Short-Term Health Insurance in Montana: 2027 Rules
A short-term health plan in Montana is a temporary policy meant to fill a gap of weeks or a few months, not a full replacement for major medical coverage. It can exclude pre-existing conditions, cap what it pays and decline applicants, and Montana adds its own rules on top of the federal limits. With Montana Marketplace premiums rising 22.6% to 23.3% on average for 2027, more people are looking at short-term plans, so it pays to know what they leave out. I don't sell short-term plans; this page explains how they work in Montana and the year-round options I do offer.
Private health insurance in Montana
Most people I help in Montana end up on a private plan, not a Marketplace plan. Private, medically underwritten health insurance is priced on your age, zip code and health instead of your income, so a strong year never raises your premium and there is no tax credit to pay back in April.
Why people leave the Marketplace
- Premiums keep climbing. Montana Marketplace premiums are rising 22.6% to 23.3% on average for 2027.
- The subsidy cliff. Above 400 percent of the poverty level ($63,840 for one person, $132,000 for a family of four) you pay full price.
- Surprise tax bills. Underestimate your income and you repay the tax credit in April.
- Narrow networks. Many plans are local HMOs or EPOs that need referrals and cover little outside the area.
- High out-of-pocket costs. 2027 out-of-pocket maximums reach $12,000 per person and $24,000 per family.
- One window a year. Outside open enrollment you need a qualifying life event to enroll or switch.
What a private plan does differently
- Start any month. If approved, coverage can begin the first of next month, with no wait for open enrollment.
- Networks that travel. Many private plans use national PPO networks, which can give you in-network doctors outside Montana too. Networks vary by plan.
- Can cost less than full-price Marketplace plans for some healthy applicants above the subsidy line.
- Accident coverage the Marketplace does not offer. A private plan can be paired with accident coverage, a separate policy. What it includes varies by plan.
- Approval is based on health. You answer health questions, and acceptance is not guaranteed.
With a significant health condition, or income low enough for a large tax credit, a Marketplace plan can be the better fit, and I will tell you if it is. Either way you see both side by side.
Private plans are not ACA Marketplace plans. Benefits, exclusions and pre-existing condition rules differ by plan and by state, so review the plan details before you enroll.
Get a private plan quoteLearn more: coverage not based on income · how underwriting works · private vs Obamacare · PPO plans for individuals · switching from the Marketplace
Short-term plan rules in Montana
Montana has no statute or rule of its own on short-term plan length, so federal limits apply. Oversight sits with the Commissioner of Securities and Insurance, part of the Montana State Auditor's office, which issued an advisory memorandum in June 2024 explaining the federal rule that set a three-month initial term and four-month maximum. In August 2025 the federal departments said they would not prioritize enforcing those limits pending new rulemaking, which had not appeared as of late 2026. Insurers in Montana have long capped terms at six months, and trackers found nothing longer here in early 2026, with at least three insurers active. Pre-existing conditions are normally excluded. The commissioner's office has acted before against misleading sales of limited plans, including a 2016 case that led to refunds.
When a short-term plan fits in Montana, and what to use instead
Montana's seasonal economy, with ranch hands, national park summer staff, and ski-area crews, creates gaps of a few weeks to a few months, and short-term coverage is built for exactly that. It won't pay for prior conditions, doesn't meet ACA standards, and no subsidy applies, so a mid-season injury tied to an old problem could be denied. Montanans use HealthCare.gov, and when job-based coverage ends they have 60 days to enroll under a special enrollment period. Someone who wants coverage that outlasts the season can apply for a year-round medically underwritten private plan; if approved, it can begin on the first day of a month.
The Montana individual market
Montana buyers use HealthCare.gov, and open enrollment for 2027 coverage runs November 1, 2026 to January 15, 2027, with coverage starting January 1 for plans picked by December 15. Montana runs a state reinsurance program under a federal waiver approved for 2025 through 2029, which reimburses insurers for some high-cost claims and is designed to keep individual premiums lower than they would otherwise be. Montana has no general continuation law for small employers, so a tradesperson leaving a shop too small for federal COBRA usually needs new coverage right away; losing job-based coverage opens a special enrollment period on the Marketplace. Montana sets no short-term duration limit of its own, so federal rules apply, and short-term plans are not ACA coverage. Because Montana's building season is short, self-employed tradespeople should base their Marketplace income estimate on the full year, not a busy summer month.
Other Montana rules to know
- Leaving a small employer: Montana has no general continuation law for people who leave a small employer; its law only lets a worker whose hours drop below the plan's minimum keep group coverage for up to one year, with the employer's consent and at the group rate.
- Short-term plans: Montana does not limit the duration of short-term plans in its own law, so federal rules govern, and federal agencies are not prioritizing enforcement of the four-month federal limit.
- Where to enroll: Montana uses HealthCare.gov. Open enrollment for 2027 coverage runs November 1, 2026 to January 15, 2027. Private, medically underwritten plans can start the first of any month if approved.
- 2027 rates: individual plans 22.6% to 23.3% on average, small-group plans about 18%. See the Montana 2027 rate page.
What a short-term plan is
Short-term limited-duration insurance is temporary coverage outside the ACA rules. It can ask health questions, turn applicants down, exclude conditions you already have and leave out benefits such as maternity care, mental health care or prescriptions. It is not Marketplace coverage, so no subsidy applies to it.
Why the time limit matters
A 2024 federal rule caps short-term plans at three months, or four with renewals. In August 2025 federal regulators said they would not prioritize enforcing that cap, so the real limit now depends on your state, from a few months to as long as three years. However long it lasts, when the plan ends you are not guaranteed a new one, and losing a short-term plan does not open a Marketplace enrollment window.
The two options that last all year
A Marketplace plan accepts everyone during open enrollment or within 60 days of losing other coverage. A medically underwritten private plan is year-round coverage priced on age, ZIP code and health; it is not a Marketplace plan, approval depends on your health answers, benefits vary by plan, and if approved it can start the first of a month. For most people who need more than a short bridge, one of these two is the better fit.
For 2027 the Marketplace credit stops at 400 percent of the poverty level: $63,840 for one person, $86,560 for two and $132,000 for a family of four. The out-of-pocket maximum for 2027 Marketplace plans is $12,000 for one person and $24,000 for a family. The full guide covers the rest.
Compare Montana plans
Licensed in Montana. Private plans priced first, Marketplace alongside when it fits. No fee.
Montana questions
Where do Montana residents enroll in 2027 coverage?
Montana uses HealthCare.gov. Open enrollment for 2027 coverage runs November 1, 2026 to January 15, 2027.
What continuation rights does Montana give after leaving a small employer?
Montana has no general continuation law for people who leave a small employer; its law only lets a worker whose hours drop below the plan's minimum keep group coverage for up to one year, with the employer's consent and at the group rate.
How much are Montana premiums rising for 2027?
Individual-market premiums are set to rise 22.6% to 23.3% on average, and small-group plans about 18%.
Is a short-term plan cheaper than a Marketplace plan?
The premium often is, but the plan covers less, can exclude pre-existing conditions and ends after a few months. Compare it with what you would actually pay for care under each option.
Can I get a short-term plan after open enrollment ends?
Where your state allows them, yes, but they are temporary. A year-round private plan can also be applied for in any month and, if approved, can start the first of a month.
Sources: csimt.gov, www.healthinsurance.org, www.cms.gov. Facts checked October 2026. See all Montana health insurance rules.
Short-term plans in other states
Written by Frank Caballero, licensed health insurance agent in Montana and 30 other states, NPN 21032307.