What Is Copay vs Coinsurance?
A copay is a fixed dollar amount you pay per service (e.g., $25 for a doctor visit), while coinsurance is a percentage of the allowed cost you share after the deductible (e.g., 20%). Many U.S. health plans use both: you might pay a $25 copay for a routine visit but 20% coinsurance for hospital care once the deductible is met.
Why it matters
Understanding the split helps you predict a bill. Copays are predictable; coinsurance scales with the size of the claim, so a big hospital stay costs you a percentage, not a flat fee.
Common confusion
Neither copay nor coinsurance counts toward the other automatically — but both usually count toward your out-of-pocket maximum.
Frequently Asked Questions
Which is better, copay or coinsurance?
It depends on usage. If you rarely see doctors, a plan with copays and a high deductible may suit you; if you expect major care, a lower coinsurance percentage caps your share of large bills.
Do copays count toward the deductible?
Usually not. Under most plans, copays are separate from the deductible but both count toward the out-of-pocket maximum.