Legal basis: Measures for the Administration of Bank Card Business
Article 21 When a credit card holder chooses the minimum repayment method or uses a card that exceeds the credit limit approved by the issuing bank, he will no longer enjoy the interest-free repayment period, and will pay overdraft interest at the prescribed interest rate for the unpaid part from the bank bookkeeping date. Credit card holders who withdraw cash or quasi-credit card overdrafts do not enjoy interest-free repayment period and minimum repayment amount, but should pay overdraft interest calculated at the prescribed interest rate on the cash transaction amount or overdraft amount from the bank bookkeeping date.
Article 22 The issuing bank shall charge the cardholder the overdue fine of 5% of the outstanding minimum repayment amount and the credit line exceeding the limit and the handling fee exceeding the limit.