Meet Your Attorney & Advisor
John Cox
Biography
John Cox is the founder of Cox Business & Tax Law, where his primary practice centers on strategic tax planning for businesses and high‑net‑worth individuals. He focuses on designing long‑term tax strategies that minimize liabilities, optimize cash flow, and leverage the full power of the tax code. In addition to planning, John represents both businesses and individuals before the Internal Revenue Service and state taxing authorities, guiding clients through examinations, appeals, and complex tax controversies.
John holds a Master of Laws (LL.M.) in Taxation from Northwestern University School of Law, one of the nation’s premier tax programs. He earned his Juris Doctor from Texas A&M University School of Law with a Concentration in Business Law, and received his Bachelor of Business Administration in Finance from Texas Christian University.
Before founding Cox Business & Tax Law, John gained extensive experience at one of the world’s largest accounting firms advising clients ranging from Fortune 100 companies to early‑stage startups, helping them secure the tax benefits and incentives necessary to fuel growth. Over the course of his career, he has claimed more than $500 million in tax credits by applying advanced tax planning strategies and has defended these credits through IRS and state examinations.
A native of Dallas, Texas, John enjoys spending his free time with his wife, their twin toddler girls, and their Great Pyrenees. He loves traveling, exploring new restaurants, and—despite years of heartbreak—remains loyal to his Dallas sports teams.
Education
- Northwestern University School of Law, LLM Taxation
- Texas A&M University School of Law, JD
- Texas Christian University, BBA, Finance
Professional Affiliations
- State Bar of Texas
- State Bar of Illinois
- Texas Bar Association – Tax Section, Tax Controversy Committee
- Texas Bar Association – Tax Section, State and Local Tax Committee
- Texas Bar Association – Tax Section, Estate and Gift Tax Committee
- American Bar Association – Tax Section
- Association for Corporate Growth – Dallas Chapter

Understand the details.
Keep sight of the whole.
What guides our work
Personal attention. Purposeful planning.
One connected view
Business, tax, and estate considerations brought into the same conversation.
A direct relationship
The attention of a boutique practice, with your priorities at the center.
Clear communication
Focused discussions that help you understand the work and the next steps.
A thoughtful next step
Let's talk about what comes next.
Your business. Your priorities. Your future.
Start a conversation with Cox Business & Tax Law.