Legal analysis: 1, the daily interest rate is generally expressed as one ten thousandth of the principal. The conversion formula of annual interest rate, monthly interest rate and daily interest rate is: annual interest rate = monthly interest rate ×l2- daily interest rate ×360 monthly interest rate = annual interest rate × 360 = monthly interest rate ÷302, interest date and interest period. According to regulations, bank deposit accounts and short-term loans of enterprises generally calculate interest quarterly. Short-term loans also bear interest on a monthly basis, and the interest-bearing date is the 20th of each month. Long-term loans usually bear interest quarterly, and the interest date is the 20th of the last month of each quarter.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 667 A loan contract is a contract in which the borrower borrows money from the lender, repays the loan at maturity and pays interest.

Article 671 Where the lender fails to provide the loan on the agreed date and amount, thus causing losses to the borrower, it shall compensate for the losses.

If the borrower fails to collect the loan according to the agreed date and amount, it shall pay interest according to the agreed date and amount.

Article 675 The borrower shall repay the loan within the agreed time limit. If the term of the loan is not agreed or clearly agreed, and cannot be determined according to the provisions of Article 510 of this Law, the borrower may return it at any time; The lender may urge the borrower to return it within a reasonable period of time.