Mark E. Matthews
Caplin & Drysdale
Mark E. Matthews Member

P: (202) 862-5082

F: (202) 429-3301

Washington, D.C. Office


Mr. Matthews focuses his practice on criminal tax enforcement, broad-based civil tax compliance, the Foreign Corrupt Practices Act (FCPA), white collar matters, and anti-money laundering matters. He also advises clients on the IRS voluntary disclosure program, with particular focus on disclosure related to offshore banking accounts.




Mr. Matthews was previously Global Co-Head of Anti-Money Laundering at Deutsche Bank, where he oversaw implementation of the Patriot Act. Prior to that, he was Chief of the IRS Criminal Investigation Division, the agency's investigative and law enforcement arm, renowned for its expertise in investigating financial crime, including tax, money laundering, narcotics, and terrorism-related matters.

Other government positions Mr. Matthews has held include Deputy Assistant Attorney General of the U.S. Department of Justice Tax Division (1994-1998), where he led the Department's criminal tax enforcement program, and Senior Advisor to the Treasury Department's Assistant Secretary for Enforcement (1993-1994), where he was Director of the Treasury Department's Anti-Money Laundering Task Force. Mr. Matthews was also an Assistant U.S. Attorney in the Southern District of New York and then a Deputy Chief of that office's Criminal Division, as well as special assistant to Director William H. Webster, first at the FBI and then at the CIA.

Practice Area(s)

Awards & Rankings

  • Chambers USA, 2010-Present
  • The Legal 500, Recommended, 2013-Present
  • The Legal 500, Top-Tier Firm, Tax - US Taxes - Contentious, 2015-Present
  • Best Lawyers in America, 2016-Present
  • Internal Revenue Service, Commissioner's Award
  • American Bar Association Rule of Law Initiative (ABA ROLI), International Justice-Sector Education and Training (IJET) Program International Pro Bono Award, 2018
  • The American Lawyer's Global Legal Award, Global Dispute of the Year: Investigations, Swiss Tax Settlements, 2015
  • Super Lawyers, Washington, D.C., 2016-Present
  • The Washingtonian, Top Lawyer, 2017-Present

Recent News

Click here for a full list of media coverage.

Speaking Engagements

Click here for a full list of speaking engagements.

Recent Publications

Click here for a full list of publications.


  • M.P.A., Princeton University, 1985
  • J.D., New York University School of Law, 1985
  • A.B., Harvard College, 1981, magna cum laude

Bar and Court Admissions

  • District of Columbia
  • District of Columbia Court of Appeals
  • U.S. Court of Appeals, District of Columbia Circuit
  • U.S. District Court, District of Maryland
View our non-mobile site Menu