On 15 December 2023, the Bundesrat approved the partial implementation of the contents of the Growth Opportunities Act in the Act to Promote the Secondary Credit Market. This includes changes to the interest limitation rule and adjustments resulting from the introduction of the Act for the Modernisation of Partnerships.
An ECJ advocated general has suggested the court rule that the German trade tax interest disallowance is not a "withholding tax" banned by the Interest and Royalties Directive.