The pitch lands in your inbox right after a layoff or a quit: coverage starting tomorrow, premiums under $200 a month, no waiting for open enrollment.
For millions of Americans staring down a $700-plus monthly COBRA bill, short-term health insurance looks like the obvious lifeline.
It usually isn't, and the gap between what buyers think they're getting and what the policy actually covers is where the real damage happens.
Short-term plans were originally designed as stopgaps lasting a few months.
Federal rules loosened in 2018 stretched them to just under 12 months, and some insurers stack renewals for up to three years.
That longevity makes them feel like real insurance.
They're exempt from the Affordable Care Act's ten essential health benefits, which means no guaranteed coverage for maternity care, mental health treatment, prescription drugs, or substance abuse.
A plan might cap prescription coverage at a few hundred dollars a year, so a single specialty medication runs five figures out of pocket.
Cancer treatment, ER visits, and hospital stays often carry separate limits.
Insurers can also dig through your medical history and rescind a policy or deny a claim over a condition you forgot to mention on a five-page application.
A Kaiser Family Foundation review found that nearly half of short-term plan applicants had a pre-existing condition that could trigger denial.
A 40-year-old might pay $150 a month instead of $550 for an ACA marketplace plan.
But one appendectomy, one broken leg, or one surprise diagnosis can produce a bill larger than a decade of premium savings.
Short-term plans rarely cap total out-of-pocket spending the way ACA plans do, so there's no ceiling protecting you.
If you're between jobs for 60 days, healthy, and have savings to absorb a worst-case scenario, a short-term plan can bridge a genuine gap.
Some people use them while waiting for marketplace coverage to start.
The mistake is treating one as a long-term substitute, especially if you're over 50, managing any chronic condition, or planning to start a family.
Before you buy, three checks matter more than the premium.
First, read the list of excluded benefits and confirm whether prescriptions and mental health are covered at all.
Second, look for a lifetime or per-condition maximum — if you find one, understand that's your real exposure.
Third, compare against a marketplace plan with subsidies, because many households qualify for tax credits that shrink the price gap dramatically.
Losing a job counts as a qualifying life event, so you can enroll outside open enrollment.
If you're healthy, temporarily uninsured, and clear-eyed about the risks, a short-term plan can serve a narrow purpose.
Everyone else should treat the low premium as a warning, not a deal.
Final Thoughts
Cheap coverage that vanishes the moment you need it isn't insurance — it's a monthly fee for the feeling of being insured.