Health insurance has several different prices inside one policy. The monthly premium is only the price of keeping the coverage active. What you pay when you actually use care can be just as important.
The five cost terms to understand
| Term | Plain-English meaning |
|---|---|
| Premium | The amount you pay for coverage, usually every month, whether or not you use medical care. |
| Deductible | The amount you pay for certain covered services before the plan begins paying according to its rules. |
| Copay | A fixed dollar amount for a covered service, such as a doctor visit or prescription. |
| Coinsurance | A percentage of the allowed cost that you pay for a covered service. |
| Out-of-pocket maximum | The most you pay in a plan year for covered in-network benefits that count toward the limit; after that, the plan pays 100% of covered benefits for the rest of the plan year. |
HealthCare.gov notes that premiums generally do not count toward the out-of-pocket maximum. Costs for non-covered services, out-of-network care and amounts above a plan’s allowed amount also generally do not count.
Compare three scenarios, not one
A practical way to compare plans is to model a low-use year, a normal year and a high-use year.
- Low-use year: annual premiums plus expected routine copays and prescriptions.
- Normal year: premiums plus your typical specialist visits, labs, imaging and prescriptions.
- High-use year: annual premiums plus the plan’s out-of-pocket maximum for covered in-network care.
This does not predict the future, but it shows whether a low-premium plan creates a financial burden if you unexpectedly need major care.
Check the network before the deductible
A plan can have attractive cost sharing but still be a poor fit if your doctors, hospitals or specialists are out of network. Search the insurer’s current provider directory and confirm directly with important providers when possible. Provider networks can change, so verify for the specific plan, not just the insurance company’s brand.
Check prescriptions one by one
Review the plan formulary for each medication you use. Look at the tier, copay or coinsurance, prior authorization, step therapy and quantity limits. Two plans with similar medical benefits can have very different prescription costs.
Understand the deductible details
Some services may be covered before the deductible; others may require the deductible first. Family plans can also use individual and family deductible structures. Do not assume the deductible is one simple number that applies identically to every service.
Estimate total annual premium
Multiply the monthly premium you actually pay by 12. If you qualify for a Marketplace premium tax credit, compare the amount you pay after the applicable credit, and remember that eligibility and final reconciliation depend on tax and income rules.
A consumer comparison worksheet
- Annual premium you pay.
- Individual and family deductible.
- Primary-care, specialist, urgent-care and emergency-room cost sharing.
- Hospital and outpatient surgery cost sharing.
- Prescription formulary and pharmacy network.
- Out-of-pocket maximum.
- Doctors and hospitals in network.
- Out-of-network benefits, if any.
- Referral and prior-authorization rules.
- HSA eligibility, if relevant.
Frequently asked questions
Is the plan with the lowest premium always cheapest?
No. HealthCare.gov specifically warns that a low-premium plan may not be the best fit if you need substantial care because deductibles and other cost sharing can be higher.
Does the out-of-pocket maximum include my premium?
No. Marketplace guidance states that monthly premiums do not count toward the out-of-pocket maximum.
After I hit the out-of-pocket maximum, is everything free?
The plan generally pays 100% of covered in-network benefits for the rest of the plan year. Non-covered services and other excluded costs can still be your responsibility.
Should I choose an HSA-eligible plan just for the tax benefits?
Not automatically. Compare the deductible, network, expected medical use and ability to fund the HSA as part of the full decision.
Sources and further reading
Reviewed October 3, 2026. Health plan benefits, networks, formularies and cost-sharing rules vary by plan and can change each plan year.
