Montana Health Insurance Guide

Health Insurance Overview in Montana

Montana expanded Medicaid in 2015 and has reauthorized the expansion program multiple times. Montana uses the federal HealthCare.gov marketplace. Montana's rural character means marketplace insurer options are limited in many counties — some rural counties have only one carrier. The state has worked to maintain insurer participation in rural markets.

Average Health Insurance Costs in Montana

Health insurance premiums in Montana vary significantly based on age, plan type (Bronze, Silver, Gold, Platinum), insurer, and income-based subsidies. The figures below represent estimated 2026 benchmark premiums before ACA subsidies for a 40-year-old individual and family of four.

Coverage Type	Monthly Premium	Annual Premium
Individual (benchmark Silver)	$455/mo	$5460/yr
Family of Four (benchmark Silver)	$1,302/mo	$15624/yr
Avg. Annual Deductible	$4,800

Premiums shown are before ACA subsidies. Most marketplace enrollees receive premium tax credits that significantly reduce these costs. Use our Health Insurance Calculator to estimate your net premium after subsidies.

Marketplace Enrollment in Montana

Montana residents can enroll in individual and family health insurance plans through HealthCare.gov (Federal). Open enrollment runs November 1 – January 15 (federal marketplace). Outside of open enrollment, a qualifying life event (job loss, marriage, birth of a child, move to a new state) triggers a Special Enrollment Period during which you can enroll or change plans.

Average Premiums by City in Montana

Health insurance premiums vary by location within Montana, reflecting local healthcare costs, provider availability, and insurer competition. The following estimated monthly individual premiums are based on a benchmark Silver plan for a 40-year-old non-smoker.

City	Est. Monthly Premium (Silver, age 40)
Billings	$465/mo
Missoula	$458/mo
Great Falls	$448/mo
Bozeman	$462/mo
Helena	$452/mo
Kalispell	$458/mo

Medicaid in Montana

Montana Medicaid expanded in 2015, covering adults with incomes up to 138% of the federal poverty level. The program has been periodically reauthorized.

Children's Health Insurance (CHIP) in Montana

Healthy Montana Kids covers children under 19 in families with incomes up to 261% of the federal poverty level.

What Makes Montana Unique

Montana's HELP Act (Health and Economic Livelihood Partnership) — the initial Medicaid expansion vehicle — included unique work requirements and was time-limited, requiring periodic reauthorization. Montana's approach to structuring and reauthorizing its expansion has been distinctive among expansion states.

ACA Subsidies: What Montana Residents Should Know

Premium tax credits (subsidies) are available for Montana residents who purchase coverage through the marketplace and have incomes between 100% and 400% of the federal poverty level (or higher in states with additional state subsidies). The subsidy amount is based on the cost of the benchmark Silver plan in your area and your income. For 2026, the enhanced subsidies first enacted in the American Rescue Plan have been extended, providing more substantial assistance across a broader income range than before.

Cost-sharing reductions (CSRs) provide additional savings on deductibles and copays for those who enroll in Silver plans with incomes between 100-250% of the federal poverty level. Silver plans with CSRs often provide Gold or Platinum-level value at Silver premiums, making them the best value for eligible enrollees.

Tips for Choosing Health Insurance in Montana

Rural Montana residents may have limited marketplace plan options — comparing all available plans is critical. Montana Medicaid covers low-income adults. Healthy Montana Kids provides coverage for children. ACA subsidies are available for incomes 100-400% of the federal poverty level. Telehealth options are particularly valuable for rural Montanans.

• Enroll during open enrollment (November 1 – January 15 (federal marketplace)) — missing the deadline means waiting until the next open enrollment unless you have a qualifying life event.
• Check both Medicaid eligibility and marketplace subsidy eligibility — your income determines which program you qualify for.
• Don't just compare premiums — also compare deductibles, out-of-pocket maximums, and whether your doctors are in-network.
• Silver plans with cost-sharing reductions (for incomes 100-250% FPL) typically offer the best overall value despite higher premiums than Bronze plans.
• Use our Health Insurance Calculator to estimate your total annual cost (premium + expected out-of-pocket) for different plan options.

The information on this page is provided for general informational purposes only and reflects estimated industry averages and program eligibility rules as of 2026. Health insurance premiums, Medicaid eligibility thresholds, marketplace options, and program rules change annually. Always verify current eligibility and enrollment options at the official HealthCare.gov (Federal) or by contacting a certified navigator or broker. Premium figures shown are approximations before subsidies — actual net premiums depend on individual income, household size, and plan selection.