Health Insurance Out-of-Pocket Maximum Explained

The ceiling on your worst year

The out-of-pocket maximum is the most a plan can require you to pay for covered, in-network care in a plan year. Once your spending on deductibles, coinsurance, and copays reaches it, the plan pays 100% of covered in-network services for the rest of the year. It is the worst-case number on the plan, and it is the number that decides whether a bad year is painful or ruinous. For 2026, the Affordable Care Act ceiling on that maximum is $10,600 for self-only coverage and $21,200 for other coverage. For 2027, it rises to $12,000 and $24,000. Those are legal maximums, not typical values: a plan may set its maximum lower, and most do.

High-deductible plans that qualify for Health Savings Accounts play by a tighter set of rules. For 2026, the IRS caps the out-of-pocket maximum on an HSA-qualified HDHP at $8,500 for self-only coverage and $17,000 for family coverage, under Revenue Procedure 2025-19. A plan with a maximum above the HDHP cap but below the ACA cap is still legal insurance; it simply does not qualify as an HDHP, and its members cannot contribute to an HSA. The two caps answer different questions, and confusing them is the most common out-of-pocket error in benefits guides: the ACA cap is the legal ceiling for any plan, and the HDHP cap is the eligibility line for the HSA.

What counts, and what does not

What counts toward the maximum: your deductible, your coinsurance, and your copays, for covered services from in-network providers. What does not count: your monthly premiums, which are the largest single health cost for most households and sit entirely outside the maximum. Also outside: charges for services the plan does not cover, out-of-network charges above what the plan allows, and balance billing in the situations where it still applies. A household that adds up premiums plus the maximum gets the true worst case for the year: premiums plus out-of-pocket maximum, not the maximum alone.

The calculator defaults show the distinction. Plan A charges $250 a month and caps out-of-pocket spending at $8,000, so its worst case is $3,000 in premiums plus $8,000, or $11,000 for the year. Plan B charges $400 a month and caps out-of-pocket spending at $4,000, so its worst case is $4,800 plus $4,000, or $8,800. Plan B's worst case is $2,200 better even though its premiums are $1,800 higher, because its out-of-pocket cap is $4,000 lower. Shoppers who compare maximums without adding premiums, or premiums without adding maximums, are comparing half a worst case.

Family maximums: embedded and aggregate

Family plans handle the maximum in one of two ways, and the plan documents, not the marketing page, say which. In an aggregate family maximum, no one person's spending counts alone: the family must collectively reach the family maximum before the plan pays 100% for anyone. In an embedded design, each person also has an individual maximum inside the family maximum, so one person's catastrophic year is capped at the individual limit even if the family total has not reached the family limit. For a family with one member facing a major illness, the difference is thousands of dollars. The federal rules require an embedded individual cap within family coverage for non-grandfathered plans, but the exact structure still varies, and the summary of benefits should state it plainly. If it does not, call the plan and ask before enrolling.

The same embedded-versus-aggregate question applies to the family deductible, and the same advice holds: read the summary of benefits, not the brochure. A family deductible of $5,095, the KFF average for high-deductible family plans, can mean $5,095 before anyone's costs are shared, or it can mean an embedded individual deductible that caps one person's exposure much lower. The calculator models a single deductible and a single maximum per plan, which matches self-only coverage exactly and approximates family coverage; for a family plan, enter the family figures and confirm the embedded structure separately.

The 2027 increase, in context

The 2027 ceilings of $12,000 and $24,000 are $1,400 and $2,800 higher than the 2026 ceilings, a jump of about 13%. That is a large single-year move in the worst case, and it arrives in the same year as a median proposed premium increase of 15% on the marketplace and the loss of the enhanced tax credits. The worst case for a marketplace household in 2027 is worse on both sides of the ledger at once: higher premiums that do not count toward the maximum, and a higher maximum once care is needed. Households shopping for 2027 coverage should check the maximum on the new plan rather than assuming last year's number, because the ceiling moved and individual plans may have moved with it.

There is a constructive way to read the maximum. It converts an open-ended risk into a bounded one. A household that knows its worst case is $8,800 can hold an emergency fund for $8,800 and stop worrying about the unbounded alternative. A household that does not know its maximum is carrying an unpriced risk, and unpriced risks are the ones that become debt. The maximum is not a marketing number. It is the size of the emergency fund the plan requires, and it belongs in the household budget as a line item, not a footnote.

How to use the maximum in your decision

First, find the maximum on each plan you are considering, and add twelve months of your premium share to it. That sum is the worst case. Second, compare that sum to your emergency fund. If the worst case exceeds the fund, the plan is not affordable in the year you need it most, whatever its premium suggests. Third, check whether the maximum is embedded per person or aggregate for the family, and confirm it in the summary of benefits. Fourth, remember that premiums do not count toward the maximum, so a year with no care still costs the full premium, and a year with catastrophic care costs premiums plus the maximum, never more for covered in-network care. The maximum is the plan's promise that the bill stops. Hold the plan to it, and hold your budget to the sum.

Out-of-pocket questions

What is the out-of-pocket maximum for 2026?

The ACA ceiling is $10,600 for self-only coverage and $21,200 for other coverage. For HSA-qualified HDHPs, the IRS cap is tighter: $8,500 self-only and $17,000 family. Most plans set their maximum below the ceiling.

What is the out-of-pocket maximum for 2027?

The ACA ceiling rises to $12,000 for one person and $24,000 for a family, up $1,400 and $2,800 from 2026. Check the new plan's maximum rather than assuming last year's number carried over.

Do premiums count toward the out-of-pocket maximum?

No. Premiums never count. Neither do out-of-network charges above the allowed amount or services the plan does not cover. The true worst case is twelve months of premiums plus the out-of-pocket maximum.

Keep reading

• Health Insurance Deductible vs PremiumHow the deductible and maximum interact across bill levels.
• HDHP vs PPO CostThe HDHP cap versus the ACA cap, and why both exist.
• How to Choose a Health PlanThe maximum check inside the enrollment checklist.
• Health Insurance Cost CalculatorPrice both plans by total yearly cost, with the break-even bill amount.