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50+ years · Texas's property tax experts

Lower your property taxes — pay nothing unless we win.

We protest your assessment every year and only get paid when we cut your bill. Not even a nickel otherwise. Start with your address — it takes about two minutes.

$213M saved in 2025 No fee unless we reduce As seen on CNBC · CNN · Fox
🎁 New client bonus — $25 gift card for enrolling

Start the process to reduce your property taxes — enter your property address below

    Choose your property from the list. We only need the address or account number to start.

    We Found Your Property Information

    Property Address —
    Property Type—
    Account Number—
    Owner Name —
    Email Not provided
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    Potential Tax Savings For Your Property

    Calculating…
    May Be Over-Assessed By
    —
    Potential Tax Savings
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    * Tax savings amount is based on the average tax rate for your state and does not include cap on taxable value or exemptions.
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    As featured on
    50+
    Years of experience
    $213M
    Saved for clients in 2025
    $0
    Fee unless we reduce
    45
    States for commercial
    How it works

    Enroll in about two minutes

    Three simple steps — no paperwork, no upfront cost.

    1

    Search your property

    Enter your address or account number. We instantly pull your appraisal district record.

    2

    Claim your discount

    See your potential over-assessment and estimated savings, then confirm a few details.

    3

    Complete enrollment

    E-sign and you're done. We protest your taxes automatically — every single year.

    Instant estimate

    See what you could save

    Slide to your home's assessed value. Estimate assumes a typical over-assessment and Texas tax rate — your actual result depends on your county and property.

    $450,000
    Estimated annual savings
    $1,485
    Based on ~15% assessment reduction × 2.2% avg tax rate.
    Check my exact number
    Why O'Connor

    The most protection, for the lowest risk

    Six reasons homeowners have trusted us for over 50 years.

    Contingent fee

    You pay nothing unless we actually lower your tax bill. No reduction, no fee.

    Automatic annual protests

    Enroll once and we protest every year — you never have to remember a deadline.

    All three appeal phases

    Informal hearing, ARB, and litigation or binding arbitration — we pursue every level.

    Binding arbitration

    When it helps your case, we escalate to arbitration — an option many firms don't offer.

    More effective

    Deep market data and licensed experts build a stronger case than a DIY protest.

    Proven track record

    Over $213 million saved for clients in 2025 alone — and 50+ years behind it.

    The appeal process

    We fight through every level

    Most firms stop at the first hearing. We don't.

    Phase 1

    Informal hearing

    We present evidence directly to the appraisal district and resolve most cases here.

    Phase 2

    Appraisal Review Board

    If needed, we take your case to the independent ARB for a formal hearing.

    Phase 3

    Litigation / arbitration

    When it's worth pursuing, we escalate to binding arbitration or litigation.

    Limited-time welcome bonus

    Get a $25 gift card just for enrolling

    New residential clients receive a $25 gift card after enrollment. One more reason to start today.

    Claim my bonus
    Questions

    Property tax protests, explained

    How does O'Connor lower my property taxes?

    We review your appraisal district record, build an evidence-based case using market and equity data, and protest your assessed value through every available phase — informal hearing, the ARB, and arbitration or litigation when warranted.

    What does it cost?

    Nothing unless we reduce your taxes. Our fee is contingent — a share of the savings we secure. If we don't lower your bill, you owe nothing, not even a nickel.

    Why should I protest every year?

    Appraisal districts re-assess annually, so your value can climb every year. Enrolling once means we protest automatically each year — you never miss a deadline.

    What if I missed the protest deadline?

    There may still be options depending on your county and situation. Enter your address and we'll tell you what's possible for your property.

    What types of property do you handle?

    Residential, commercial, and business personal property (BPP). We help residents in TX, IL, GA and NY, and offer commercial services in 45 states.

    From the blog

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    Appeals

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    Read more →
    Basics

    What is the ARB, and why does it matter?

    Read more →
    Nationwide reach, local expertise

    Offices near you

    Houston
    2200 North Loop W, Ste 200
    Dallas
    By appointment
    Austin
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    San Antonio
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    El Paso
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    Amarillo
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    Lubbock
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    Waco
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    Atlanta, GA
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    Chicago, IL
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