1. How to write a formal IOU? A debt generally consists of three parts: title, text and signature. 1. The title of IOU is generally composed of language names, that is, the word "IOU" is written in large font at the top and middle of the text. Some still write the words "temporary debt" or "current debt" as the title in this position, but the text of this title is written at the top of the next line. 2. Who, what unit, what and how much the text should be written to, and indicate the repayment date. 3. Payment must have the name of the debtor's unit and the signature of the agent. If the loan is granted by an individual, the name of the debtor shall be signed. Meanwhile, sign the date on the receipt. Units should build official seals and individuals should build private seals. How to write formal IOUs? Second, Mode _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ This is the foundation. Debtor: _ _ _ _ _ _ ID number: _ _ _ _ _ Home address: _ _ _ _ _ _ Tel: _ _ _ _ _ _ _ Guarantor: _ _ _ _ _ _ _ ID number: _ _ _ _ Home address: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. 1. If there is an agreed time limit for the performance of the transaction payment, such as "cash on delivery" or the two parties agree to pay off the payment within a certain period of time, when the performance period expires, the debtor fails to perform its obligations and issues an iou with no repayment date. This situation belongs to the interruption of the limitation of action, and the limitation of action is recalculated from the time of interruption. 2. If the performance period of the transaction money is not agreed, the payment is not paid at the time of the transaction, and a debt settlement clause with no repayment date is issued to the creditor, the limitation of action shall be calculated from the time when the creditor claims the right. 3. If both parties have not signed a written contract, and there is no evidence to prove that both parties have agreed on the time limit for performance of the contract, if the time limit for performance is unclear according to the relevant provisions of the Civil Code, the debtor may perform it at any time, and the creditor may request it at any time, but the other party shall be given necessary preparation time. "4. If the debtor acknowledges the debt after the expiration of the debt performance period, his willingness to repay shall be deemed as the establishment of a new debt.