OEP 2027 · Montana
ACA marketplace plans in Montana
Carriers, Open Enrollment dates, Medicaid expansion status, CHIP eligibility, and signup history for Montana. Data last updated 2026-06-08.
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Open Enrollment window
For plan year 2027, residents of Montana can enroll in marketplace coverage from November 1, 2026 through December 15, 2026 at www.healthcare.gov.
Missed Open Enrollment? You may qualify for a Special Enrollment Period after a qualifying life event such as losing other coverage, marriage, or a household income change.
Deep dive into Montana
Montana ACA subsidies & income limits
2026 FPL tables and premium tax credit eligibility.
Montana Open Enrollment dates
Exact OEP dates, deadlines, and SEP rules.
Montana Medicaid & CHIP
Expansion status, CHIP income limits, how to apply.
All Montana counties
County-by-county ACA marketplace pages.
Carriers in Montana for OEP 2027
Carrier lists shown below are current marketplace participants and a strong indicator of who will offer plans in Montana for 2027. Final OEP 2027 filings are confirmed in summer 2026.
- Blue Cross and Blue Shield of Montana
- Mountain Health CO-OP
- PacificSource Health Plans
CHIP & Medicaid for kids and pregnant women
Healthy Montana Kids covers children in households up to 261% of the Federal Poverty Leveli. Pregnancy Medicaid coverage extends to 162% FPLi.
Enroll or check eligibility at dphhs.mt.gov/hmk · 1-877-543-7669.
See the full state-by-state CHIP table for context.
Recent signup history
| Plan year | Plan selections in Montana |
|---|---|
| 2022 | 53,661 |
| 2023 | 55,878 |
| 2024 | 67,050 |
| 2025 | 77,221 |
Source: CMS OEP State-Level Public Use File.
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Sources
The information contained on this website is for educational purposes only. We are not responsible for missing or inaccurate information. Please consult a licensed insurance broker in your state and area for insurance advice. Please consult a CPA for tax or legal advice.