Thomas Hansen was born in Chicago, Illinois and grew up on the South Side of Chicago and Park Ridge, Illinois. Thomas lives in Park Ridge, with his wife and three children.

Thomas received a Bachelor of Science in Accountancy from Northern Illinois University, a Certified Public Accountant Certificate from the University of Illinois, a Master of Science in Taxation from DePaul University, a Juris Doctor with Distinction from John Marshal Law School.

Thomas is a member of the Illinois Bar Association, Chicago Bar Association, the Northwest Suburban Bar Association, American Association of Attorney-Certified Public Accountants, Illinois Society of Certified Public Accountants, and the American Institute of Certified Public Accountants.

Before starting his practice in 1996, Thomas previously was employed by the Internal Revenue Service for over twenty-three years: five years as an Internal Revenue Agent, five years as an International Examiner, and over thirteen years as an Appeals Officer.

Since 1996, Thomas has limited his practice to resolution of tax controversies, estate planning, asset protection, and Medicaid Planning.