If it is overdue, interest will be charged. If the credit card payment date is the 8th and you pay on the 10th, it will be considered a late payment. Even if you are just two days late on your repayment, the bank may charge a certain amount of overdue interest on the overdue balance. Different banks have different overdue interest rates, which are usually a few thousandths of the daily interest (such as 50,000).