If the loan term is not written, the borrower and the lender may supplement it by agreement; If a supplementary agreement cannot be reached, it can be determined in accordance with the relevant provisions of the contract or trading habits; If it is still uncertain, the borrower can return it at any time; The lender may urge the borrower to return it within a reasonable period of time. An iou refers to a bill written to the other party when borrowing personal or public cash or goods, that is, an iou. If the loan date is not written on the IOU, the IOU date can be used as the loan start date, or the bank transfer time can be used as the loan start date.

As long as the IOU includes the main contents such as the lender, the borrower, the loan amount and the loan time, it is legal and valid. Standard IOUs shall include the following contents:

(1) The legal full names of the borrower and the lender shall be clearly written;

(2) the loan amount should be clearly written, including the amount expressed in words and figures;

(3) the loan term should be clearly written, including the start and end date of the loan and a clear loan term;

(4) The specific repayment date shall be clearly written;

(5) The loan interest should be clearly written, and there should be a clear annual interest rate or monthly interest rate, and the final total loan interest to be paid (including the amount expressed in words and figures) and other agreements;

(6) The month, day, time and mode of payment for repayment of loan principal and interest shall be specified;

(seven) should have the borrower's personal signature, handprint or autograph;

(eight) when necessary, it shall be signed by the guarantor to clarify the guarantee period and responsibility.

legal ground

People's Republic of China (PRC) Civil Code

Article 490

If the parties enter into a contract in the form of a contract, the contract shall be established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it.

A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.