1. The seller applies to the bank. If approved by the bank, the bank, the buyer and the seller sign an agreement, and the bank agrees the seller to transfer the house. The seller promises to give priority to the repayment of bank loans, and authorizes the bank to directly deduct the outstanding loan principal and interest from its account opened in the bank. The buyer promises to remit the house payment to the account opened by the seller in the bank at the time of transaction.

2. The buyer and the seller sign the house transfer contract. The buyer applied for a new loan from the bank. The loan amount can be the remaining loan balance of the seller, or it can be calculated according to the following formula: loan amount = the market price of the purchased house × the loan ratio of the second-hand house. After the approval, the bank signs a new loan contract and mortgage contract with the buyers, and issues a letter of commitment to agree to the loan.

3. The seller and the buyer go through the formalities of property right transfer. The bank and the seller go to the real estate management department to cancel the mortgage registration and apply for a new mortgage registration with the buyer. When granting loans to the buyer, the bank will transfer the loans to the account opened by the seller according to the authorization of the buyer, and then directly deduct the outstanding loan principal and interest from the account according to the authorization of the seller, and terminate the original loan contract.