It is not necessary to sign and fingerprint the receipt. The receipt is usually issued by the recipient to the payer. After the receipt is issued, it must have his or her signature. It is not a mandatory requirement of the law whether or not the receipt should be fingerprinted. As long as the content of the receipt is the true intention of the issuer and does not violate the mandatory provisions of the law, it is a valid act. Under normal circumstances, in order to ensure the authenticity of the receipt, it is better to add a fingerprint when signing in reality. At the same time, if there are witnesses, it is best to have the witnesses sign and indicate the witness's identity.