.
• Repair estimates: If you have quotes from contractors for needed repairs, bring them. A $15,000 foundation repair estimate is powerful evidence.
• Your home's listing history: If your home sat on the market without selling, or if you purchased it for less than the current appraised value, that's relevant data.
• Unequal appraisal data: Look up 5–10 comparable properties in your area on the appraisal district website. If they're assessed lower per square foot than your property, you have an unequal appraisal argument.

I helped a client in Turning Stone last year who was appraised $40,000 above what comparable homes were selling for. We pulled five recent sales within the subdivision, documented some cosmetic issues with photos, and got the value reduced at the informal hearing without even going to the ARB. That's $800–$1,000 a year in tax savings — every single year going forward.

Informal Hearing vs. Formal ARB Hearing

After you file, you'll first get an informal hearing with an appraiser from the district. This is a one-on-one conversation — no judge, no formality. Bring your evidence and make your case.

Most protests get resolved here. The appraiser has authority to agree to a lower value on the spot. If you've done your homework and your evidence is solid, you'll likely walk away with a reduction.

If you can't reach an agreement at the informal hearing, you'll move to a formal hearing with the Appraisal Review Board (ARB). This is a panel that reviews your evidence and the district's evidence, then makes a decision. It sounds intimidating, but it's still relatively informal — you present your case, the appraiser presents theirs, and the board decides.

You can also hire a property tax consultant or attorney to represent you. They typically charge a percentage of the savings (often 30–40% of the first year's tax reduction). For investment property owners with multiple parcels, this can be worth the cost.

The Homestead Exemption: Don't Leave Money on the Table

Before you even think about protesting, make sure your homestead exemption is filed. Texas now offers a $100,000 homestead exemption on your primary residence for school district taxes, plus additional exemptions that vary by county and taxing entity.

If you haven't filed your homestead exemption — or if you bought your home recently and forgot — do it immediately. You can file with the Guadalupe Appraisal District or the Comal Appraisal District.

Also worth noting: Texas law caps annual appraisal increases at 10% per year for homesteaded properties. So even if the market jumps 20%, your taxable value can only go up 10%. Starting from a lower base value (which is what a successful protest gives you) means slower growth and lower taxes for years to come.

You Can Protest Every Single Year

This isn't a one-and-done thing. I protest my investment properties every year, and I encourage every homeowner I work with to do the same. The appraisal district reassesses annually, and values don't always go in your favor. Even if you won a reduction last year, they might bump it back up this year.

Set a calendar reminder for mid-April every year to check your notice and file a protest if the value seems high. It takes 30 minutes to file online and could save you hundreds or thousands of dollars annually.

Take Action Before the May 15 Deadline

Property taxes are one of the biggest expenses for homeowners in the San Antonio metro — and in Guadalupe and Comal County, those rates aren't going down anytime soon. But you have a legal right to challenge your appraised value, and the process is designed so you can do it yourself without hiring anyone.

If you need help pulling comparable sales data for your protest, or if you're thinking about buying or selling in Cibolo, Schertz, New Braunfels, or anywhere in the JBSA corridor, I'm happy to help. I've been through this process on my own properties more times than I can count, and I know the local market inside and out.

Ready to talk real estate or need comps for your tax protest? Book a free consult with me here or call me at (210) 827-3463.

Anthony Sharp
REALTOR® | Sharp Realty Group (Real Brokerage)
U.S. Air Force Veteran | Cibolo Resident & Investor