Douglas (Doug) O'Donnell is currently serving as the IRS Deputy Commissioner, Services and Enforcement. In this role, he will work on the Taxpayer First Act, which included work to reimage the agency's tax administration and work to improve taxpayer service and enforcement.

Prior to his current executive appointment, Mr. O'Donnell served as the Commissioner of the Internal Revenue Service's Large Business and International (LB&I) Division headquartered in Washington, D.C. In that role, he led tax administration activities for corporations, subchapter S corporations, and partnerships with assets greater than $10 million and he was responsible for administering the tax law that affects individuals with international activity. He served as the United States Competent Authority in administering the operating provisions of tax conventions and on sensitive and controversial issues related to treaty negotiations.

Previously, Mr. O'Donnell served as the Deputy Commissioner (International) in LB&I. In this role, he was responsible for planning, developing, directing, and implementing a comprehensive servicewide tax administration program that enhanced compliance with international tax laws, ensured consistency in taxpayer treatment, continuously improved systems and processes and effectively allocated resources to meet servicewide international tax administration priorities.

Mr. O'Donnell previously served in other executive positions including the Assistant Deputy Commissioner, International; Director, Competent Authority & International Coordination; Director of International Compliance, Strategy & Policy; Deputy Director, Pre-Filing and Technical Guidance; and the Director of Field Operations, Heavy Manufacturing and Transportation Industry.

Mr. O'Donnell began his career with IRS in 1986 as a revenue agent in Washington, D.C. He holds a Bachelor's of Science degree in accounting from the University of Maryland, College Park, and is licensed as a Certified Public Accountant in the state of Maryland.