A
copayment or
copay is a fixed payment for a covered service, paid when an individual receives service. In the United States, copayment is a payment defined in an
insurance policy and paid by an insured person each time a medical service is accessed. It is technically a form of
coinsurance, but is defined differently in health insurance where a coinsurance is a percentage payment after the deductible up to a certain limit. It must be paid before any policy benefit is payable by an insurance company. Copayments do not usually contribute towards any policy out-of-pocket maxima whereas coinsurance payments do.