Detailed description:
1. Definition of interest calculation base: In private lending, interest calculation base refers to the amount base referred to when calculating overdue interest.
2. Agreement on overdue interest in the loan contract: The calculation method and calculation base of overdue interest are usually clearly stipulated in the loan contract. Generally speaking, the calculation base of overdue interest refers to the amount of overdue principal.
3. Calculation method of overdue interest: According to the loan contract, the calculation method of overdue interest can be calculated at the daily interest rate or the monthly interest rate, and the specific amount is calculated at the overdue principal.
4. Reasons for excluding loan interest: overdue interest is a kind of compensation for the borrower's failure to repay the loan on time, which mainly compensates for the loss of overdue principal, but does not include loan interest. Loan interest refers to the interest paid by the borrower to the borrower according to the contract because the loan interest has been paid on time within the normal repayment period and no losses have been caused.
To sum up, the calculation base of overdue interest of private lending generally does not include loan interest. Overdue interest is a form of compensation for overdue principal, which does not involve the loan interest paid on time during the loan period. According to different loan contracts, the specific calculation method and calculation base of overdue interest may be different. Therefore, in private lending, the borrower has the responsibility to clearly agree with the lender on the calculation method and basis of overdue interest.