Do I have to write my ID number when I owe someone money?

You don't have to write your ID number if you owe someone money or write an iou.

IOU is a kind of evidence application written by an individual or unit to the relevant unit or individual when it owes money or things, and it is also a common form of evidence application in daily life to prove that one party owes money to the other. Write the name of the creditor when writing the IOU, which should be consistent with the name on the ID card. You can write your ID number if you have the conditions, but it is not mandatory. The signature of the IOU requires the debtor's signature and seal, which is a way to identify the debtor and does not require an ID number. The validity of IOUs refers to the statute of limitations of IOUs, and the statute of limitations of IOUs does not affect the validity of IOUs. As long as it is a legally signed, authentic and valid IOU, no matter how long it takes, the IOU itself is valid. Time is only a matter of whether the guarantee exceeds the limitation of action and whether it will be protected by law. According to the law, the statutory limitation of action for IOUs is three years. The limitation period of action for arrears with the date of repayment of arrears shall be counted from the day after the date of repayment of arrears. If there is no agreed return time, the longest limitation period is 20 years.

Measures to extend the limitation of action for creditor's rights and debts are as follows:

1. Ask the debtor to write a repayment plan. Negotiate with the debtor to make repayment plan or agreement. In this way, the limitation of action can be extended from the expiration of the repayment plan, and it will be extended soon;

2. Reconciliation with the debtor. To facilitate litigation, the limitation of action can be extended, counting from the date of settlement;

3. Draft the minutes of the meeting to negotiate with the debtor to settle the debt. For units that temporarily fail to pay their debts, adopting this method will not only hurt harmony and take the initiative to pay their debts, but also cause recalculation of the statute of limitations;

4. Let the debtor find a guarantor. Guarantee repayment within a certain period of time; If it fails to repay within the time limit, it shall be repaid by the guarantor, and the limitation of action shall be recalculated from the date when the repayment period expires;

5. Find a third party to prove that you have asked the debtor to claim rights; The limitation of action is recalculated from the date of claiming the right;

6. Keep the evidence. Such as tickets, accommodation invoice, letters and telegrams. Prove that they have always advocated rights;

7. Ask the debtor to pay the toll for each debt collection as much as possible. The paid tolls are deducted from the arrears, which can also extend the limitation of action of creditors;

8. file a lawsuit. When a lawsuit is brought to a court with jurisdiction, the original limitation of action is interrupted;

9. Get the debtor to agree to perform. The debtor's acknowledgement of creditor's rights, request for postponement of performance, provision of guarantee and payment of interest are all regarded as agreement to perform obligations. Require the debtor to make a written statement, sign an agreement to pay off debts or make a memorandum. If the debtor is unwilling to produce written evidence, it may invite an unrelated third party or relevant unit to witness it, and keep the telephone records, audio tapes, letters, telegrams and telex that the debtor agrees to perform;

10, claiming rights through non-litigation means. If the obligee makes a request to the people's mediation committee or the relevant unit, the limitation of action shall be interrupted from the time when the request is made. If mediation fails, the limitation of action shall be recalculated; If an agreement is reached through mediation, and the debtor fails to perform his obligations within the agreed time limit, the limitation period of action shall be recalculated from the date of expiration of the performance period. In addition, if the debtor claims rights to the arbitration organ or the relevant competent authority, the limitation of action may also be interrupted.

To sum up, IOUs generally refer to the documents that individuals and enterprises write to each other because of debts and what they owe. Legal IOUs: First, write IOUs in the middle of IOUs; Secondly, the name and ID number of the debtor and the name and ID number of the lender should be written; Write down the amount owed. Numbers must be written in uppercase Chinese characters to prevent tampering; Write down the date of return, and if it cannot be repaid, write down the result; Write down this evidence; Finally, when both parties sign, they should press their fingerprints, and at the same time, they need to have a certificate from a notary office, and write clearly the date of establishment.

Legal basis:

Article 470 of the Civil Code of People's Republic of China (PRC)

The contents of a contract shall be agreed upon by the parties, and generally include the following clauses:

(1) The name and domicile of the party concerned;

(2) Subject matter;

(3) quantity;

(4) quality;

(5) Price or remuneration;

(6) Time limit, place and method of performance;

(7) Liability for breach of contract;

(8) Methods for resolving disputes.

The parties may conclude a contract by referring to the model texts of various contracts.