Property Tax Inquiries Call 713.290.9700

About Us

O’Connor & Associates is the largest property tax consulting firm in the United States. O’Connor’s team of professionals possess the resources and unparalleled market expertise in the areas of property tax, cost segregation and commercial and residential real estate appraisals. The firm was founded in 1974 and employs more than 550 professionals worldwide.

With our proprietary protest filing system, we file more lawsuits and settle more binding arbitration cases than any other tax consulting firm in the nation.

  • O’Connor provides its customers with property tax protest values ranging from $5,000 to $100 million.
  • In 2016, the firm filed more than 175,000 protests on behalf of its residential and commercial clients which lowered assessed values by $2 billion. For the 2015 tax year, the firm lowered assessed values by more than $1.6 billion, resulting in an estimated tax savings of around $44 million (not including exemption data).

VALUES

O’Connor’s mission is to be the leading property tax advocate for taxpayers and to drive reforms in the Texas property tax appeal process. Our proven solutions continue to help taxpayers reduce their annual property tax rates. We are a pioneering expert in aggressive property tax reduction. O’Connor is also a leading expert in business personal property valuation. The book What You Need to Know about Personal Property Valuation was written by Patrick O’Connor, President of O’Connor & Associates.

Flooded by Harvey?

You may qualify for an IRS tax refund.

Click here to get the details!
This program is only for properties within the state of Texas


Enroll in Property Tax
Protection Program ™