I. Calculation of loan interest:
(1) The interest rate conversion formula for RMB business is (note: common for deposits and loans):
1, daily interest rate (0/000)= annual interest rate (%)÷360= monthly interest rate (‰)÷30.
2. Monthly interest rate (‰) = annual interest rate (%)÷ 12.
(two), the bank can use the product interest method and the transaction interest method to calculate interest.
1. Accumulate the account balance daily according to the actual number of days, and multiply the accumulated product by the daily interest rate to calculate the interest. The interest-bearing formula is:
Interest = cumulative interest-bearing product × daily interest rate, where cumulative interest-bearing product = total daily balance.
2. Transaction-by-transaction interest calculation method calculates interest one by one according to the preset interest calculation formula: interest = principal × interest rate × loan term, with three details:
(1) If the interest-bearing period is a whole year (month), the interest-bearing formula is: interest = principal × year (month )× year (month) interest rate.
(2) If the interest period has a whole year (month) and odd days, the interest formula is: interest = principal × number of years (months) × annual (month) interest rate+principal × odd days × daily interest rate.
(3) At the same time, banks can choose to convert the interest period into actual days to calculate interest, that is, 365 days per year (366 days in leap years), and each month is the actual number of days in the Gregorian calendar of the current month. The interest-bearing formula is: interest = principal × actual days × daily interest rate.
These three formulas are essentially the same, but because the interest rate conversion is only 360 days a year. However, when calculating the actual daily interest rate, it will be calculated according to 365 days a year, and the result will be slightly biased. Which formula is used specifically, the central bank gives financial institutions the right to choose independently. Therefore, the parties and financial institutions can agree on this in the contract.
Second, the repayment method of the loan:
(1) Equal principal and interest repayment method: equal repayment every month, the sum of loan principal and interest. Most banks have adopted this method for housing provident fund loans and commercial personal housing loans. So the monthly repayment amount is the same;
(2) average capital repayment method: that is, the borrower distributes the loan amount to each period (month) evenly throughout the repayment period and pays off the loan interest from the previous trading day to the repayment date. In this way, the monthly repayment amount decreases month by month;
(3) Paying interest and principal on a monthly basis: that is, the borrower repays the loan principal in one lump sum on the loan maturity date (applicable to loans with a term of less than one year (including one year)), and the loan bears interest on a daily basis and the interest is repaid on a monthly basis;
(4) Repay part of the loan in advance: that is, the borrower can repay part of the loan amount in advance when applying to the bank, which is generally an integer multiple of 65,438+0,000 or 65,438+0,000. After repayment, the lending bank will issue a new repayment plan, and the repayment amount and repayment period will change, but the repayment method will remain unchanged, and the new repayment period shall not exceed the original loan period.
(5) prepayment of all loans: that is, the borrower can repay all the loan amount in advance when applying to the bank, and the loan bank will terminate the borrower's loan at this time after repayment and handle the corresponding cancellation procedures.
(6) Pay back as you borrow: interest is calculated on a daily basis after borrowing, and interest is calculated on a daily basis. You can pay the money in one lump sum at any time without any penalty.