On September 15, 2008, Lehman Brothers declared bankruptcy, an event considered by many to mark the beginning of the credit crisis of 2008–2009 and the unprecedented public policy responses that followed. Much has been written about the multiple contributing factors to the crisis, ranging from predatory lending to Federal Reserve interest rate policy.

Cancellation of debt a key element of most restructurings generally triggers taxable income. The German tax authorities had issued an administrative decree (the "Tax Restructuring Decree" - Sanierungserlass), however, declaring that, upon the satisfaction of certain requirements and conditioned on forfeiture of any loss carry forwards, the cancellation of debt income ("CODI") would not be taxed.