Protesting Your Austin Condo Property Taxes: A Practical Guide
April 9, 2026 · 3 min read · By Adrian Salas

Property taxes are the second largest recurring cost of owning an Austin condo after the mortgage, and the appraised value behind them is frequently wrong for high rise units. Protesting is not adversarial. It is routine, and the system expects it.
Why condo values get missed
Mass appraisal works reasonably well for subdivisions of similar houses. It works poorly for a tower where units in the same building differ by floor, exposure, view, finish level, and parking. Appraisal districts often apply broad per square foot values by building, which means low floor and interior units are frequently over valued relative to what they would actually sell for.
That is your opening.
Building your case
The strongest evidence, in order:
- Recent closed sales of comparable units in your building, ideally in your stack or one with similar exposure. Sales closest to January 1 of the tax year carry the most weight.
- Equity comparison. If similar units in your building are appraised lower per square foot than yours, that inequality is itself a valid argument in Texas.
- Condition evidence. Photos and contractor estimates for deferred repairs, dated finishes, or issues the district cannot see from a desk.
- Special assessments. A pending large assessment affects market value and is worth documenting.
The process, briefly
Notices arrive in spring. You file a protest by the deadline on the notice. Most cases resolve in an informal meeting with an appraiser before ever reaching the review board. Bring organized evidence, be pleasant, and be specific.
If your time is worth more than the exercise, tax protest firms work on contingency. Many owners get a reasonable result on their own with an hour of preparation.
Do not forget the exemption
The homestead exemption is separate from the protest and it is the highest value paperwork you will file. Own it, live in it, file it. There is also an over 65 exemption with a tax ceiling that people leave on the table every year.
Build the case with the right comps
Travis County looks at your unit as part of a building, so the strongest protest evidence is other units in your building that sold below your assessed value per square foot. Sales from the prior calendar year carry the most weight. Pull them, normalize for floor and exposure, and present a clear per foot comparison rather than a story.
Condition arguments also work when documented. Photographs of dated finishes, a contractor estimate for needed repair, and any HOA notice of upcoming assessment all support a lower value.
The timeline
Notices generally arrive in the spring and the protest deadline follows about a month later. File online, then decide whether to settle at the informal hearing or push to the appraisal review board. Most condo protests resolve informally when the evidence is organized.
Do not forget the exemption
If the unit is your primary residence, confirm your homestead exemption is on file. It caps annual assessed value increases and reduces the taxable amount. Every year I find owners who have lived in a unit for three years and never filed. It is a short form and it is the highest return ten minutes in real estate.
Need closed comps in your building to support a protest? Email me. I pull them from the MLS feed and I do not charge for it.
Written by Adrian Salas, Realtor®, Austin Condo Specialist with Austin Marketing + Development Group. Market figures come from the Unlock MLS data feed that updates on this site throughout the day. Ask a question about your building.
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