We had a client who kept very poor employment records for their business. They did, however, maintain their worker's compensation insurance.  One of their employees sustained a serious injury on the job, and the employer was very hesitant to file a claim because they were concerned that it would be difficult to prove that their worker was actually an employee of the company.  We did advise that they file, and quickly. In such cases, it's advisable to start the claim as soon as possible. More information, if needed, can be provided as the claim progresses.  Failing to do so exposes the employer to legal liability.  In this case, the claim was approved, and there were no further issues.