Learn about coinsurance, including its definition, types, calculation, benefits, and drawbacks. Compare with deductible and discover cost management tips.

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Eric's career includes extensive work in both public and corporate accounting with ...

Coinsurance is when you and your insurance plan both pay a percentage of a medical bill. After meeting your deductible, you pay a percentage called coinsurance for additional medical services.

Medicare has different out-of-pocket costs, including premiums, deductibles, copayments, and coinsurance. Copayments are fixed dollar amounts, and coinsurance is a percentage of the cost. You may ...