Deductibles, Copays, Coinsurance, and Out-of-Pocket Maximums

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Every health plan has five prices, not one. There is the monthly premium, which you pay whether you use care or not, and then there are four costs that only arise when you use care: the deductible, the copay, coinsurance, and the out-of-pocket maximum. People who compare only the premium are comparing one fifth of the price. People who understand all five can predict their year.

The four costs, in one paragraph

The deductible is the amount you pay for covered services before the plan starts paying. A copay is a fixed amount you pay for a service, such as 30 dollars for a primary care visit. Coinsurance is a percentage you pay, such as 20% of a hospital bill, after the deductible. The out-of-pocket maximum is the ceiling: once your spending on covered in-network services hits it, the plan pays 100% for the rest of the year. Premiums do not count toward the deductible or the out-of-pocket maximum, and out-of-network spending usually does not count either, or counts under a separate, higher limit.

Each cost, in turn

Deductible. If your deductible is 3,000 dollars, you generally pay the first 3,000 dollars of covered costs yourself, at the plan's negotiated rates, not the provider's list price. Some services are exempt: preventive services are covered without cost-sharing in network, and many plans charge a copay for primary care visits or prescriptions before the deductible is met. Read the summary of benefits for your plan, because the exemptions vary.

Copay. A copay is predictable: 25 dollars for a visit, 15 dollars for a generic drug, 250 dollars for an emergency room visit, whatever the plan sets. Copays are the reason a plan can feel affordable even with a high deductible: the services you use most often may never touch the deductible at all.

Coinsurance. Coinsurance is a percentage, and percentages are where large bills come from. Twenty percent of a 50,000 dollar hospital stay is 10,000 dollars, which is why the out-of-pocket maximum exists. Coinsurance usually applies after the deductible, so a hospital stay early in the year can mean paying the deductible plus coinsurance up to the ceiling, while the same stay late in the year, after the deductible is met, means coinsurance only.

Out-of-pocket maximum. For 2026, the federal maximum is 10,600 dollars for self-only coverage and 21,200 dollars for family coverage. For 2027 it is 12,000 and 24,000 dollars. Individual plans can set lower maximums, and often do on Gold and Platinum plans and on Silver plans with cost-sharing reductions. The maximum is your worst case for covered in-network care in a year, and it is the single most useful number for comparing plans when you expect a lot of care.

A worked example (illustrative)

Suppose you have a plan with a 2,000 dollar deductible, a 30 dollar primary care copay, 20% coinsurance after the deductible, and a 7,000 dollar out-of-pocket maximum. In January you have a hospital stay with an allowed amount of 20,000 dollars. You pay the 2,000 dollar deductible first, then 20% of the remaining 18,000 dollars, which is 3,600 dollars, for a total of 5,600 dollars on that stay. In March you have surgery with an allowed amount of 10,000 dollars. You have already spent 5,600 dollars toward the maximum, so you owe 20% of 10,000 dollars, 2,000 dollars, except that the maximum caps your total at 7,000 dollars, so you pay 1,400 dollars, not 2,000 dollars. For the rest of the year, covered in-network services cost you nothing except any copays that your plan counts separately, which is why the plan's summary of benefits, not this example, is the final word.

What does not count toward the maximum

Premiums never count. Spending on services your plan does not cover never counts. Out-of-network spending usually counts toward a separate out-of-network maximum, if one exists, or not at all. Balance billing, where an out-of-network provider bills you the difference between their charge and what the plan pays, is restricted by the No Surprises Act for emergency services and for certain services at in-network facilities, but it is not eliminated everywhere, and it is a separate subject from the out-of-pocket maximum. If a bill surprises you, check whether the service was in network, whether it was covered, and whether the No Surprises Act applies, before you pay it.

Family deductibles have two forms. Some family plans have an embedded deductible, where one family member's spending can meet their own individual deductible even if the family deductible is not met. Others have an aggregate deductible, where no one gets plan payments until the whole family deductible is met. For a family with one member who uses a lot of care, the difference can be thousands of dollars, and it is buried in the plan documents.

Sources: HealthCare.gov, deductible, copayment, coinsurance, and out-of-pocket maximum glossaries; Centers for Medicare & Medicaid Services, out-of-pocket limits for 2026 and 2027.

General information only. This page explains the U.S. health insurance Marketplace in plain English. It is not insurance, medical, tax, or legal advice, and it cannot tell you which plan to buy or what you will pay. Your price depends on your age, household, income, location, and the plans in your area. Always confirm the current rules, dates, and your own price on HealthCare.gov or your state marketplace before you act. Contact: hello [at] tapetoolhq.com.