Photo of Kevin F. Sweeney

Kevin F. Sweeney

Senior Counsel


Loyola University Maryland, B.B.A. (Accounting) 2002

New York Law School, J.D. 2005 (Cum Laude)


U.S. Department of Justice, Tax Division Outstanding Attorney Award – 2013 & 2015

Listed, The Legal 500 U.S. – Tax Controversy 2017

Legal 500 Top Tier

Bar Admissions


New Jersey

New York

Court Admissions

United States Supreme Court

United States Court of Appeals for the Armed Forces

United States District Court for the District of New Jersey

United States Tax Court

United States Court of Federal Claims

United States Army Court of Criminal Appeals


Kevin Sweeney is a former federal tax prosecutor with over a decade of experience. His practice focuses on high-stakes tax matters, white-collar criminal defense, and corporate investigations for high and ultra-high net worth individuals, business owners, and private and public companies worldwide. Kevin’s experience and longstanding connections enable him to anticipate government action, expertly navigate clients through difficult situations, and deliver arguments that resonate with judges, juries, prosecutors, and federal and state tax authorities.    

Before joining the firm, Kevin was a trial attorney for the U.S. Department of Justice, Tax Division (DOJ). At DOJ, he led many of its most successful tax cases including offshore banking cases against Swiss banks BSI SA, Union Bancaire Privée (UBP) SA, and Edmond de Rothschild SA, which collectively paid over $440 million in penalties. Kevin was one of a select team of attorneys assigned to DOJ’s Swiss Bank Program (SBP). As a SBP attorney, Kevin investigated, reviewed, and assessed bank employee misconduct, internal controls, risk assessments, FATCA compliance, and AML procedures. He also identified, investigated, recommended for IRS audit, and criminally prosecuted U.S. foreign bank account holders and facilitators such as bankers, attorneys, and asset managers. As the first former SBP attorney in private practice, Kevin is uniquely positioned to counsel financial institutions, asset managers, professional services firms, and executives on U.S. regulatory and enforcement issues and to represent U.S. citizens and residents with foreign bank accounts in criminal investigations, audits, voluntary disclosures, streamline filings, and IRS tax compliance matters.  

Kevin represents clients in federal and state tax audits, civil tax litigation, and tax collection matters. His skill set is especially suited for sensitive audits, litigation, and collection matters where penalty, fraud, or criminal issues could arise. Kevin has investigated or litigated civil tax issues concerning captive insurance, FBARs, controlled foreign corporations (CFCs), previously taxed income (PTI), foreign tax credits, passive loss limitations exceptions for real estate professionals, employment tax, mark-to-market elections for day traders, hobby loss rules, like-kind exchanges of real estate, tax shelters, and state sales tax and residency rules.

Kevin is a seasoned white-collar criminal defense attorney. In addition to his position at DOJ, he has served as a Special Assistant United States Attorney in the Districts of Colorado and the Eastern District of Virginia and as a prosecutor and appellate attorney in the United States Army Judge Advocate General’s (JAG) Corps. Kevin has investigated and litigated dozens of federal white-collar criminal cases throughout the country including tax evasion, tax preparer, employment tax, FBAR, money laundering, currency structuring, Foreign Corrupt Practices Act (FCPA), public corruption, and other financial fraud matters. Cases Kevin has litigated have been covered by Fortune, Bloomberg, and The Financial Times.

Kevin is a judge advocate (JAG) in the United States Army Reserve. He served on active duty from 2006-2010. Kevin deployed to Baghdad, Iraq in 2006 with the 4th Infantry Division where he advised commanders on criminal law issues and internal investigations into serious combat-related incidents. Upon returning from Iraq, he served first as a prosecutor in Fort Hood, Texas and then as an appellate attorney in Washington, DC. As a JAG, Kevin litigated dozens of criminal cases and appeals.  

Kevin is admitted to practice law in New York, New Jersey, and Pennsylvania. 

Previous Experience  

  • Led the investigation and negotiation of non-prosecution agreements against Swiss Banks BSI SA, Union Bancaire Privée (UBP) SA, and Edmond de Rothschild SA pursuant to DOJ’s Swiss Bank Program (SBP) requiring the banks to pay $211 million, $187 million, and $45 million in penalties respectively, which collectively represented one-third of the total penalties collected by DOJ pursuant to the SBP.
  • Led the investigation and negotiation of a non-prosecution agreement against Swiss asset management firm Finacor SA, one of the only criminal tax settlements against a foreign asset management business in United States history.
  • Investigated and prosecuted five preparers employed at Mo’ Money Taxes in the Eastern District of Virginia for their involvement in one of the largest false tax preparation schemes in United States history.  
  • Trial Attorney, U.S. Department of Justice, Tax Division (2010-2016)
  • Major, U.S. Army Judge Advocate General’s Corps – Reserves (2011-2016)
  • Captain, U.S. Army Judge Advocate General’s Corps – Active Duty (2006-2010)

Professional Affiliations

  • American Bar Association, Criminal Justice Section, White-Collar Crime Committee
  • American Bar Association, Taxation Section, Civil and Criminal Tax Penalties Committee




Seminars & Presentations



Articles & Publications