The consequence of non payment of fine in criminal cases is that it will be enforced and will affect probation. According to the law, if a criminal sentenced to a fine fails to pay within the time limit, the people's court shall compel him to do so. Unless it is really difficult to pay, it can be reduced or exempted as appropriate.
 [Legal Basis]
 According to Article 53 of the Criminal Law, the fine shall be paid once or in installments within the time limit specified in the judgment. If it fails to pay at the expiration of the time limit, it shall be compulsorily paid. If the fine cannot be paid in full, the people's court shall recover it at any time when it finds that the person subjected to execution has property that can be enforced. If it is really difficult to pay due to irresistible disasters or other reasons, the people's court may, after ruling, postpone the payment, reduce or exempt it as appropriate.