You can apply for a credit card if you are 18 years old. According to information from Xicai.com, the minimum age requirement for applying for a credit card is 18 years old. However, the most important thing that banks value when approving credit cards is whether the applicant has a stable job and income, in order to judge whether the applicant has a good repayment profile. Therefore, you can apply for a credit card at the age of 18.