Mortgage can be repaid in advance once a year, and mortgage prepayment can only be applied once a year, and there is no specific limit on the amount of mortgage prepayment, but banks usually require prepayment 1 10,000 yuan or more. Although the prepayment of mortgage will not affect the credit information, it is necessary to pay liquidated damages. The more times of prepayment, the more liquidated damages need to be paid.