Legal analysis: it is not illegal for couples to swipe their credit cards during marriage. According to the relevant national laws and regulations, all the property of both parties pledged in marriage belongs to common property, and credit card expenditure also belongs to common debt.

Legal basis: Article 1062 of the Civil Code of People's Republic of China (PRC), the following property acquired by husband and wife during the marriage relationship is the common property of husband and wife, which belongs to them jointly:

(1) Wages, bonuses and remuneration for labor services;

(2) Income from production, operation and investment;

(3) Income from intellectual property rights;

(4) Inherited or donated property, except as provided for in Item 3 of Article 1063 of this Law;

(5) Other property that should be jointly owned.

Husband and wife have equal rights in dealing with common property.