Short-term plans can cost a third of an ACA marketplace plan, but the two products solve different problems. One is temporary gap coverage; the other is comprehensive insurance with legal protections. This comparison shows exactly what you give up at each price point.
Side-by-Side: The Core Differences
| Feature | Short-term plan | ACA marketplace plan |
|---|---|---|
| Typical premium (age 30, 2026) | $90–$180/month | $350–$480/month before subsidies |
| Pre-existing conditions | Not covered, can be denied | Always covered, no pricing penalty |
| Essential health benefits | Usually not all 10 | All 10 required by law |
| Annual/lifetime caps | Common ($250k–$2M) | Prohibited |
| Subsidies | None | Premium tax credits if income-eligible |
| Max duration (federal rule) | Up to 4 months total | Full year, renewable |
If your income qualifies for premium tax credits, an ACA bronze plan can end up cheaper than short-term coverage after the subsidy is applied — always run both numbers before buying.
When a Short-Term Plan Makes Sense
- You missed open enrollment and have no qualifying event
- A 2–4 month gap between employer plans (new job waiting period)
- You are healthy, need mainly catastrophic protection, and accept exclusions
- Early retirement before Medicare eligibility, as a bridge
The catch: short-term plans underwrite applicants. If you take a daily medication or have seen a doctor for a chronic condition in the last 3–5 years, expect either a denial or a rider that excludes that condition entirely.
When the ACA Plan Is the Only Sensible Choice
Pregnancy, cancer treatment, diabetes, heart disease, or any planned surgery — none of these will be covered by a short-term policy. ACA plans also cannot cap what they pay out over your lifetime, which matters enormously for serious diagnoses.
Special enrollment periods
Losing job coverage, marrying, having a baby, or moving to a new county all open a 60-day special enrollment window on the marketplace. Use it before resorting to a short-term plan.
Frequently Asked Questions
Can I renew a short-term plan month after month?
Under current federal rules, initial duration caps at about 4 months with no renewal beyond that. Some state rules are stricter; a few states ban these plans outright.
Do short-term plans cover prescriptions?
Usually only a limited drug discount card, not real formulary coverage. Check the exclusions sheet — it lists what is actually paid.
What happens if I get sick on a short-term plan?
Covered new conditions are paid subject to your deductible and caps. Anything the insurer classifies as pre-existing is denied, and you are still responsible for those bills.
Match the product to the gap: short-term for short, healthy gaps; ACA for everything longer or anything involving an existing condition.