When a company issues an iou, it shall specify the owed object, the owed reason, the owed amount, the repayment period and method, and affix the seal of the company, which shall become legally effective. An IOU is a written application written by an individual or unit to the relevant unit or individual when it owes money or things. White stripes are also common in daily life. They are written evidence that one party owes money to the other, and they are an application style of credentials. When written IOUs, IOUs, contracts and other agreed texts have legal effect, they will protect their own interests. When issuing IOUs, we should pay attention to the following matters: the subject of the creditor-debtor relationship is clearly stated, the unit of the amount is clear, the amount is written in traditional Chinese characters, and the return date is clear. If there is an agreement on interest, it shall be stated, otherwise it shall be regarded as no interest according to law, and if there is an agreement on liquidated damages, it shall be stated. If there is a guarantor, the method of guarantee shall be indicated, and the guarantor shall be indicated.

The IOUs shall be in written form, and the type, currency, amount, time limit and repayment method shall be specified in the IOUs. The name of the IOU unit and the signature of the handler, and the date of IOU is stamped with the official seal of the unit and personal seal or signature.

The nature of IOUs and IOUs is different, and the reasons for their formation are also different. Borrowing is mainly the reason for borrowing, and arrears may be caused by buying, selling, leasing, interest and other reasons.

The statute of limitations of IOUs and IOUs are different: IOUs with agreed repayment period: the statute of limitations is 3 years from the day after the repayment period expires;

IOU with no agreed repayment period: According to Article 675 of the Civil Code, the borrower shall repay the loan within the agreed period. If the term of the loan is not agreed or clearly agreed, and cannot be determined according to the provisions of Article 510 of this Law, the borrower may return it at any time; The lender may urge the borrower to return it within a reasonable period of time.

Accordingly, according to Article 188 of the Civil Law, the limitation of action for requesting protection of civil rights from the people's court is three years. Where there are other provisions in the law, those provisions shall prevail. The limitation period of action shall be counted from the date when the creditor knows or should know that the right is damaged and the debtor knows it. Where there are other provisions in the law, those provisions shall prevail. However, the people's court shall not protect the rights that have been damaged for more than 20 years. Under special circumstances, the people's court may decide to extend the time according to the application of the obligee. White stripes: White stripes with agreed repayment period: The statute of limitations is 3 years from the day after the repayment period expires. It should be noted that this kind of cause of action should be the basic legal relationship; IOUs with no agreed repayment period: the Supreme People's Court pointed out in the Reply on How to Calculate the Limitation of Action for IOUs without repayment date when the debtor fails to perform the debt after the expiration of the agreed period [Fa Fu (1994) No.35]: "The two parties originally agreed to pay the supplier immediately after delivery, but the buyer had no money to pay after receiving the goods, and the arrears without repayment date were written with the consent of the supplier." Interruption of the limitation of action. If the supplier does not claim the right after the interruption of the limitation of action, the limitation of action shall be recalculated from the day after the supplier receives the written arrears from the buyer. Therefore, the limitation of action for such arrears should be calculated from the date when the arrears are issued. Conditions for the interruption of the limitation of action for IOUs: The conditions for the interruption of the limitation of action for IOUs include: the creditor asks the debtor to pay off the debt, the creditor brings a lawsuit against the debtor in court, and the debtor agrees to pay off the debt.

Legal basis:

Article 195 of the Civil Code of People's Republic of China (PRC)

In any of the following circumstances, the limitation of action shall be interrupted, and the limitation period shall be recalculated from the date of interruption and the end of relevant procedures:

(1) The creditor makes a performance request to the debtor;

(2) The debtor agrees to perform its obligations;

(3) The obligee brings a lawsuit or applies for arbitration;

(four) other circumstances with the same effect as bringing a lawsuit or applying for arbitration.