If you have ever typed "cheap health insurance" into a search box between jobs, you have seen them: short-term health plans with monthly premiums that look like a rounding error compared to a Marketplace quote.
A $180 monthly bill versus $600 gets attention fast, especially when COBRA paperwork is sitting on your kitchen table.
Here is the part the ads tend to whisper.
These plans are not required to cover the ten essential health benefits that Affordable Care Act plans must include.
Prescription drugs, maternity care, mental health treatment, and substance use care can be excluded or capped.
Insurers in most states can also turn you down or charge more based on your medical history, which Marketplace plans cannot do.
The money math gets worse when you actually use the coverage.
A Commonwealth Fund analysis of short-term plans sold in 2024 found that none of the plans reviewed covered all ten essential benefits, and many came with per-day hospital caps or annual limits that leave the patient holding the rest of the bill.
One plan in the review capped hospital stays at $2,000 a day.
A single uncomplicated night in an American hospital often runs several times that before a doctor walks in.
The insurers selling the plans, obviously, because they collect premiums while avoiding expensive claims.
But also the brokers and lead-generation websites that earn commissions per enrollment, which is why your inbox fills up every time you price a Marketplace plan.
That does not make every short-term plan useless.
If you are between jobs for two months, healthy, and mainly want protection against a catastrophic accident, a short-term plan can beat going uninsured, which leaves you exposed to full-price bills with no negotiated rates.
The key is reading the actual policy document, not the quote page.
Look for the words "excluded," "not covered," and "maximum benefit" and count how often they appear.
A few practical guardrails before you buy.
Check your state's rules first, because some states limit short-term plans to three or six months, and a handful effectively ban them.
Confirm whether pre-existing conditions are excluded entirely, since a diagnosis from last year can void coverage for anything related.
And price a Marketplace plan with subsidies before you decide, because the gap is often smaller than the ads imply once tax credits are applied.
Losing a job usually qualifies you for a special enrollment window.
The renewal trap is worth knowing about too.
Short-term plans can be renewed or stacked, and some sellers market them as year-round coverage.
Renewal is not guaranteed, and a new diagnosis between terms can make you uninsurable under the next policy.
That is not insurance in the traditional sense.
It is a series of bets that reset against you.
If you are healthy, temporarily covered, and clear-eyed about the gaps, a short-term plan can be a bridge.
If you have any ongoing condition, take any regular medication, or are planning a family, the cheap premium is likely a down payment on a much larger bill.
Our take: short-term plans are a tool, not a substitute, and the marketing around them is designed to blur that line.
Compare the total cost of getting sick, not the monthly sticker price, before you hand over a card number.
Final Thoughts
The cheapest premium is rarely the cheapest outcome.