Serving Texas · Illinois · Georgia · New York — Commercial in 45 states Blog FAQs Client Login ↗ 713.290.9700
Residential
Commercial
Services
Resources
Areas We Serve
About Us
Contact Us Sign Up Free 713.290.9700
Residential property tax reduction

Reduce your property taxes — pay only if you save.

Expert property tax reduction services for Texas homeowners, with 50+ years of experience. There is never a fee unless we reduce your property taxes — enter your address to begin.

$213M saved for clients in 2025 Never a fee unless we reduce your taxes As seen on CNBC · CNN · Fox News
As featured on
You pay nothing unless we lower your bill

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
Phone Not provided

Potential Tax Savings For Your Property

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

Enroll in three simple steps

No paperwork and no upfront cost — you pay only if we save you money.

1

Search your property

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

2

Claim your discount

Review your assessment and estimated savings, then confirm a few details.

3

Complete enrollment

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

What we do

Property tax services for every property

One firm for residential, commercial, and specialized tax work.

Residential

Annual protests for homeowners on a contingent fee — you pay only if we lower your bill.

Commercial

Commercial property tax reduction across 45 states, backed by market and income analysis.

Business Personal Property

BPP rendition and appeals that reduce the taxable value of your business assets.

Cost Segregation

Engineering-based studies that accelerate depreciation and unlock major first-year deductions.

Concierge Services

A dedicated Client Success Consultant, on-site support, and exemption optimization.

Appraisals & Expert Witness

Commercial appraisals, litigation support, and expert witness testimony backed by data.

Why O'Connor

The most protection, for the lowest risk

Reasons Texas owners have trusted us for over 50 years.

Contingent fee

There is never a fee unless we reduce your property taxes. No reduction, no cost.

Automatic annual protests

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

Every appeal phase

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

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.

Serving 4 states

Residential help in Texas, Illinois, Georgia and New York; commercial in 45 states.

Instant estimate

See what you could save

On average, our clients' homes were over-assessed by about 8.65% — roughly $764 in potential tax savings. Slide to your home's value for a rough estimate; your actual result depends on your county and property.

$450,000
Estimated annual savings
$1,485
Illustrative only — based on a typical reduction × average Texas tax rate.
Check my exact number
Our guarantee

You don't pay unless we save you money

Our fee is a share of the taxes we save you — if we don't reduce your bill, you owe nothing.

Step 1

We review

We analyze your appraisal district record and build an evidence-based case.

Step 2

We protest

We represent you through every phase of the appeal, at no upfront cost.

Step 3

You save

You pay only a share of what we save — and nothing at all if we don't.

From the blog

Property tax insights

The latest from our team.

Table of Contents Does Texas Have Estate or Inheritance Taxes? Texas Probate Property Taxes During Probate Property Taxes After...

Table of Contents The Homestead Exemption Over-65 Homestead Exemption Disabled Persons Exemption Disabled Veterans Exemption Surviving Spouse of a...

Table of Contents Appeal Deadlines Is a Post-Administrative Appeal Appropriate? What Separates Post-Administrative Appeals from Regular Protests? Binding Arbitration...

Table of Contents Function Composition of the Board How Members are Appointed The Hearing Season How Hearings are Organized...

Nationwide reach, local expertise

Offices near you

Houston
2200 North Loop W, Ste 200
713.290.9700
Dallas
By appointment
713.290.9700
Austin
By appointment
713.290.9700
San Antonio
By appointment
713.290.9700
El Paso
By appointment
713.290.9700
Amarillo
By appointment
713.290.9700
Atlanta, GA
By appointment
713.290.9700
Chicago, IL
By appointment
713.290.9700
Stay informed

Subscribe to our newsletter

Property tax deadlines, savings tips, and O'Connor updates — straight to your inbox.

  • This field is for validation purposes and should be left unchanged.