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.

On October 21, 2010, the New York Court of Appeals ruled on certified questions in two cases: Kirschner v. KPMG LLP ("Kirschner"), certified by the United States Court of Appeals for the Second Circuit, and Teachers' Retirement System of Louisiana v. PricewaterhouseCoopers LLP ("Teachers' Retirement"), certified by the Delaware Supreme Court, reiterating and strengthening the in pari delicto defense.