Can I Change My ACA Plan Midyear in Idaho? (Special Enrollment Rules Explained)

Chris Antrim, CLTC - Boise Health & Life Agency • October 19, 2025

Understanding Special Enrollment Periods (SEPs)

Outside the October–December open enrollment window, you can change ACA plans only if you experience a qualifying life event. Idaho follows federal SEP guidelines but runs them through Your Health Idaho.


Common Qualifying Events

  1. Loss of coverage: employer, COBRA, Medicaid, or a parent’s plan.
  2. Move to a new ZIP code or county: including moving to Boise.
  3. Marriage, divorce, or birth/adoption.
  4. Income change affecting subsidy eligibility.
  5. Loss of dependent or change in household size.
  6. Gaining legal residency or citizenship.


You typically have 60 days from the event date to apply for new coverage.


Proof You’ll Need

Your Health Idaho requires documents such as:

  • Termination letter or COBRA notice.
health insurance enrollment boise
  • Lease or utility bill for a move.
  • Marriage or birth certificate.
  • Income change documentation (pay stub or tax form).


We’ll upload everything correctly to avoid rejections.


Example: Boise Move

If you move from Twin Falls to Boise, your provider network likely changes (e.g., St. Luke’s vs St. Alphonsus). You must report the move and select a new plan within 60 days.


Example: Employer Coverage Ends

If you lose group coverage in June, you have until August 1 to choose a new ACA plan. Coverage can start as soon as the first of the following month.


What You Can Do During a SEP

  • Switch plans or carriers.
  • Add or remove household members.
  • Recalculate your subsidy if your income changed.


Common SEP Mistakes

  • Waiting too long — the 60-day window is strict.
  • Forgetting documentation uploads — no proof = no coverage.
  • Assuming “any life change” qualifies — only listed events count.


Boise Tip

Keep a digital folder with your proof documents, RX list, and doctor names. When a life event happens, text or email them immediately to our office so we can submit your SEP before the window closes.


Had a life change and need to switch plans? Text 425-761-0555 or visit Special Enrollment Help Idaho for a free review and submission.


FAQs

  • Can I switch for any reason midyear?
  • No, only with a qualifying event.
  • What if I miss the 60 days?
  • You must wait for open enrollment.
  • Does marriage always qualify?
  • Yes, if one spouse already had coverage.
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