Short-term health insurance is temporary medical coverage sold outside the Affordable Care Act’s rules, designed to fill a gap between other plans. Premiums run substantially lower than ACA marketplace coverage, but so does the protection: insurers can deny you for pre-existing conditions, cap total payouts, and leave out entire categories of care like maternity and mental health treatment. It works well as a bridge for someone healthy who knows another plan is coming. It works badly for almost everyone else.
How It Differs From ACA Coverage
Federal law treats short-term, limited-duration insurance as a separate category from “individual health insurance coverage,” which means the consumer protections built into ACA plans don’t apply.1Centers for Medicare & Medicaid Services. Short-Term, Limited-Duration Insurance Fact Sheet That exemption shapes almost everything about how these plans behave.
ACA plans have to accept everyone regardless of health history, cover ten categories of essential health benefits, drop lifetime and annual dollar limits on covered care, and provide preventive services at no out-of-pocket cost. Short-term plans do none of that by default. Insurers can reject applicants based on health status, exclude whatever benefit categories they want, cap total payouts, and charge full price for routine preventive visits. The lower premium is the direct result of those stripped-down protections.
What Short-Term Plans Cover and Exclude
Most short-term plans cover the basics you’d expect: hospital stays, emergency room visits, surgery, and doctor’s office visits. Past that, details vary sharply between insurers and plan tiers. Some include limited prescription drug benefits; some exclude medications entirely. Even the coverage that exists often comes with tight per-service caps that would fall well short of a serious illness.
The exclusions matter more than the inclusions. Common gaps include:
- Pre-existing conditions. Every short-term plan excludes them. If you were treated for or diagnosed with a condition before enrolling, treatment for that condition won’t be covered.
- Maternity care. Pregnancy and childbirth are almost never covered.
- Mental health and substance abuse treatment. When plans include these at all, coverage limits are severe. Research on available plans found outpatient mental health benefits capped as low as $50 per visit and inpatient stays limited to 31 days.2KFF. Examining Short-Term Limited-Duration Health Plans
- Prescription drugs. Plans that cover prescriptions frequently cap pharmacy benefits between $1,000 and $5,000 per policy term.2KFF. Examining Short-Term Limited-Duration Health Plans
- Preventive care. Unlike ACA plans, short-term policies can charge full price for screenings, vaccinations, and wellness visits.
The biggest single risk is the total benefit cap. ACA plans cannot impose lifetime or annual dollar limits on essential health benefits. Short-term plans can, and do. Maximum payouts per policy term have been found as low as $100,000, which a single hospitalization could exhaust.2KFF. Examining Short-Term Limited-Duration Health Plans Once you hit that cap, every dollar above it is yours. Other plan-level restrictions can include limits on emergency room visits (sometimes capped at three per term) and additional deductibles for inpatient care on top of the plan’s main deductible.
How Pre-Existing Conditions Get Defined
This is where short-term insurance trips people up most often. Plans typically use a lookback period: if you received treatment, were diagnosed, or had symptoms of a condition within that window before your coverage started, the plan won’t pay for related care. Some plans apply a “prudent person” standard, meaning that if your symptoms were the kind that would have caused a reasonable person to seek medical advice, the condition can be classified as pre-existing even if you never saw a doctor for it.2KFF. Examining Short-Term Limited-Duration Health Plans That gives insurers meaningful discretion to deny claims after the fact.
What It Actually Costs
Monthly premiums are substantially lower than ACA marketplace plans. Individual short-term coverage typically runs roughly $100 to $200 per month depending on the plan’s benefit level and the applicant’s age and health. That’s a fraction of what an unsubsidized ACA Silver plan costs in most markets.
The lower premium comes with tradeoffs. Short-term plans typically carry higher deductibles, and many services carry copays or coinsurance even after the deductible. Combined with the benefit caps above, a serious illness could leave you responsible for tens of thousands of dollars. Short-term insurance is cheaper because it transfers more risk to you. Stay healthy through the term and you save money. Something goes wrong and you may end up paying more than you would have under an ACA plan with no annual limits.
One cost point worth checking before you buy: short-term premiums don’t qualify for ACA premium tax credits or cost-sharing reductions. If you qualify for marketplace subsidies, a subsidized ACA plan can cost less per month than a short-term policy while covering far more.
Who It Actually Fits
Short-term coverage makes sense as a bridge when you know another plan is coming. Common scenarios:
- Between jobs, when an employer imposes a 30- to 90-day waiting period before benefits start.
- Aging off a parent’s plan at 26, especially if you’ve missed open enrollment or need time to weigh options.
- Early retirement before Medicare eligibility at 65, though the pre-existing condition exclusion makes this risky for anyone with chronic issues.
- Waiting for the next ACA open enrollment period, since short-term plans have no enrollment window.
Short-term insurance is a poor fit if you take regular medications, manage a chronic condition, are pregnant or planning to become pregnant, or need mental health treatment. Those situations tend to fall under a pre-existing condition exclusion, leaving you paying out of pocket for exactly the care you need most.
How Long a Policy Can Last
Maximum policy length depends on federal rules and, more strictly, on your state. The federal picture has shifted repeatedly. A 2024 final rule limited initial terms to three months with a total coverage period of four months including any renewals or extensions. As of August 2025, the federal Departments of Labor, Health and Human Services, and Treasury announced they would not prioritize enforcing the 2024 duration limits, and that non-enforcement stance remains in effect while a new proposed rule is developed, expected by summer 2026.3Centers for Medicare & Medicaid Services. Statement Regarding Short-Term, Limited-Duration Insurance Insurers in many states are again selling plans with initial terms approaching 12 months, as they did under an earlier 2018 framework that allowed terms up to 364 days with renewals extending coverage up to 36 months.4Federal Register. Short-Term, Limited-Duration Insurance
State rules can be stricter. Five states prohibit the sale of short-term health plans entirely: California, Illinois, Massachusetts, New Jersey, and New York. In nine additional states plus the District of Columbia, short-term plans are technically legal but none are available, because state regulations require consumer protections that make the product commercially unviable.2KFF. Examining Short-Term Limited-Duration Health Plans In states where these plans are sold, caps on maximum duration, renewability, and required disclosures vary. Check your state insurance department’s current rules before buying.
Enrolling and Getting Approved
Unlike ACA marketplace plans, which generally require signing up during open enrollment (typically November through mid-January) or after a qualifying life event, short-term insurance can be purchased any time of year. Coverage can start within days of approval, sometimes the next day. That immediacy is one of the product’s main selling points.
The application involves medical underwriting. You’ll answer health questions, and the insurer decides whether to offer a policy and at what price based on your health history. This is the opposite of the ACA, where insurers must accept everyone at the same price regardless of health. Significant health conditions can get your application denied outright.
Renewal is not guaranteed. When your term ends, most insurers require a new application rather than rolling coverage forward, which triggers fresh underwriting. Any condition that developed during your previous term can be treated as pre-existing and excluded from the new policy. Deductibles and out-of-pocket totals reset with each new policy as well.
Cancellation and the Coverage Gap Trap
You can generally cancel a short-term policy at any time, often without a penalty. Premiums already paid for the current billing cycle are typically non-refundable, though some insurers prorate refunds. Terms vary by insurer.
The insurer can cancel too. The common reasons are non-payment, exceeding the policy’s benefit cap, and misrepresentation on the application. That last one deserves attention. If an insurer finds you omitted or misstated health information, it can rescind the policy retroactively, voiding it as if it never existed. When that happens after you’ve received care, you become personally responsible for every dollar the plan paid on your behalf. A missed payment can also result in an immediate coverage lapse; short-term plans rarely offer the kind of grace period ACA plans provide.
One consequence catches people off guard at the end of the term. Short-term insurance does not count as minimum essential coverage under federal regulations.5eCFR. 26 CFR 1.5000A-2 – Minimum Essential Coverage Because it doesn’t, losing a short-term plan does not trigger a Special Enrollment Period on the ACA marketplace.2KFF. Examining Short-Term Limited-Duration Health Plans If your policy expires in April and you want ACA coverage, you generally have to wait until the next open enrollment period in the fall. Time the end of any short-term policy so it lines up with an ACA enrollment window, because the space between the two is a gap with no coverage at all.