Not a law firm. No legal advice, no attorney-client relationship — the published math, with its source.
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Bexar County, Texas Property Tax Protest

Work out how far your assessment sits above comparable sales, what a reduction would save at your local rate, and what each of the three routes to it costs — filing yourself, a flat-fee service, or a contingency service. Every county deadline is cited to the authority that sets it.

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Estimate only — not legal advice. This is the published math for Bexar County assessment appeals, shown as a range. Your actual outcome depends on facts, evidence, and decisions this page cannot see.

Protest deadline in Bexar County

The board's own procedures state it as: the written protest must be filed on or before May 15, or not later than the 30th day after the date a notice was mailed, if one was required. The district adds that using the online portal does not change any deadline, and that waiting for a portal PIN will not extend one.

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The rule

Enter your notice date

The board's own procedures state it as: the written protest must be filed on or before May 15, or not later than the 30th day after the date a notice was mailed, if one was required. The district adds that using the online portal does not change any deadline, and that waiting for a portal PIN will not extend one. Enter the date on your notice to resolve which applies.

There is a second deadline after the first, and it runs on 14 days. Missing it does not end the protest, but it can mean arriving at a hearing with nothing admitted.

Evidence, in this county: Two distinct rules here. On the district's side the board restates §41.67(d) verbatim: information you previously requested and did not receive at least 14 days before the hearing may not be used at it. On the owner's side Bexar publishes something the other districts do not — evidence should be provided at least 48 BUSINESS hours before the formal hearing. The wording is 'should', and the chair will accept evidence on the day; it must be handed over at check-in.

Where it goes

Hearing body
the Bexar Appraisal Review Board — note the board has not taken the word Central that the district adopted, so the two names differ and both are correct. Protests are heard by a three-member or single-member panel, scheduled for fifteen minutes, with sign-in fifteen minutes early
County taxing unit’s own rate per $100Not your total — see the note below.
0.3000

0.299999 is the Bexar County taxing unit's own 2025 rate per $100 — the county's general fund at 0.276331 plus road and flood at 0.023668, matching BCAD's own tax rate chart exactly. University Health at 0.276235, the community college at 0.149150, the San Antonio River Authority at 0.018300 and your city and school district all levy on top, and which apply depends on the parcel. No Texas authority publishes a single combined rate, so none is shown. Source ↗

The authority above is the one that publishes this deadline, and its instructions govern. Most jurisdictions require their own form or portal — a letter alone may not open a protest.

Check whether you are over-assessed with the assessment calculator, see the rest of Texas’s appeal procedure, then organise the evidence with the letter generator.

🎓 Understand this tool

What it is

A calculator for the two numbers an assessment appeal actually turns on: how far your assessed value sits above comparable sales, and what a reduction would be worth at your local rate. It also puts the published cost of each route to that reduction beside the saving it would produce.

How it works

The comparison uses the MEDIAN of the comparable sales you enter rather than the average, because comparable sales are a small sample and one unusual transaction — a teardown, a family transfer, a distressed sale — drags an average badly. Assessing authorities reason in medians for the same reason. Where a state assesses at a fraction of market value rather than the whole, the assessed figure is divided by that ratio first so the two sides of the comparison are measured the same way. The saving is the reduction multiplied by the combined rate per hundred dollars of value, which is the form counties publish rates in.

Getting the most from it

  1. Take the assessed value and the rate straight off your notice and your bill — not from memory.
  2. Enter several recent sales of genuinely similar properties nearby. Three is a realistic minimum; one comparison is easy to dismiss.
  3. Leave out distressed sales, family transfers and teardowns. Including one weakens the rest of the list rather than lengthening it.
  4. Check your county deadline before doing anything else. A window that has closed ends the appeal whatever the numbers say.

Reading your result

A gap under about five percent is usually treated as within tolerance — valuation is approximate by design, and authorities expect to be roughly rather than exactly right. A larger gap is the argument, but it is an argument you still have to make with evidence. The saving figure assumes the reduction is granted in full, which is why it is shown as a range: meeting halfway is a common outcome.

What it can't tell you

This cannot tell you whether your comparables are genuinely comparable, whether your county assesses the way you think it does, how a particular review board tends to decide, or whether an appeal risks drawing attention to something else about the property. It does not file anything, and it is not a valuation. A licensed appraiser values property; a lawyer advises on appeals.

Frequently asked questions

Compare the assessed value against recent sales of genuinely similar properties nearby. If the assessment sits meaningfully above the median of those sales, that gap is the argument. A difference of a few percent is usually treated as within tolerance — valuation is approximate by design.

Part of: Appealing a property tax assessment

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