Bradley Charles Birkenfeld (born February 26, 1965) is an American banker and whistleblower whose disclosures to the United States government led to a massive fraud investigation against the Swiss bank UBS and other banks that had enabled tax evasion by U.S. taxpayers. In February 2009, as a result of the information he gave U.S. authorities, the U.S. Department of Justice (DOJ) announced it had reached a deferred prosecution agreement with UBS that resulted in a $780 million fine and the release of previously privileged information on American tax evaders. As a result of the financial recoveries facilitated by his whistleblowing, Birkenfeld received a $104 million award from the IRS Whistleblower Office in September 2012.
The record-breaking whistleblowing award came less than six weeks after Birkenfeld had been paroled from prison, where he had been incarcerated for abetting tax evasion by one of his clients. Despite prosecutors recommending a lighter sentence due to his ongoing cooperation with federal authorities, in August 2009, Birkenfeld was sentenced to 40 months in prison and fined $30,000. Many advocacy groups from around the world criticized Birkenfeld's prosecution and sentence on the grounds that it would discourage financial industry whistleblowers. Birkenfeld was released from prison to a halfway house in New Hampshire on August 1, 2012 and was released and put on probation on November 29, 2012.
The erosion of Switzerland's fabled bank secrecy that began when Switzerland amended its federal banking law in 2009 in the wake of the UBS scandal, a cycle that culminated when Switzerland officially signed the Convention on Mutual Administrative Assistance in Tax Matters on 15 October 2013, began with Birkenfeld's revelations. Signing the convention, an international tax treaty with nearly 60 signatories that facilitates the exchange of tax data between countries, represents a rollback of Switzerland's status as a tax haven for offshore assets.