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How to Switch Health Insurance Plans in Michigan (2027 Timing Guide)
You can switch health plans, but when you can do it depends on what kind of plan you're moving to. Get the timing right and you avoid both a coverage gap and paying for two plans at once.
Switching marketplace plans: open enrollment
In Michigan, open enrollment for 2027 coverage runs on HealthCare.gov from November 1, 2026 to January 15, 2027. Pick a plan by December 15, 2026 if you want coverage to start January 1, 2027; plans picked after that start later.
If you're already enrolled, you'll usually be auto-renewed into the same or a similar plan. Don't let that happen by default. 2027 premiums, networks and carriers changed a lot.
Switching mid-year: special enrollment
Outside open enrollment, you need a qualifying life event, and you generally have 60 days to act:
- Losing other coverage (a job, Medicaid, a parent's plan at 26)
- Getting married, having or adopting a baby
- Moving to a new ZIP code or county with different plans
- Gaining citizenship or lawful presence
Note for 2027: the low-income special enrollment period that let people under 150% of the poverty level enroll any month is effectively gone. Under the 2025 budget law, people who enroll through an income-based special enrollment no longer get a tax credit. Medicaid still enrolls year-round.
Switching to or from a private plan
Private underwritten plans accept applications any month, with coverage usually starting the 1st of the next month. Outside the marketplace, private shared-network plans are sold in Michigan on leased PPO networks (Cigna, Aetna and PHCS PPO). They're medically underwritten, so they ask health questions and price on age and health instead of income, but you can enroll any month and coverage starts on the 1st.
- Moving to a private plan: get approved first, then cancel your old plan effective the day before the new one starts.
- Moving from a private plan to the marketplace: voluntarily dropping a private plan usually isn't a qualifying event, so plan the move for open enrollment.
Switching from an employer plan
You can generally change employer plans only at your company's open enrollment or after a life event. Leaving a job triggers marketplace special enrollment. See what happens to your insurance when you lose your job.
Before you switch, check:
- Your deductible and out-of-pocket progress resets with a new plan.
- Prior authorizations may need to be redone.
- Your doctors and drugs are covered on the new plan.
Not sure if now is the time? What open enrollment means covers the calendar. Or check your options and we'll plan the switch with you.
Frequently asked questions
Can I switch health insurance plans anytime?
Not on the marketplace. You can switch during open enrollment or within 60 days of a qualifying life event. Private underwritten plans accept applications any month.
Does my deductible reset if I switch plans?
Usually yes. A new plan starts your deductible and out-of-pocket maximum over at zero.
How do I avoid a gap when switching?
Get the new plan approved first, then cancel the old one effective the day before the new plan starts.