Your out-of-pocket maximum is the most you can be required to pay for covered, in-network care in a single plan year. For 2026, federal law caps that amount at $10,600 for self-only coverage and $21,200 for coverage that includes more than one person.1HealthCare.gov. Out-of-Pocket Maximum/Limit Once your deductible, copays, and coinsurance add up to that number, your plan pays 100% of further covered in-network services for the rest of the year. Many plans set their own limits lower than the federal ceiling, so check your plan documents for the figure that actually applies to you.
What Counts Toward the Limit
Three kinds of payments accumulate: your annual deductible, copayments, and coinsurance. The deductible is what you pay before the plan shares costs at all. A $2,000 deductible means your first $2,000 of eligible charges go straight onto the accumulator.1HealthCare.gov. Out-of-Pocket Maximum/Limit
After the deductible, most plans split the bill with you. Copayments are flat fees for specific services, like $30 for a primary care visit. Coinsurance is a percentage share: on a $10,000 surgery with 20% coinsurance, you owe $2,000.2HealthCare.gov. Coinsurance – Glossary Every one of those payments gets credited toward your yearly cap, tracked automatically by your insurer’s claims system.
What Does Not Count
Several categories of spending stay outside the cap, no matter how large they get.
- Monthly premiums. Even if you hit your maximum in February, premiums are still due every month.1HealthCare.gov. Out-of-Pocket Maximum/Limit
- Out-of-network care in a network plan. Many plans set a separate, higher out-of-network maximum; some have no out-of-network cap at all.3eCFR. 45 CFR 156.130 – Cost-Sharing Requirements
- Balance billing. When an out-of-network provider charges more than your insurer’s allowed amount, the difference is billed to you directly and does not count.4HealthCare.gov. Balance Billing
- Services your plan excludes, like elective cosmetic procedures.
- Drugs not on your plan’s formulary.
- Drug manufacturer copay cards. Plans are not required to credit copay assistance from pharmaceutical manufacturers toward your limit, even though the help reduces what you pay at the counter. People often discover this mid-year, when a formulary change or lost assistance exposes a lower accumulator than expected.3eCFR. 45 CFR 156.130 – Cost-Sharing Requirements
The practical consequence: your actual healthcare spending in a given year can exceed the stated maximum, sometimes substantially. The cap only governs covered, in-network cost-sharing.
How Family Plans Work
Family coverage has two layers. There is the family out-of-pocket maximum, and inside it, an embedded individual limit for each person on the plan. Since 2016, federal rules have required that no single person on a family plan can be forced to spend more than the self-only maximum ($10,600 in 2026) before the plan covers 100% of that person’s remaining care.5CMS. Premium Adjustment Percentage, Maximum Annual Limitation on Cost Sharing
Picture a family plan with the $21,200 family cap and the required $10,600 embedded individual cap. One member has a major hospitalization and runs up $10,600 in cost-sharing. That person’s obligation drops to zero for the rest of the year, even though the family total is still well short of $21,200. The other family members keep paying their shares until each hits the individual cap, or the family combined reaches $21,200, whichever comes first. Once the family total lands at $21,200, everyone on the plan is fully covered for the remainder of the year.
Lower Caps You May Actually Face
The $10,600 and $21,200 figures are the general ACA ceiling. Two situations push the ceiling lower.
HSA-Qualified High Deductible Health Plans
If you have a high deductible health plan paired with a health savings account, the IRS sets stricter limits. For 2026, an HDHP cannot have out-of-pocket expenses exceeding $8,500 for self-only coverage or $17,000 for family coverage.6Internal Revenue Service. Rev. Proc. 2025-19 A plan that exceeds those thresholds would disqualify the enrollee from making or receiving tax-advantaged HSA contributions. If your employer offers both a standard plan and an HDHP, comparing the out-of-pocket maximums side by side is one of the clearest ways to see your real worst-case exposure.
Cost-Sharing Reduction Silver Plans
If you buy coverage through the federal marketplace or a state exchange and your household income is below 250% of the federal poverty level, you may qualify for a cost-sharing reduction silver plan with substantially lower caps. For 2026:
- Income up to 200% of the federal poverty level: individual out-of-pocket maximum of $3,500.
- Income between 201% and 250% of the federal poverty level: individual out-of-pocket maximum of $8,450.
CSR benefits only attach to silver-tier marketplace plans. Qualifying for a CSR and then picking a bronze or gold plan gets you no reduction, which is one of the most consequential and most missed decisions during open enrollment.
Surprise Bills Now Count Toward Your In-Network Cap
Before 2022, an out-of-network emergency visit or a bill from a specialist you never chose could pile up charges that your plan refused to credit toward your in-network out-of-pocket maximum. The No Surprises Act closed that gap.
Your cost-sharing for out-of-network emergency services cannot exceed what you would have paid in-network, and whatever you do pay must count toward your in-network deductible and in-network out-of-pocket maximum.7Office of the Law Revision Counsel. 42 USC 300gg-111 – Preventing Surprise Medical Bills The same rule applies to out-of-network air ambulance services.8U.S. Department of Health and Human Services. Air Ambulance Use and Surprise Billing
The protection extends to non-emergency care at an in-network facility delivered by an out-of-network provider you did not choose, such as an anesthesiologist or radiologist. Cost-sharing for those services must flow to your in-network accumulators. The same is true when a plan’s provider directory contained inaccurate information that steered you to an out-of-network clinician.9CMS. No Surprises Act Overview of Key Consumer Protections
Preventive Care Sits Outside the Math
Most plans must cover a specified list of preventive services at zero cost when delivered by an in-network provider, even before you meet your deductible.10HealthCare.gov. Preventive Health Services Immunizations, cancer screenings, blood pressure checks, and other qualifying visits carry no copay or coinsurance. Because there is nothing to charge, these services neither add to your out-of-pocket total nor are limited by it. If routine prevention is your only care in a year, your accumulator may never move. The moment care crosses into diagnostic or treatment territory, normal cost-sharing resumes.
When It Resets
Your out-of-pocket maximum resets to zero at the start of each new plan year. Marketplace plans reset on January 1. Employer plans may follow the calendar year or run on a different 12-month cycle, such as July through June. Whatever you paid toward last year’s cap does not carry forward.
That reset creates a timing trap for anyone with expensive ongoing treatment. A surgery in December followed by follow-up care in January means full cost-sharing again just weeks after you hit the previous year’s maximum. When scheduling is in your control, knowing where you stand relative to the cap and when it resets can save thousands.
Fixing Tracking Errors
Insurers track the accumulator automatically, but errors happen. Claims process out of order, a provider submits the wrong code, or a payment gets classified under the wrong benefit category. If you think your plan has miscounted, federal law gives you a formal path to challenge it.
Under ERISA, any time a plan pays less than the full amount of an expense or applies cost-sharing incorrectly, the decision counts as an adverse benefit determination, and you have the right to appeal.11U.S. Department of Labor. Benefit Claims Procedure Regulation FAQs You have at least 180 days from the date of the determination to file. The reviewer cannot be the person who made the original decision or anyone reporting to that person, and they must look at the full record independently.
During the appeal, you can request copies of every document the plan relied on, free of charge. If the plan fails to follow its own claims procedures or does not respond within the required timeframe, you may be treated as having exhausted administrative remedies, which opens the door to a lawsuit.11U.S. Department of Labor. Benefit Claims Procedure Regulation FAQs As a practical first step, pull the explanation of benefits for every claim and compare the running total against your plan’s online accumulator. Catching a discrepancy before you hit the cap gives you more leverage to get it corrected.
One Exception: Grandfathered Plans
Grandfathered health plans, meaning plans that existed before March 23, 2010, and have not made significant changes to benefits or cost-sharing since, are exempt from the ACA’s out-of-pocket maximum requirement.12U.S. Department of Labor. Health Reform Provisions – Grandfathered Health Plans A grandfathered plan can legally require unlimited cost-sharing from its members. Their numbers have shrunk, because any meaningful benefit cut or cost increase strips the status, but some remain in effect through large employers. If you are not sure, your plan documents or summary of benefits and coverage must disclose the grandfathered status.