Learning Center · Understanding your coverage
Deductible vs. Copay vs. Coinsurance
Three different ways you share the cost of care with your insurance — understanding each one changes how you read any plan's price tag.
Deductible: what you pay first
Your deductible is the amount you pay for covered services before your insurance starts sharing the cost (with some exceptions, like preventive care, which is often covered before the deductible). A plan with a lower deductible usually has a higher monthly premium, and vice versa — it's a trade-off, not a free upgrade.
Copay: a fixed amount per visit
A copay is a flat dollar amount you pay for a specific service — like $30 for a primary care visit — regardless of the total cost of that visit. Copays are predictable, which is exactly why they're easier to budget around than coinsurance.
Coinsurance: a percentage, not a flat fee
Coinsurance is your share of the cost expressed as a percentage — for example, your plan might cover 80% of a service after the deductible, leaving you responsible for the remaining 20%. Unlike a copay, the dollar amount you actually owe depends on how much the service costs in total.
How they work together
A typical claim flows in this order: you pay toward your deductible first, then copays and/or coinsurance apply, until you hit your plan's out-of-pocket maximum for the year. Reading a plan's "summary of benefits" with these three terms in mind is the fastest way to understand what it will actually cost you to use.
Common mistakes
- Assuming a "$0 deductible" plan has no costs at all — copays and coinsurance can still apply.
- Comparing two plans by premium alone, without checking how the deductible and coinsurance stack up.
- Forgetting that most preventive care is covered before the deductible, and skipping checkups to "save money."
Still have questions about your specific situation?
This page explains the general concept. For how it applies to you, Cesar reviews your actual numbers — free, no pressure.
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