You can't change banks during the mortgage period, but you can sublet the house to others:

1. Find a new bank, and find a receiving bank that can give more favorable interest rate to the mortgage.

2. Bring all the application materials, including the original loan contract, house purchase contract, copy of real estate license (no copy), original ID card, income certificate and repayment record (usually a copy of the passbook for monthly payment deducted by the bank), and fill out the application form for "remortgage" at the receiving bank outlet.

3. Credit inquiry. After the application, if you want to "re-lend", you must authorize the receiving bank to inquire about the "personal credit file".

4. Records should be good. If there is no malicious loan default record in the applicant's personal credit record, the accepting bank will generally make a decision to accept the "re-mortgage" within 7 working days, and will notify the applicant by phone at the same time; If there is a record of loan default or credit card off the charts in the personal credit record, the accepting bank may refuse to accept the "remortgage".

5. Repayment in advance, after obtaining the consent of the receiving bank, apply to the original loan issuing bank for full repayment in advance. Because many banks require to apply for "full repayment in advance" one week in advance, this process takes about half a month.

6. Sign a new contract, make full repayment at the original loan issuing bank in advance and get back the mortgaged real estate license, and then sign a new personal housing mortgage loan contract at the receiving bank outlet.

7. Re-mortgage. With the real estate license, the full repayment certificate (issued by the original loan bank) and the personal mortgage loan contract signed with the receiving bank, go to the mortgage registration department where each house is located (generally at the Housing Fair) to go through the mortgage formalities first, and then go through the new mortgage procedures.

8. Submit the formalities to the bank, and hand over the real estate license, mortgage cancellation procedures and mortgage procedures to the receiving bank.

Second, mortgage loan.

It means that the borrower sells the house as collateral, and the buyer of the house continues to repay the unexpired loan of the seller with the consent of the loan bank. Simply put, it is to buy and sell the house that is still mortgaged again, and the buyer of the house will continue to repay the mortgage of the seller. There are two situations in the second-hand housing market: point-to-point mortgage and inter-bank mortgage.