How to Protest Property Taxes in Bexar County / San Antonio (2026 Guide)

The Bexar County deadline

The Bexar Appraisal District (BCAD) mails your notice of appraised value in spring. From the date on that notice, you have until May 15, 2026 (or 30 days after the notice date, whichever is later) to file a protest. Miss it and your 2026 value is locked in for the year, except in the specific late-protest situations allowed under Texas Tax Code 25.25.

San Antonio market values climbed sharply between 2022 and 2025, and many BCAD notices have not come back down to where homes actually sell today. That gap is exactly what a protest is for.

How over-assessed San Antonio really is

When we ran every analyzed Bexar County home through the same matched-comps method the calculator uses on the live site, 132,531 homes came back over-assessed, about 23.6% of those analyzed. So roughly one in four San Antonio homeowners is carrying a value above what comparable nearby properties support. The pattern is heaviest in older inner-city ZIP codes, with 78207, 78210, 78201, and 78204 showing some of the highest over-assessment rates in the county.

At Bexar's 1.97% effective tax rate, even a modest reduction turns into real money every year you hold the lower value.

Step 1: Look up your assessment

Go to bcad.org and search your property. Note two things:

• Your 2026 appraised value.
• How much it jumped from 2025.

A double-digit increase is a flag worth checking. So is any value higher than what your home would realistically sell for today.

Step 2: Decide your grounds

Almost every successful residential protest in Bexar County rests on one of two arguments, both written into the Texas Tax Code:

1. Market value too high (Texas Tax Code §41.41(a)(1) and §23.01). Your assessed value is above your home's actual market value. Evidence: recent arm's-length sales of similar homes nearby.
2. Unequal appraisal (Texas Tax Code §41.43(b)(3)). Comparable homes near you are assessed for less than yours, per square foot. Evidence: a list of similar nearby properties assessed lower than your home.

The unequal-appraisal argument wins more often than people expect, because appraisal districts mass-appraise and routinely assess similar homes inconsistently. In a market like San Antonio's, two near-identical homes a block apart can carry very different assessed values.

Step 3: Pull your comps

This is the whole game. You want five or more comparable properties, similar in size, age, and neighborhood, that are assessed lower than your home. Print the BCAD record for each one. The more directly comparable they are (square footage within about 15%, year built within about 10 years, same bed/bath count, same part of town), the stronger your case.

Finding and formatting clean comps by hand is the slow, tedious part. Our free calculator pulls your Bexar County comps automatically and shows whether you are actually over-assessed before you spend a dollar. Run your San Antonio address and see the comps in about 30 seconds. If you would rather not assemble the packet yourself, the $99 flat packet pre-fills the iFile-ready format for you, one time, and you keep 100% of whatever you save.

Step 4: File the protest

File online through BCAD's portal, or mail Form 50-132 (Notice of Protest) before the deadline. State BOTH grounds, market value and unequal appraisal, since they are independent legal arguments. Online filing is faster and gives you instant confirmation.

Step 5: Work the informal first

Before any formal hearing, BCAD offers an informal review with an appraiser. Bring your comps. A large share of protests settle right here without ever reaching the Appraisal Review Board (ARB). Be polite, lead with your comparable evidence, and ask for a specific number.

If the informal does not get you there, you can take it to the ARB for a formal hearing. Same evidence, more structured setting. The panel hears your comps, BCAD presents theirs, and they rule.

What to expect

Plenty of Bexar County homeowners who protest with solid comps get a reduction. Even a modest cut compounds, because a lower assessed value this year becomes the starting point for next year. The biggest mistake is not protesting at all and paying the full over-assessment by default.

Start by checking whether your San Antonio home is over-assessed. If the comps say you are, you have a case worth filing before May 15.

Check Your Houston Address

Free calculator pulls HCAD comps in 30 seconds, no signup. Optional $99 packet pre-fills your iFile protest — you keep 100% of your savings.