1. The longest period for discounting bills shall not exceed 6 months from the discounting date to the maturity date of bills. The calculation method of the discounted amount paid is to deduct the interest from the discount date to the day before the maturity of the bill. If the acceptor is in a different place, the discount period should be increased by 3 days' transfer date.

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Two. Calculation formula The calculation formula of discounted interest and actual amount of bills receivable is:

1, discount interest = maturity value of bills × discount rate× discount period.

2. Earned amount = maturity value of bills-discounted interest.

3. The application condition of discount business is 1. The bills are authentic and the records conform to the provisions of the payment and settlement methods;

2. There is a real commodity trading relationship between the ticket-holding enterprise and the original enterprise;

3. To apply for the discount of commercial acceptance bills, the issuing enterprise shall meet the credit conditions for the discount of commercial bills of our bank;

4. Ticket-holding enterprises sign discount repurchase business with banks (regular or irregular agreements);

5. The ticket-holding enterprise opens a deposit account in the bank.

The above article answered the question about "the longest period of bill discount shall not exceed". According to the relevant laws and regulations, the ticket holder can discount the bill in a bank or discount company in exchange for funds. The interest of discount business is deducted from the bill denomination when the business occurs, that is, the interest is deducted in advance.