Short-term health insurance: is it worth it?

How short-term health insurance works

Short-term medical (STM) is medically underwritten coverage sold outside the ACA marketplace. Because carriers can decline you or exclude pre-existing conditions, premiums are typically much lower than ACA plans — but the coverage is narrower and comes with real gaps.

Duration limits

Under current federal rules (in effect for 2026), short-term plans are capped at an initial term of up to 4 months, with a maximum total duration of 4 months including renewals with the same carrier. Some states are more restrictive: California, Colorado, New Jersey, New York, and Massachusetts effectively prohibit them; several others cap them at 3 months or ban renewals. Always verify what's sold in your state before quoting.

What's covered — and what isn't

Usually covered: emergency room visits, hospital stays, surgery, some doctor visits and labs, and (on many plans) limited prescription coverage.

Commonly excluded or limited:

• Pre-existing conditions — anything you were diagnosed with or treated for in the last 12–60 months
• Maternity and childbirth
• Mental health and substance use treatment (very limited)
• Preventive care without cost-sharing (ACA plans cover it 100%; STM usually doesn't)
• Prescription drugs — often a discount card rather than real coverage

STM plans are not minimum essential coverage. They don't satisfy the state mandates in CA, DC, MA, NJ, RI, and VT.

How much do they cost?

Rough national ranges for a healthy 35-year-old non-smoker in 2026:

• Premium: $80–$200/month
• Deductible: $2,500–$10,000
• Coverage max: $250,000–$2M lifetime (some plans have per-injury/illness caps that are much lower)

Compare that to an unsubsidized ACA bronze plan at $400–$600/month for the same person. The savings look big — until you have a claim that hits an exclusion.

When short-term is the right call

• You're between jobs and starting a new one with benefits in 60 days or less.
• You missed Open Enrollment, don't qualify for a Special Enrollment Period, and just need a stop-gap until the next window.
• You're waiting out a 3–4 month gap before Medicare starts at 65.
• You're young, healthy, have no chronic conditions, and understand you're carrying real financial risk.

When it's the wrong call

• You have any chronic condition, prescription, or pregnancy plans.
• You'd qualify for a marketplace subsidy — a subsidized silver plan is almost always cheaper and better.
• You need coverage for longer than 4 months.
• You live in a state that doesn't allow STM or limits it heavily.

Better alternatives to check first

1. ACA marketplace with subsidy — if a life event or missed-deadline SEP applies.
2. Private off-exchange PPO — comprehensive coverage, sold year-round, no subsidy but no exclusions.
3. COBRA — expensive but keeps your exact plan and network.
4. Spouse's employer plan — a job loss usually triggers a 30-day SEP to join.
5. Medicaid or CHIP — enrollment is year-round if you qualify by income.

Frequently asked questions

Is short-term health insurance ACA-compliant?
No. It's regulated at the state level and doesn't have to cover essential health benefits or pre-existing conditions.

Can I be denied?
Yes. STM is medically underwritten — carriers review your health history and can decline or rate up.

Can I renew a short-term plan?
Under current federal rules, total duration is capped at 4 months with a given carrier. Some brokers stack policies from different carriers, but every new policy re-underwrites and any new condition becomes a pre-existing exclusion.

Will short-term cover COVID or the flu?
Testing and treatment are often covered subject to the deductible; preventive vaccines usually aren't.