1. Whether the other party should pay back the credit card overdraft without telling the other party should be analyzed according to the specific situation:
(1) The debts incurred by both spouses * * * with the same signature or one spouse's ratification afterwards * * with the same meaning should be paid back.
(2) During the marriage relationship, the debts incurred by one spouse in his own name for the daily needs of the family shall be repaid together;
(3) The people's court will not support the debts incurred by one of the husband and wife during the marriage relationship that exceed the daily needs of the family in their own name, and the creditor claims rights on the grounds that they belong to the same debts of the husband and wife.
2. Legal basis: Article 164 of the Civil Code of the People's Republic of China
The debts incurred by both husband and wife * * * with the same signature or by one of them with the same intention after ratification, and the debts incurred by one of them in their own name for the daily needs of the family during the marriage relationship belong to the same debts of husband and wife.
The debts incurred by one of the husband and wife in their own name during the marriage relationship beyond the daily needs of the family do not belong to the same debts of the husband and wife; However, the creditor can prove that the debt is used for the husband and wife's * * * life, * * * production and operation, or based on the same meaning of both husband and wife.
2. What are the legal provisions on the same debt of husband and wife?
The legal provisions on the same debt of husband and wife are as follows:
1. The same debt of husband and wife refers to the debt that both husband and wife * * * sign together or one of them ratify afterwards, and one of them expresses the same meaning, and one of them needs the daily life of the family in his own name during the marriage relationship.
2. If the property is insufficient to be paid off or the property belongs to each other, both parties shall agree to pay off the property; If the agreement fails, the people's court shall make a judgment.