1. What is a valid IOU? As long as the borrower is a person with full capacity for civil conduct and the written meaning of the IOU is clear and true, consistent with common sense, and does not violate any laws or regulations, it is a valid IOU.
2. How to write a valid IOU
1. Indicate the title and write the word "IOU" in the center;
2. Text content: First, it must include The borrower and the lender and their respective ID numbers; Secondly, indicate the loan amount and currency in upper and lower case letters, and whether there is any interest; Next, you can indicate the purpose of the loan and what the loan is for; and then agree on the repayment period. If it is overdue, Whether there is liquidated damages; these are the key elements of the content of the IOU. Pay attention to writing it clearly and without typos. It can be summarized in one sentence, or it can be written separately by branch. For example, Zhang San (ID number ***) borrowed RMB 5,000 (in capital letters five thousand yuan) from Li Si (ID number ***) to buy a camera, with no interest on the loan, and the date is March 2022 The loan must be repaid in full on the first day. If it is overdue, the borrower shall bear a penalty of 500 yuan.
3. When signing and sealing the payment, write the borrower on the first line in the lower right corner of the text, the lender on the second line, each person’s signature and fingerprint, corresponding to the signature position, and the loan amount on the third line. Date and specific year, month and day. The above is the relevant content about how to write an IOU. There is no unified template, as long as the content elements are complete and the meaning is clearly expressed.