1. Is the written or printed IOU valid?

Printing IOUs is legally binding. Usually, IOUs should be signed and signed. If the parties conclude a contract in the form of a contract, they shall sign or seal it. If the parties press their fingerprints on the contract, the people's court shall determine that it has the same legal effect as the signature or seal.

Signature, seal and thumbprint have the same legal effect, and the loan does not need to be clearly thumbprinted. As long as the reason and amount of arrears are clearly written, the debtor's signature and handwritten IOUs have legal effect. If the repayment period is clearly stipulated in the IOU, the IOU shall be valid for 3 years from the date of repayment period. If there is no clear agreement on the repayment period, it will be valid for 3 years from the date of the first claim.

Second, what should be included in writing an IOU?

(1) Name: Be careful to write "IOU" instead of "IOU" or "receipt";

(2) Parties: The legal full names of the borrower and the lender shall be clearly written, and the ID numbers shall be indicated. Never write "third brother" or "fourth sister";

(3) Amount: The loan amount should be clearly written, including the amount expressed in words and figures, and both parties should be consistent. In case of any inconsistency, amount in words shall prevail according to law;

(4) Time: generally, the corresponding term related to the loan should be clearly written, including the time of the loan and a clear repayment period; It should be noted here that whether the prescription is clear is very important for the calculation of the prescription of action;

(5) Interest: If both parties agree on loan interest, it shall be clearly stated in the receipt, and the agreed interest rate shall not violate the law.

(6) The signature shall be signed by the borrower himself and stamped with his handprint.

(7) Guarantee: In order to maintain the security of the loan, the other party may be considered to provide corresponding guarantee, such as providing mortgage or guarantor. Even if no guarantee is provided, we can consider having two unrelated third parties sign the IOUs as witnesses.

(8) Language and writing: The loan must be clearly written, and in order to avoid ambiguity, we must consider whether the words and sentences are ambiguous.

Handwritten IOUs are valid only if they are signed by fingerprints. When writing IOUs, we should pay attention to writing norms, write the legal full names of both borrowers and borrowers, and indicate the ID numbers. To write down the loan amount clearly, it is necessary to write in uppercase and lowercase letters together, and stipulate the loan interest, repayment method and specific time.