Legal Analysis: The basis for the agreement of personal loan interest is the Provisions of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trial of Private Lending Cases, that is, the interest rate of private lending can be appropriately higher than that of banks. The local people's courts can specifically grasp the actual situation in the region, but the maximum interest rate of similar loans shall not exceed four times (including the local interest rate), and the excess interest shall not be protected.

Legal basis: Provisions of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trial of Private Lending Cases.

Article 24 If the borrower and the lender have not agreed on interest, and the lender claims to pay interest, the people's court will not support it. If the interest agreement between natural persons is unclear and the lender claims to pay interest, the people's court will not support it. Except for the loan between natural persons, if the agreement on the loan interest between the borrower and the lender is unclear, and the lender claims interest, the people's court shall determine the interest according to the contents of the private loan contract, the local or the parties' trading methods, trading habits, market quotation and other factors.

Article 25 If the lender requests the borrower to pay interest at the interest rate agreed in the contract, the people's court shall support it, except that the interest rate agreed by both parties exceeds four times the market quotation of one-year loan at the time of the establishment of the contract.

The "one-year loan market quotation" mentioned in the preceding paragraph refers to the one-year loan market quotation issued monthly by the National Interbank Funding Center authorized by the People's Bank of China from August 20th, 20th, 20th19th.