Accrual start date for statutory default interest on labor court judgments in wage disputes

The Federal Labour Court (BAG) reversed the lower appellate decision and remanded the case with instructions to award interest on the claimed amount starting from December 4, 2012, thereby allowing the claimant to prevail on the merits while limiting the scope of monetary relief; the defendant bears the costs of the appellate and revisionary proceedings. The dispute concerned a labor law claim where the lower court had imposed a restriction on the accrual date of statutory interest, which the Supreme Court found erroneous upon review of the revisionary appeal. The decisive legal basis involved the application of statutory interest rules under German civil law principles as they apply to labor court judgments, specifically correcting the calculation period for default interest to align with the proper legal standard for deferred payments in this context.