1. interest rate: generally, the interest rate of foreign exchange is quoted at libor plus "point" in the same period, and a "point" is one ten thousandth. For example, the bank reported libor plus 300 points. For example, in July of 18, LIBOR was 0.3556%, and the effective interest rate was 0.3556%+300/10000 = 3.3556%.

2. Term: If the issuing bank has accepted, the interest-bearing period is the actual number of days from the lending date to the acceptance due date, counting the head and not counting the tail, and then according to the location of the accepting bank, an overcharge period of 3-5 days (the time for fund settlement in transit) will be added.

Interest formula: financing amount x interest rate x interest-bearing days /360.

For example, the document amount is USD 65,438+000,000, the financing date is July 65,438+08, the quotation is libor+300bps, the acceptance due date is 65,438+00-65,438+00, the overcharge period is 3 days and the financing days are 65,438+.

Withholding interest:100000x3.3556% x87/360 = 810.94.

Most banks will liquidate the interest withheld during the actual settlement and financing, and refund more and make up less.

Some currencies have 365 days of interest in a year, so divide by 365.