‘Co-pay’ is a term that is used in insurance when a plan has a feature where both the insurance company and the person who has bought the insurance policy share the hospitalization expenses at the time of a claim. For example, if your Corporate Plan has a 10% Co-pay clause, then at the time of a claim, 10% of the total admissible claim amount will be paid by you (the person who is insured) and 90% of the amount will be paid by Acko.