The mechanism by which solvent insurers ensure that some of the policyholder and third party claims against insurance companies that fail are paid. Such funds are required in all 50 states, the District of Columbia and Puerto Rico, but the type and amount of claim covered by the fund varies from state to state. Some states pay policyholders' unearned premiums â€“ the portion of the premium for which no coverage was provided because the company was insolvent. Some have deductibles. Most states have no limits on workers compensation payments. Guaranty funds are supported by assessments on insurers doing business in the state.