Credit Suisse Services AG has admitted to conspiring with U.S. taxpayers to conceal over $4 billion in offshore accounts, leading to a significant $511 million fine as part of an agreement with the U.S. Department of Justice. The Swiss bank has been implicated in helping wealthy Americans evade taxes, and a related settlement will also see UBS take on the costs, as they work to resolve a tax probe involving the previous activities of Credit Suisse. This hefty fine is part of broader efforts by U.S. authorities to clamp down on tax evasion schemes utilized by affluent clients.