Health Insurance

The core idea

Health insurance helps transfer the risk of large medical bills. You pay a premium to keep coverage active, and the plan pays part of eligible health care costs according to its rules.

A plan is more than its monthly price. Its deductible, provider network, cost sharing, and out-of-pocket limit affect what care is available and how much you may pay during the year.

The terms to know

Premium: The amount you pay to keep the policy active. You owe it whether or not you receive medical care.

Deductible: The amount you generally pay for covered care before the insurer begins sharing many costs. Some services may be covered before you meet it, so check the plan documents.

Network: The doctors, hospitals, pharmacies, and other providers that have contracted with the plan. In-network care usually costs less. Some plans provide limited or no nonemergency coverage outside the network.

Also check copayments, coinsurance, and the out-of-pocket limit. A copayment is a fixed charge for a service. Coinsurance is a percentage of an allowed cost. The out-of-pocket limit caps what you pay for covered, in-network care during the plan year, but premiums and noncovered services generally do not count toward it.

How the costs work together

Plans often exchange higher upfront costs for lower costs when you receive care, or the reverse. A plan with a lower premium may have a higher deductible and more cost sharing. A plan with a higher premium may begin paying sooner.

Compare plans using total possible cost, not premium alone:

1. Add the annual premiums.
2. Estimate expected copayments, deductible spending, and coinsurance.
3. Consider the in-network out-of-pocket limit as a high-cost scenario.
4. Check whether your doctors, hospitals, and prescriptions are covered.
5. Include any employer contribution or tax advantage available to you.

The lowest-cost plan for a healthy year may not be the best protection for a year with extensive care.

A practical comparison

Suppose one plan has lower premiums but a higher deductible, while another has higher premiums and lower cost sharing. If you expect little care and can cover the larger deductible from savings, the first plan may cost less. If you expect regular appointments, prescriptions, or a procedure, the second may produce a more predictable total cost.

Network differences can outweigh those estimates. A preferred doctor or nearby hospital may be out of network, and a prescription may fall into a costly tier. Confirm those details with the insurer and providers before enrolling.

Some qualifying high-deductible health plans can be paired with a health savings account. Learn what an HSA is and review HSA eligibility before assuming your plan qualifies.

Your next step

Gather each plan’s summary of benefits and coverage. Compare annual premiums, the deductible, cost sharing, the out-of-pocket limit, the provider network, and prescription coverage. Then test each plan against both an ordinary year and a high-cost year.

Keep enough accessible savings to cover the amount you may owe before the plan pays more. Health insurance belongs in the same protective base as your emergency fund, as explained in Build Your Financial Base First. For help deciding how much coverage is worth buying, read When Insurance Is Worth Paying For.