Quick overview

An out-of-pocket maximum (OOPM) protects you from catastrophic medical costs by capping the amount you pay for covered care in a plan year. After you reach that cap, your insurer generally covers 100% of additional covered, in-network costs for the rest of the year. Understanding what counts toward that cap, and what doesn’t, helps you budget and choose the right plan.

What counts toward an out-of-pocket maximum?

Most health plans count the following toward your OOPM:

  • Deductibles: The amount you pay before your insurance starts to share costs.
  • Copayments: Fixed amounts you pay for visits or prescriptions (for example, $30 per doctor visit).
  • Coinsurance: Your percentage share of a covered claim after the deductible (for example, 20% of a hospital bill).

Plans, especially employer-sponsored and ACA marketplace plans, will list which specific line items count toward the OOPM in the Summary of Benefits and Coverage (SBC). Always review the SBC or ask your plan representative for a clear line-by-line explanation (HealthCare.gov).

Sources: HealthCare.gov — “Out-of-pocket maximum/limit” (https://www.healthcare.gov/glossary/out-of-pocket-maximum-limit/).

What does not usually count toward an OOPM?

  • Monthly premiums: Your recurring premium payment does not reduce the OOPM.
  • Services not covered by your plan: If your insurer labels a service as excluded, you’ll likely pay 100% and it won’t count toward the cap.
  • Balance billing from out-of-network providers: Charges above the insurer’s allowed amount often don’t apply to the in-network OOPM and can lead to surprise bills.
  • Certain plan-specific items: Some plans carve out dental, vision, or certain drug tiers from the medical OOPM.

Tip: If a large bill seems to count differently from what you expect, ask for an itemized explanation and compare it with the SBC.

In-network vs. out-of-network — why it matters

Most OOPMs apply only to in-network covered services. Out-of-network care can be excluded or subject to a separate, often much higher, OOPM. For example, a medical emergency at an out-of-network facility can create two problems: higher cost-sharing and charges that don’t count toward your in-network OOPM. Some states and federal rules (and certain plan types) limit surprise bills; check state law and plan documents and consult this guide on how deductibles interact with broader budgeting: How Deductibles and Out-of-Pocket Maximums Work.

How Medicare and Medicaid handle OOPMs

  • Medicare (Original Medicare): Original Medicare (Part A and Part B) does not have an annual out-of-pocket maximum for all services the way many commercial plans do. Many beneficiaries use supplemental Medigap plans or enroll in Medicare Advantage (Part C) plans to limit their annual exposure.
  • Medicare Advantage (MA/Part C): MA plans are required to have an annual maximum out-of-pocket limit for in-network services. The exact limit varies by plan and is updated annually by CMS. If you rely on Medicare, review plan-specific OOPM details on CMS tools.
  • Medicaid: Coverage and out-of-pocket rules vary widely by state. Many Medicaid programs have low or no OOP limits for covered services, but state rules and specific beneficiary categories affect cost-sharing. For authoritative guidance, consult your state Medicaid office or CMS resources.

Source: Centers for Medicare & Medicaid Services (CMS) guidance on Medicare Advantage plan limits (https://www.cms.gov).

Interaction with High-Deductible Health Plans (HDHPs) and HSAs

HDHPs typically have higher deductibles and can pair with Health Savings Accounts (HSAs). For HSA-eligible HDHPs, the IRS sets annual threshold rules (minimum deductible and maximum OOP limits) that determine eligibility for HSA contributions. These IRS limits are updated each year, so check current IRS guidance before assuming a plan qualifies for an HSA.

For planning, remember two points:

  1. A higher OOPM generally lowers monthly premiums but increases the financial risk in a bad year.
  2. HSA funds can be used to pay expenses that count toward your OOPM, offering tax-advantaged flexibility. See our resource on HSAs for more on this interaction: How Health Savings Accounts Work with High-Deductible Plans.

Practical steps to manage your OOP exposure

  1. Read the SBC before enrolling: The Summary of Benefits and Coverage lists which costs count toward OOPM and how in-network vs. out-of-network are handled.
  2. Track expenses: Use your insurer’s online account or a spreadsheet to track how close you are to your OOPM during the year.
  3. Use in-network care when possible: Confirm network status before non-emergency procedures.
  4. Ask for cost estimates: For elective procedures, request an itemized estimate and ask which costs count toward the OOPM.
  5. Negotiate bills if needed: If you receive a surprise out-of-network bill, contact the insurer and provider; many hospitals will set up payment plans or offer financial assistance.

In my practice, clients who track cumulative payments and confirm which invoices count toward the OOPM avoid unpleasant surprises and plan emergency savings more effectively.

Real-world example (practical illustration)

A family has a plan year OOPM that applies only to in-network covered services. They hit the deductible and paid copays and coinsurance for a surgery and several follow-up visits. When their cumulative payments toward covered, in-network services reached the OOPM, the remainder of that plan year’s covered, in-network care was paid 100% by the insurer. They still continued to pay monthly premiums, and a handful of out-of-network charges did not count toward the OOPM.

Common mistakes and misconceptions

  • Mistake: Assuming premiums reduce your OOPM. Fact: Premiums are separate and do not count toward the OOPM.
  • Mistake: Believing out-of-network bills always count toward the in-network OOPM. Fact: They usually do not; check for a separate out-of-network OOPM or state protections.
  • Mistake: Ignoring the SBC and plan exclusions. Fact: Not all services (e.g., long-term care, cosmetic procedures) are covered or counted.

Frequently asked questions

Q: Does the OOPM reset each year?
A: Yes—your plan year determines when it resets. Most plans reset on the calendar year (January 1) or the employer’s plan year; check your policy documents.

Q: Can I negotiate the OOPM?
A: The OOPM itself is a plan feature and not negotiable for an individual once set, but you can shop different plans during open enrollment and choose one with a lower OOPM.

Q: What if a provider bills me after I’ve hit my OOPM?
A: Request an itemized bill and confirmation from your insurer that the service was adjudicated as in-network and applied to the OOPM. If the provider balance-billed you, contact your insurer and your state insurance regulator.

Next steps and resources

Professional disclaimer

This article is educational and based on current public guidance as of 2025. It is not legal, tax, or healthcare advice. For decisions about coverage that affect your health or finances, consult a licensed insurance broker, benefits advisor, or healthcare professional.

Sources