The concept of assuming a financial risk oneself, instead of paying an insurance company to take it on. Every policyholder is a self-insurer in terms of paying a deductible and co-payments. Large firms often self-insure frequent, small losses such as damage to their fleet of vehicles or minor workplace injuries. However, to protect injured employees state laws set out requirements for the assumption of workers compensation  programs. Self-insurance also refers to employers who assume all or part of the responsibility for paying the health insurance claims of their employees. Firms that self insure for health claims are exempt from state insurance laws mandating the illnesses that group health insurers must cover.