Short-Term Health Insurance vs. Marketplace Health Insurance: How They Differ and Which One Fits You

Both plans can pay part of a medical bill, and both are sold to people who buy coverage on their own. That shared purpose is where the likeness ends. One is built for a short gap between other plans. The other is built to serve as a person’s main health plan for a full year. The difference shows up in what each plan covers, who can buy it, and what a buyer pays when care is needed.

How short-term health insurance works

Short-term health insurance, also called short-term limited-duration insurance, is temporary coverage. It is sold outside the health insurance marketplace. Insurers can ask health questions and can turn down an applicant based on health history. Plans can leave out care for conditions a person had before buying the plan.

These plans often cost less per month than marketplace plans. The lower monthly price comes with narrower coverage. A short-term plan may leave out maternity care, mental health care, prescription drugs, or preventive care. It may also set a dollar cap on what it pays for a claim or for a policy term. When a service is not covered, the policyholder pays the full bill for that service.

The length of a short-term plan is limited, and the limit depends on federal rules and on state rules. Those rules have changed in recent years, and some states ban or restrict these plans. A buyer should check the exact start date, end date, and renewal terms in the plan documents for the state where the buyer lives.

How marketplace health insurance works

Marketplace health insurance is sold through HealthCare.gov or a state-run exchange. These plans must follow the Affordable Care Act. They must cover a set of ten essential health benefits, which include hospital care, emergency care, prescription drugs, maternity care, mental health care, and preventive care. They cannot deny coverage for a preexisting condition. They cannot set annual or lifetime dollar caps on essential health benefits.

People can buy a marketplace plan during open enrollment, which in most states runs from November 1 to January 15. The exact dates can change from year to year, so buyers should check the current enrollment calendar. Outside that window, a person can enroll only after a qualifying life event, such as losing other coverage, moving, getting married, or having a child. People with lower incomes may qualify for a premium tax credit that lowers the monthly premium. The amount of that credit changes with income and household size, and the rules for it are set each year.

Side-by-side comparison

	Short-term health insurance	Marketplace health insurance
What it is	Temporary gap coverage sold outside the marketplace, with limited benefits	Year-round coverage sold through HealthCare.gov or a state exchange under federal standards
Who qualifies or gets it	People who pass medical underwriting in states where the plans are sold; applicants can be denied for health history	People who apply during open enrollment or after a qualifying life event; no denial for a preexisting condition
Costs	Often a lower monthly premium, but narrower coverage, possible benefit caps, and full payment for excluded services	Monthly premiums vary by plan, age, and place; premium tax credits may lower the cost for eligible buyers, and yearly limits on out-of-pocket costs are set by federal rules
Pros	Can start fast, can cost less per month, and can fill a short gap in coverage	Covers essential health benefits, protects people with preexisting conditions, and may come with a tax credit
Cons	Can deny applicants, can exclude preexisting conditions and some types of care, and does not last as a long-term plan	Can cost more per month without a tax credit, and enrollment is limited to open enrollment or a qualifying life event

Verdict

Choose marketplace health insurance if you need ongoing care, take prescription drugs on a regular basis, have a preexisting condition, are pregnant or plan to become pregnant, or want a plan that will still be in place a year from now. Choose it also if you may qualify for a premium tax credit, since that credit applies only to marketplace plans.

Choose short-term health insurance only if you are in good health, need coverage for a short and defined gap, and accept the limits in writing. That gap could be the wait for a new job’s plan to start or the wait for the next open enrollment period. Read the list of excluded services first. If the care you are most likely to need is on that list, the lower monthly premium does not make the plan a fit.

When the choice is close, the safer test is simple. Ask what happens if a serious illness or injury occurs during the plan term. A marketplace plan must cover essential health benefits and cannot cap what it pays for those benefits in a year. A short-term plan may not. For most people who need a plan they can rely on, that difference settles the choice.

Explainer based on program rules published by the Centers for Medicare and Medicaid Services, HealthCare.gov, and the Kaiser Family Foundation.