The penalty for the late filing of a corporation plumbing surety bond can vary depending on the state and jurisdiction where the bond is required. In some cases, the penalty may be a monetary fine imposed by the state regulatory authority overseeing plumbing licensing. The amount of the penalty can range from a fixed fee to a percentage of the bond amount. Additionally, the late filing of a surety bond may result in the suspension or revocation of the plumbing contractor's license or the denial of any pending applications for licenses or permits. It is important to check the specific regulations and requirements of the state or jurisdiction where the bond is required to determine the exact penalty for late filing.