No fee unless we save you money on your taxes

Sales and Use Tax

  • Comprehensive Refund & Exposure Reviews
  • Return Preparations and Filing
  • Audit Defense / Review
  • Nexus Study and Evaluation
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Real Estate Tax

  • Assessment Analysis
  • Appeals at Informal, local, and State levels
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Personal Property Tax

  • Compliance Review and Analysis
  • Annual Compliance Reporting
  • Inventory Analysis
  • Fair Market Value Appeals
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16,500 Cases Reviewed and counting

50 States and Canada

Over $78 Million In Tax Savings

30+ Years of Experience

Former Auditors & CPAs

Industries Served

These are just a few of the many industries we've found savings for. Read our testimonials to see the wide range of companies we serve big and small.


“The Brennan Group has been routinely saving us money for years. We have properties in several different states and their professionals in each location know the local market as well as the local individuals responsible for setting the values. They achieve results beyond the competition due to their in-depth knowledge of the market and their detailed analysis of each property. They treat each case as if it were their own property.”

White Company

Thomas J. White - President

“WOW!! The Brennan Group continues to amaze me! Even if we don’t think we can save anymore they always seem to get the job done! We have worked with them for the last 10 years and hope to continue for many more!”

J.R. Mayer Management, Inc.

Kelly J. Kuhn

“The Brennan Group's technical advice and service delivery rates among the best in our SALT professional network.”

Graham Packaging Company, L.P.

Rodney H. Gingrich, Manager Sales/Use and Property Taxes

No Fee Unless We Find You Money

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Recent Blog Posts

How to Handle Your Residential Real Estate Tax Appeal

How to Handle Your Residential Real Estate Tax Appeal   Is your county issued tax bill too high?   Follow […]

The Brennan Group specializes in managing and reducing sales & use, real estate and personal property taxes. Our team is a mix of ex auditors, top lawyers, and tax experts with over 30 years of experience.
The Brennan Group is headquartered in St. Louis, MO - The "Gateway to the West"! Through our network of strategic partners, we connect with companies both big and small all across the United States of America and internationally.