Medicare's Trial Right: Your Safety Net for Plan Changes

If you currently hold a Medigap policy — Medicare's supplemental coverage that pays what Original Medicare doesn't — you have a federal right to temporarily switch to a Medicare Advantage plan without permanently forfeiting your safety net. The protection is called the Trial Right period, and it gives you a 12-month window to try out Medicare Advantage and switch back to your Medigap policy with no health questions asked (Senior65). That matters because many people wrongly believe once they leave Medigap for Advantage, they're locked in for good and can be denied coverage or charged more based on their health when they try to return.

What is the Trial Right period?

The Trial Right period is a federal consumer protection that lets you "try out" a Medicare Advantage plan for up to 12 months and reverse the decision without penalty (Brevy Care). If you leave the plan within that first year, you earn a guaranteed-issue right to buy a Medigap policy — supplemental insurance that picks up the costs Original Medicare doesn't cover, like coinsurance and deductibles — at standard rates with no medical underwriting. That's the protection that matters most: normally, switching to Medigap outside your initial enrollment window means an insurer can deny you coverage or charge more because of your health (Kiplinger). The Trial Right removes that fear, which is exactly the point: it exists so you can test Advantage knowing you won't be stuck if it doesn't fit your care needs.

What are the two Trial Rights?

Federal law gives you two separate 12-month trial rights, each tied to how you first came to be in a Medicare Advantage plan (Brevy Care).

Trial Right 1 applies if you joined a Medicare Advantage plan — or a PACE program — when you first became eligible for Medicare Part A at 65, and you've never had a Medigap policy. Within that first 12 months, you have a guaranteed-issue right to buy any Medigap policy sold by an insurer in your state, which reaches the full range of lettered plans like G, N, K, and L (Senior65).

Trial Right 2 covers someone who dropped a Medigap policy to join a Medicare Advantage plan for the first time. If you decide within a year that Advantage isn't working, you have a guaranteed-issue right to buy back the exact same Medigap policy you had before — provided the same insurance company still sells it. If it no longer does, you fall back on a guaranteed-issue list of plans like A, B, G, D, and K instead (Senior65).

How long do you have to act?

The 12-month trial clock starts the day your Medicare Advantage coverage begins — not the day you decide to leave (Senior65). And the guaranteed-issue protection only holds inside a narrow application window: you can apply for Medigap as early as 60 days before your Advantage coverage ends, but no later than 63 days after it ends (Brevy Care).

Miss that 63-day window and you lose the guaranteed-issue right — even if you're still technically inside your 12-month trial. At that point, insurers can medically underwrite you, charge a higher premium for a pre-existing condition, or refuse you coverage entirely. That's why the practical advice is simple: if you decide Medicare Advantage isn't working, don't wait to start the switch (Senior65).