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Short-Term Health Insurance: When It Makes Sense, When It Doesn't

Updated May 28, 20267 min readBy Plansure brokers

Short-term medical insurance is the fastest and usually the cheapest way to get health coverage. Plans can start tomorrow. Premiums are often 40 to 70 percent lower than equivalent ACA marketplace plans. You don't need to wait for open enrollment.

It is also the most misunderstood product in the market. STM doesn't cover pre-existing conditions. It doesn't count as minimum essential coverage under the Affordable Care Act. And the benefits are capped in ways that ACA plans are not. Here is when it's the right tool and when it isn't.

What short-term medical actually is

Short-term medical was designed for gaps. You're between jobs and your new employer's plan starts in 60 days. You're aging off your parents' plan and waiting for open enrollment. You missed your Special Enrollment Period and need something until November.

STM plans cover the catastrophic stuff. Hospital admission, surgery, emergency rooms, diagnostic tests. They typically don't cover preventive care, maternity, mental health, or substance abuse treatment. Pre-existing conditions are excluded for the duration of the policy.

How long you can have it

Federal rules currently allow STM plans up to 12 months with the option to renew up to 36 months total. Some states cap shorter than that. Arizona, Florida, Texas, Missouri, Alabama, and Ohio all allow the federal maximum.

California, New York, and Massachusetts ban or severely restrict short-term medical. New Mexico and Colorado cap it at 3 months. Always check your state before assuming the plan you saw advertised is available where you live.

When STM is the right tool

STM is the right call when all three are true:

  • You're healthy, with no pre-existing conditions you'd need treated during the policy term.
  • You need coverage for a defined window (under 12 months) and have a clear next step (new job, marketplace open enrollment, Medicare eligibility).
  • Your alternative is going uninsured because ACA premiums without subsidy are too expensive.

When STM is the wrong tool

Three situations where STM will leave you exposed:

  • You have a pre-existing condition that needs ongoing care. STM will exclude treatment for it, and any complication can trigger a claim denial.
  • You're pregnant or planning to be. STM does not cover maternity. A normal delivery without complications costs $13,000 to $20,000 cash.
  • You qualify for an ACA subsidy that brings the marketplace premium below the STM premium. This happens more often than people think. Always price both before choosing.

Reading an STM policy before you buy

Three numbers matter most. The deductible (often $2,500 to $10,000). The coinsurance after deductible (commonly 80/20 or 70/30). The total benefit cap (often $1 million per term, sometimes lower).

Check the prescription drug coverage separately. Many STM plans either don't cover drugs at all or have a separate drug deductible. If you take regular medication, get those drug costs in writing before you buy.

What we tell clients

STM is a legitimate product when used as designed. A bridge between two real coverage situations. It is not a replacement for ACA coverage if you have ongoing health needs. Anyone selling it as a permanent replacement for marketplace coverage is selling it wrong.

Our brokers will quote both side by side. Sometimes STM wins. Sometimes it doesn't. The math depends on your income, your state, and your health.

This article is for general education and is not a substitute for advice from a licensed insurance broker, CPA, or attorney. Plan availability, premiums, and subsidy rules change frequently. Confirm specifics with a licensed broker before making a coverage decision. Plansure is not affiliated with or endorsed by any government agency.