Reviewed by Russell Noga, Licensed Medicare Insurance Broker (all 50 states) — Last updated November 6, 2026
Yes, you can switch Medicare Supplement plans at any time of year, either to a different letter or to the same letter at another insurance company, as long as the new insurer approves your application. Outside your Medigap Open Enrollment Period or a guaranteed issue right, most insurers ask health questions and may decline you, so the old policy should stay in force until the new one is approved and active.
2027 by the Numbers
30 days
free look period on a replacement Medigap policy (Medicare.gov)
6 months
longest wait an insurer may impose for new benefits or a pre-existing condition after a switch (Medicare.gov)
$292
projected 2027 Part B deductible, the key number in a Plan F to Plan G switch (Medicare Trustees)
No federal rule locks a Medigap member into one policy, and there is no annual switching season for supplements. The fall Medicare enrollment period that runs October 15 to December 7, 2026 is built for Medicare Advantage and Part D, and it gives Medigap members no special right to change.
What decides a switch is the new company’s approval. This page covers the mechanics: what the application asks, how the replacement form and free look work, and the order of steps that avoids a gap. Timing rules and state birthday windows are covered on our page about when you can change Medicare Supplement plans.
✔ Based on CMS 2027 data
✔ Free plan comparison
