Yes. There is an age limit for credit card application, and you can apply for it if you are 21 years old. The application conditions for a credit card are generally: the main card applicant is between 18 and 60 years old (inclusive), and the supplementary card applicant is between 16 and 65 years old. Credit cards are also called credit cards. They are approved by commercial banks or credit card companies for credit-qualified consumers. Credit certificate issued.