Cancel a new Medicare Supplement policy within 30 days of receiving it, and federal guidance says the buyer gets back the full premium paid, no penalty attached. Medicare.gov calls this the free-look period, and it exists because Medigap buyers who switch companies are often exposed to new medical underwriting the moment they drop their old policy. The mechanic protects the undecided, but only if the buyer keeps both policies active until the second one is confirmed, since letting the first lapse too soon can leave a gap that guaranteed-issue rights never fully close.
A 30-day right built into the Medigap switch
Medicare’s own consumer guidance spells out the mechanic directly: buy a Medigap policy during the six-month Medigap Open Enrollment Period, decide the coverage is not the right fit, and the beneficiary can switch to a different Medigap policy sold by any insurer in the state. Once the new policy arrives, the buyer has 30 days to decide whether to keep it, a window that runs from delivery of the policy paperwork rather than from the date of application or the first premium payment.
That 30-day free look is the one formal grace period Medicare guarantees on a Medigap purchase, and it is narrower than it sounds. It does not create an open-ended right to shop Medigap policies at any time; it only activates once a buyer has already purchased a new policy to replace an existing one. Someone outside the enrollment window or a guaranteed-issue situation has no federal right to buy a Medigap policy in the first place, so the free look has nothing to attach to unless that purchase happens on schedule.
Miss the 30-day window and the calculus changes completely. Medicare’s guidance is direct about what comes next: dropping a Medigap policy after the free look has closed simply means canceling it through the insurance company, with no promise of getting that policy, or any other Medigap policy, back later if circumstances change. The free look is the one moment in the entire Medigap relationship where undoing the purchase costs nothing.
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Why the overlap month catches buyers off guard
Medicare’s guidance is explicit on a point that catches new switchers off guard: canceling the old Medigap policy too early defeats the purpose of the free look entirely. The instruction is to keep the original policy in force until the buyer has decided to keep the replacement, which means paying two Medigap premiums during whatever month the two coverages overlap. Skipping that step to save one month’s premium can leave a beneficiary inside a free-look window with no fallback coverage if the new insurer’s paperwork, network, or benefit design turns out worse than advertised.
That overlap month is also the only real-world test of a policy before commitment becomes permanent. A rate quote or a printed benefits chart cannot show whether a specific doctor accepts the new plan’s assignment terms or whether a recent prescription gets billed the way an agent described it. Beneficiaries who use the full 30 days to file a real claim, or confirm coverage directly with a current provider, walk away with a far more complete picture than paperwork alone provides before the window closes for good.
The clock discipline extends beyond the free look itself. Guaranteed-issue applicants must apply for a new Medigap policy no more than 63 days after their old coverage ends, and Medicare’s guidance recommends keeping copies of termination letters, notices, or claim denials as proof that the old coverage actually ended. A buyer who lets the free-look period run past 30 days without deciding, or who cancels the original policy before the replacement is locked in, can end up outside both protections at once: no refund right on the new policy, and no guaranteed path back to the old one.
The narrow window that unlocks the guarantee
Outside the six-month Medigap Open Enrollment Period, or a small set of federally protected guaranteed-issue situations, insurers are not required to sell a Medigap policy at all, let alone honor a free look on one. That enrollment period begins the first day of the month a person turns 65 or older and is enrolled in Medicare Part B, and it does not reset or extend once it closes. A beneficiary who waits and later wants to switch companies can face medical underwriting, higher premiums, or an outright denial, with no free-look protection standing behind the decision.
Guaranteed-issue rights outside that enrollment period are narrow and specific rather than a general safety net. They cover situations such as a Medicare Advantage plan leaving Medicare or exiting a beneficiary’s coverage area, losing Medigap coverage through no fault of the policyholder — an insurer going bankrupt or misleading a customer — or losing other health coverage altogether. Each trigger still requires meeting the 63-day application window, and each one, once satisfied, restarts the same 30-day free look on whatever new policy follows.
Medicare’s own guidance repeatedly sends beneficiaries back to their State Insurance Department for anything beyond this federal floor, an acknowledgment that some states extend stronger switching and free-look protections than federal law requires while others do not. That leaves the 30-day guarantee as a baseline rather than a ceiling, and which side of that line a given retiree lands on depends less on Medicare’s national rules than on where the policy happens to be written.
This article was drafted with the assistance of AI tools and reviewed for accuracy against primary sources before publication.
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