Legal analysis: The standard for credit card registration is 50,000 yuan, which is a principal of 50,000 yuan, excluding interest, compound interest, late payment fees, handling fees and other fees charged by the card-issuing bank.

Legal basis: "Interpretations of the Supreme People's Court and the Supreme People's Procuratorate on Several Issues Concerning the Specific Application of Laws in Handling Criminal Cases Obstructing the Management of Credit Cards" The amount of malicious overdraft in paragraph 1 of Article 9 refers to the criminal case filed by the public security organ The actual overdraft principal amount that has not yet been repaid does not include interest, compound interest, late payment fees, handling fees and other fees charged by the card-issuing bank. The amount returned or paid shall be deemed as the return of the actual overdraft principal.