Illegal. Displayed according to query on Hualv.com. When the money owed to others has been executed, it is illegal to pay off the credit card first, as stipulated in Article 313 of the Criminal Law. During the execution process, the person subject to execution knows that he has an execution obligation, but fails to truthfully declare his property to the people's court, and gives priority to repaying debts that have not been determined by the court's judgment. This is a refusal to execute the judgment or ruling of the people's court when he has the ability to execute it. The circumstances are serious. This constitutes the crime of refusing to execute a judgment or ruling. Therefore, the defaulter's first payment of the credit card is not giving priority to repaying debts that have not been determined by the court, which constitutes the crime of refusing to execute, so it is illegal.