Short-Term Health Insurance: Costs, Exclusions and Coverage Gaps

A tent may help for a short trip, but it offers different protection from a house. Short-term health insurance also offers different protection from an ACA comprehensive plan. A low premium alone cannot tell you whether it is suitable for your gap in coverage.

Use the Health Plan Price Estimator to compare estimated monthly prices, deductibles, copays and service limits by state, age and household group. The result is a planning estimate, not a quote or verification of policy benefits. Consider exclusions and limits as risks rather than assuming every medical bill is covered.

What is a short-term policy?

Short-term, limited-duration insurance is temporary private coverage. In states where products are available, applications may be accepted outside Marketplace enrollment periods. A seller may advertise a quick start, but acceptance, payment and the actual effective date depend on the policy. Never assume next-day coverage.

These policies are generally exempt from the ACA rules governing individual comprehensive coverage. They may use medical underwriting, reject applicants or exclude preexisting conditions. They are not eligible for Marketplace premium tax credits. HealthCare.gov explains qualifying coverage.

Read exclusions before comparing premiums

Look for restrictions on pregnancy and delivery, mental health services, prescription drugs, preventive care and conditions that existed before enrollment. A policy may exclude a service entirely, pay a fixed amount or impose a separate dollar limit. A deductible does not make an excluded service covered.

Ask for the full policy, exclusions, renewal terms and claims process. Find out whether the insurer can investigate earlier medical history after a claim, how it defines a preexisting condition and what happens if you need care outside the network.

Duration and state availability

As checked on October 22, 2026, the federal regulatory definition specifies no more than 3 months initially and 4 months total, including renewals or extensions. Separately, an August 7, 2025 joint federal statement says the departments do not intend to prioritize enforcement of failures to meet the 2024 definition until future rulemaking is issued and applicable, and recognizes state enforcement approaches. That enforcement position does not itself rewrite the regulation or guarantee a longer policy. Federal requirements, state restrictions and the actual policy terms still need checking. Ask the state's insurance department to confirm current rules, then obtain the term and any permitted renewals in writing.

A policy term, renewal and state availability must be confirmed for the specific product before applying. Availability elsewhere does not establish availability in your state.

The specific private plans discussed here cannot be sold in Washington. That restriction does not apply to all health coverage. Washington residents can seek ACA plans through Washington Healthplanfinder.

What does it really cost?

There is no verified quote range in this guide. Compare the premium plus deductible, cost sharing, uncovered services and potential bills above benefit limits. A short-term premium may be lower because the policy covers less or accepts fewer applicants; an ACA plan with financial assistance may cost less for an eligible household.

Before buying, check an employer plan, a spouse's plan, COBRA, Medicaid or CHIP, and ACA Marketplace eligibility. Losing qualifying employer coverage may create a Marketplace enrollment opportunity. See coverage between jobs.

When should you be especially cautious?

An ongoing condition, pregnancy, costly medication or uncertain coverage start date makes exclusions particularly important. Being healthy today does not prevent a new illness or accident tomorrow. Even for a brief gap, check whether you can afford an uncovered hospitalization.

Expiration of a short-term policy generally does not qualify as loss of qualifying coverage for Marketplace special enrollment. Do not assume it will let you enter an ACA plan immediately. HealthCare.gov explains special enrollment.

Common questions

Can I buy at any time? Some products accept applications year-round, where available. Acceptance and start dates are not guaranteed.

Does a low deductible protect me from a large bill? Only for services the policy covers, and subject to its other limits. Benefit caps and exclusions can leave costs beyond the deductible.

Is it a good bridge to another plan? It may cover some risks, but compare comprehensive options first and verify your next plan's start date. It does not provide equivalent ACA protection.

Check the worst case

Request written answers and compare them with the policy. Use the out-of-pocket calculator only for costs its model can represent; excluded bills and insurer payment caps may require a separate calculation. Recheck current state and federal requirements before purchase.

Compare your documented inputs in the Health Plan Comparison Calculator, then confirm the coverage, provider network and enrollment dates before choosing a plan. For related budgeting, see the HSA guide, FSA guide, medical expense calculator, out-of-pocket calculator and health calculators.