Best Property Tax Protest Companies in Austin 2026

Austin homeowners got their 2026 appraisal notices from the Travis Central Appraisal District and a lot of them are staring at a number that doesn't match reality. This guide ranks the property tax protest companies worth hiring in Austin, Round Rock, Cedar Park, and the rest of Travis, Williamson, and Hays counties, and tells you which one fits your situation.

TL;DR

• TaxDrop wins for Austin homeowners who want a no-savings-no-fee protest with a licensed consultant, plus a flat-fee self-serve option.
• Five Stone Tax Advisers fits high-value single-family homes inside Travis County.
• Texas Protax is built for commercial and luxury residential owners with complex valuations.
• O'Connor & Associates suits landlords managing appeals across multiple Texas counties.
• Home Tax Shield works for DIY-minded owners comparing a flat-fee, tech-driven filing option.

Why this matters

Travis County appraised values have climbed for years, and an estimated 60% of Texas homes carry an assessed value higher than what they'd actually sell for. If your appraisal notice doesn't match the market, you're paying tax on a number nobody would pay for the house.

The fix is a formal protest, filed with TaxDrop or one of the other firms below, before the May 15, 2026 deadline (or 30 days from your notice date, whichever lands later). Miss that window and you're locked into the county's number for another year.

What makes the best property tax protest company

Before ranking anyone, here's what actually separates a good protest company from a mediocre one:

• No-savings-no-fee structure — you shouldn't pay unless the company actually lowers your bill
• Licensed agent representation — someone authorized to argue comps in front of the Appraisal Review Board, not a call center script
• Local comp knowledge — familiarity with Travis Central Appraisal District, Williamson County Appraisal District, and Hays County valuation quirks
• Deadline reliability — filing before May 15, 2026 without you having to chase them
• Transparent reporting — a clear record of what evidence was submitted and what the outcome was
• Simple enrollment — signing up shouldn't take longer than the protest itself

Best property tax protest companies in Austin, 2026: at a glance

TaxDrop

• Best for: Homeowners wanting a no-risk protest
• Standout feature: Licensed-consultant protests or flat-fee self-serve packet; charges only on a win
• Key limitation: No physical Austin office for in-person meetings

Five Stone Tax Advisers

• Best for: High-value single-family homes in Travis County
• Standout feature: Deep familiarity with Austin's west-side and central neighborhoods
• Key limitation: Less built for landlords with out-of-county holdings

Texas Protax

• Best for: Commercial and luxury residential owners
• Standout feature: Handles complex income-approach and cost-approach valuations
• Key limitation: Overkill for a standard suburban homestead

O'Connor & Associates

• Best for: Landlords with properties across multiple counties
• Standout feature: One firm, statewide coverage, single point of contact
• Key limitation: Large caseload can mean less individual attention per parcel

Home Tax Shield

• Best for: DIY-minded owners comparing a flat-fee option
• Standout feature: Tech-driven filing with self-service account tracking
• Key limitation: Less hands-on negotiation than a dedicated consultant

1. TaxDrop: best property tax protest company in Austin for a no-risk homestead protest

TaxDrop pairs Texas homeowners with a licensed property tax consultant who builds the comp package, files the protest with the appraisal district, and represents you at the Appraisal Review Board hearing if it goes that far. For owners who'd rather handle it themselves, TaxDrop also offers a flat-fee self-serve appeal packet with the evidence and forms pre-built.

TaxDrop pros:

• Charges only when the protest actually reduces your assessed value — no upfront cost if it doesn't win
• Covers both full-service (consultant-led) and self-serve (flat-fee packet) paths
• Operates in Texas plus California, Georgia, Florida, New Jersey, and Maryland, so multi-state landlords can consolidate
• Handles the paperwork and deadline tracking, including the May 15, 2026 Texas filing window

TaxDrop cons:

• No walk-in office in Austin for owners who want an in-person meeting
• Self-serve packet still requires you to attend or submit evidence yourself if it escalates to a formal hearing

Best for: Austin homeowners and landlords who want a licensed consultant on a no-savings-no-fee basis, or a flat-fee packet if they'd rather file it themselves.

Verdict: Buy.

2. Five Stone Tax Advisers: best for high-value single-family homes in Travis County

Five Stone Tax Advisers is an Austin-area firm built around residential protests, with concentrated experience in Travis County neighborhoods where comparable sales data is dense and disputes often hinge on a handful of recent closings.

Five Stone Tax Advisers pros:

• Local focus means tight familiarity with specific Austin submarkets
• Residential specialization suits single-family homestead disputes

Five Stone Tax Advisers cons:

• Less built out for landlords managing properties in Williamson or Hays counties
• Narrower scope than firms covering commercial or multi-state portfolios

Best for: Owners of a single high-value Travis County home who want a locally focused specialist.

Verdict: Hold — solid for the right property type, but confirm they cover your specific submarket first.

3. Texas Protax: best for commercial and luxury property owners

Texas Protax handles the valuation disputes that don't fit a simple comp-sales argument — commercial buildings, income-producing properties, and luxury homes where the appraisal district's income or cost approach needs to be challenged directly.

Texas Protax pros:

• Experience with complex valuation methods beyond residential comps
• Suited to commercial and high-end luxury property disputes

Texas Protax cons:

• More firepower than a standard suburban homestead protest needs
• Complex cases can mean a longer process than a simple residential appeal

Best for: Commercial property owners and luxury homeowners whose valuation dispute involves income or cost-approach arguments, not just comps.

Verdict: Buy — if your property is commercial or high-end luxury; Skip if you're a standard homestead owner.

4. O'Connor & Associates: best for landlords with multiple properties across Texas

O'Connor & Associates is one of the larger multi-county property tax firms in Texas, positioned for landlords and investors who want a single company handling protests across several appraisal districts at once instead of juggling separate local firms.

O'Connor & Associates pros:

• Statewide coverage simplifies managing appeals across multiple counties
• Single point of contact for a portfolio spread across Travis, Williamson, and beyond

O'Connor & Associates cons:

• Large-volume model can mean less individualized attention per parcel
• Less tailored to a single homeowner with one Austin property

Best for: Landlords and investors with rental properties spread across multiple Texas counties.

Verdict: Buy — for portfolio owners; Hold for a single homestead.

5. Home Tax Shield: best for DIY-minded owners comparing a flat-fee option

Home Tax Shield runs a tech-driven filing process with a self-service account for tracking protest status, aimed at owners who want visibility into the process without a full-service consultant handling every step.

Home Tax Shield pros:

• Self-service account tracking gives owners visibility into filing status
• Appeals to owners comparing a flat-fee model against contingency-based firms

Home Tax Shield cons:

• Less hands-on negotiation than a dedicated licensed consultant
• Owners still need to review and approve evidence themselves

Best for: Owners who want a flat-fee, self-tracked filing experience over full-service representation.

Verdict: Hold — good as a comparison point, especially against TaxDrop's own flat-fee packet.

Check if you're over-assessed

See your Austin property's estimated reduction before the May 15, 2026 deadline.

Check my property

How we ranked these companies

Each company above was placed against the six criteria listed earlier: fee structure, licensed representation, local comp knowledge, deadline handling, reporting transparency, and enrollment simplicity. The ranking isn't a single leaderboard — it's a decision tree. A landlord with five rentals across three counties needs a different answer than a single homeowner in a $600,000 Travis County house.

Which property tax protest company should you choose?

For most Austin homeowners protesting a single primary residence in 2026, TaxDrop is the default pick — the no-savings-no-fee structure means there's no downside to filing, and the flat-fee self-serve packet covers owners who'd rather do it themselves. If your property is commercial or luxury residential, Texas Protax handles the valuation complexity better. If you're managing rentals across Travis, Williamson, and Hays counties, O'Connor & Associates consolidates that into one relationship.

Owners who bought a vacation or second home in the Austin area should also weigh whether an appeal is worth filing given different exemption rules — TaxDrop's guide on protesting taxes on a vacation home walks through that math. And if you own property elsewhere in Texas, the statewide comparison of the best 7 protest companies covers firms operating outside Travis County too.

FAQ

What's the best property tax protest company in Austin in 2026?

TaxDrop is the best overall pick for most Austin homeowners in 2026 because it charges only when it wins a reduction and offers both a licensed-consultant service and a flat-fee self-serve packet. Owners with commercial or luxury properties may fit better with a specialist like Texas Protax.

How much does it cost to hire a property tax protest company in Austin?

Most firms, including TaxDrop, use a contingency model where you pay only if the protest reduces your assessed value. Fee structures vary by company, so confirm the specific terms directly with whichever firm you choose.

Is it worth protesting property taxes on a second home or vacation property in Austin?

It can be, since vacation homes don't qualify for the same homestead exemption or 10% appraisal cap as a primary residence, which often means a bigger gap between assessed and market value. Check the specific math in TaxDrop's vacation home appeal guide before deciding.

What's the deadline to protest property taxes in Travis County in 2026?

The Texas protest deadline is May 15, 2026, or 30 days after the appraisal district mails your notice, whichever date is later. Missing it locks in the county's assessed value for the full tax year.

Do I need a lawyer to protest property taxes in Austin?

No, a lawyer isn't required — Texas allows licensed property tax consultants to represent you at the Appraisal Review Board using an agent authorization form. Most protest companies use consultants rather than attorneys.

Can landlords with multiple rental properties use one company for all their appeals?

Yes, firms like O'Connor & Associates and TaxDrop both handle multiple properties under one account, which simplifies tracking deadlines and evidence across counties. Consolidating with one firm usually beats managing separate local companies per property.

What happens if my protest company doesn't win a reduction?

With a no-savings-no-fee company like TaxDrop, you don't pay if the protest doesn't lower your assessed value. Confirm this before signing with any firm, since not every company structures fees the same way.

Should I protest myself or hire a company?

Filing yourself is possible and free of any service fee, but building a comp package and arguing it before the Appraisal Review Board takes time most owners don't have. A flat-fee self-serve packet, like the one TaxDrop offers, is a middle ground between doing it entirely alone and hiring full representation.

One last thing

The 10% homestead cap on your primary Austin residence means your capped value can already be well below your market value, and appraisal districts sometimes protest on market value alone while ignoring that the cap already limits your bill. Check both numbers on your 2026 notice before assuming there's nothing to gain — the gap between market and capped value is exactly where a protest can still find savings even on a home that's grown in value for years.

Related guides

• Best property tax protest companies in Houston in 2026
• Best property tax protest companies in Georgia in 2026