White office room

Over 20 Years of Business and
Tax Law Experience

My practice has always been exclusively in the areas of business transactions, tax litigation and tax collection. As a result, I have concentrated experience in my practice areas. My relationship with you will be on a one-on-one basis throughout your matter. I will give you true personal service.

-John McDuff
John McDuff - Austin Business & Tax Attorney

“I would highly recommend John as someone who will help the little guy, when he gets run over by the big guy.”


“We operate in a foggy area, and John cleared us up.”


“I highly recommend John, especially if you need to negotiate with the IRS.”


“After looking at several attorneys to handle my case, I selected John.  It was the best decision I could have made.”

AV Peer Rating of 5 out of 5 for Mr. McDuff

The Law Office of John McDuff, P.C.

Practicing Business & Tax Law in Austin, Texas

The Law Office of John McDuff, P.C. in Austin, TX is a solutions-oriented firm that works tirelessly to address your business and tax issues. Handling every case personally, sole attorney, John McDuff, represents individuals and businesses in Austin, Texas. With over 20 years of experience practicing exclusively in business and tax law, McDuff has developed the knowledge to help his clients protect their assets. The Law Office of John McDuff, P.C. has assisted clients on cases with up to 25 million dollars at stake, and we excel at providing wise counsel when the stakes are high.

An AV Preeminent Rated Lawyer

At the Law Office of John McDuff, P.C., our ability to handle business and tax matters for our clients effectively and efficiently has earned the confidence of our clients and peers. John McDuff has earned an AV Preeminent® peer review rating from Martindale-Hubbell (a rating system through which experienced members of the bar and judiciary evaluate their peers). This rating indicates the highest level of performance in legal knowledge, analytical capabilities,
judgment, communication ability, and legal experience.

Austin Business Lawyer & Tax Attorney,
John McDuff

By intentionally limiting my practice to business and tax law for over 20 years, I provide creative and effective solutions for the following types of cases:

  • Business Transactions

    If you are a business owner in need of legal advice and/or contract expertise, the Law Office of John McDuff, P.C. can help. We work with our clients to ensure that their deals are consummated smoothly.

  • Tax Litigation

    When a tax controversy arises, businesses and individuals need to defend themselves against the IRS. Tax Lawyer, John McDuff, handles all types of complex tax disputes and related issues.

  • Tax Collection

    Is the government looking to collect taxes from you or your business? The Law Office of John McDuff, P.C. can help settle tax debts and minimize any IRS penalties.

Contact Us Today to Discuss Your Case

Because I am the only attorney at my law firm, every client receives my individual, undivided attention. I do not delegate legal tasks, opting instead to invest myself in my clients’ success. At my firm, clients can expect an individualized approach to each case, with the best legal support available.

If you need an Austin business lawyer or a tax attorney, please call our office at 512-457-1177 for a consultation. Or you can contact us online below.

The information that you obtain at this site is not, nor is it intended to be legal advice, and any use of this information will not create an attorney-client relationship.

We invite you to contact us to get advice.