When Can You Change Medicare Supplement Plans?
You can apply to change a Medicare Supplement policy at any time.
But applying does not guarantee approval. Outside certain protected periods, an insurer may review your health before accepting you.
Here is how to know when you can switch and how to avoid a gap in coverage.
Quick answer
- When: Enrollment protections depend on your situation.
- Health questions: They may apply outside protected periods.
- Before switching: Confirm approval and start dates.
Can I change my Medigap policy whenever I want?
Yes, you may apply for a different policy at any time of year.
Unlike Medicare Advantage and Part D, Medigap has no annual fall switching season that guarantees acceptance.
Outside a protected enrollment period, insurers can generally evaluate your health before accepting you.
A company may accept your application, request additional medical information, or decline it.
Never treat a quote or a preliminary discussion as a binding approval.
Keep your current policy active until the replacement is confirmed.
Why people change Medigap policies
People usually consider switching for one of four reasons:
- Premium increases: The current policy becomes less affordable.
- Discount changes: A household discount ends or a different company offers one.
- Service: The policyholder wants a different insurer.
- Coverage preferences: A different plan letter changes out-of-pocket costs.
For example, someone who has Plan G may want to compare another insurer's Plan G because the standardized benefits are the same.
Someone considering Plan N instead must weigh the lower premium against potential office-visit and emergency-room copayments and the absence of Part B excess-charge coverage.
Switching to High-Deductible Plan G changes the timing and amount of expenses you pay before the policy starts covering eligible cost-sharing.
When is switching protected from medical underwriting?
The federal six-month Medigap Open Enrollment Period begins the first month you are both age 65 or older and enrolled in Medicare Part B.
During this period, companies generally cannot deny an available policy or charge more because of your medical history.
Specific guaranteed-issue rights can apply after qualifying coverage losses, certain Medicare Advantage plan terminations, and qualifying trial rights.
These rights are not universal and may protect only certain plan letters.
Texas also has special rules for people who qualified for Medicare before 65.
Does the October 15 to December 7 enrollment period help?
The fall Medicare Open Enrollment Period allows eligible people to change Medicare Advantage and Part D coverage.
It does not create an annual Medigap guaranteed-issue right.
The Medicare Advantage Open Enrollment Period from January 1 through March 31 also does not, by itself, guarantee Medigap acceptance.
If you are leaving Medicare Advantage, coordinate the switch to Original Medicare with the Medigap application and Part D coverage.
Confirm that you have a right to buy the Medigap policy before making an irreversible change.
How to switch safely: five steps
- Review your policy. Confirm your current plan letter, insurer, monthly premium, and effective date.
- Compare alternatives. Check standardized benefits, premiums, discounts, and rate history.
- Check eligibility. Determine whether medical underwriting or a guaranteed-issue right applies.
- Apply before cancelling. Obtain written acceptance and a confirmed effective date.
- Review your new policy. Use the 30-day free-look period to decide whether to keep it. You may pay premiums on both policies during this time.
What happens if you are declined?
A declined application for a new policy does not automatically cancel the policy you already own.
Most Medigap policies are guaranteed renewable as long as you pay premiums and meet policy requirements.
You can review the insurer's reason, correct inaccurate information, check whether a guaranteed-issue right applies, or compare other insurers' underwriting criteria.
Avoid allowing a coverage gap while investigating alternatives.
Example: a premium increase
Suppose a person with Plan G receives a renewal notice showing a higher premium.
They can request quotes from other companies immediately; there is no need to wait until October.
If they are outside protected enrollment and do not have a qualifying right, the replacement insurer may ask health questions.
If approved, they can coordinate the effective dates.
If declined, they can generally retain the existing policy rather than becoming uninsured.
Frequently asked questions
Can I switch Plan G companies without losing benefits?
The standardized core Plan G benefits are the same across insurers, but premiums, discounts, rate history, and service can differ.
Can I switch from Plan N to Plan G?
You can apply, but medical underwriting may apply outside protected rights.
Does Texas have a Medigap birthday rule?
Texas does not have a general annual birthday switching rule for all Medigap beneficiaries.
Can I change Medigap every October?
You can apply any month, but October does not give you automatic acceptance.
Should I cancel my old policy before applying?
No. Confirm written approval and the new policy's effective date first.
What is the free-look period?
You generally have 30 days to review a new Medigap policy and return it if you decide not to keep it.
Sources and consumer help
See Medicare.gov: Get ready to buy Medigap, Medicare.gov: Change a Medigap policy, and the Texas Department of Insurance Medicare Supplement guide. Texas SHIP offers free counseling at 800-252-9240.
Rules depend on your Medicare eligibility, coverage history, and the qualifying event. Confirm your specific rights and deadlines before changing insurance.
With nearly 15 years of experience in the insurance industry, Matt Kiggins is the Senior Editor at Texas Insurance Guide and a seasoned Health & Life Agent licensed in multiple states, including Texas (#1585860). He is also the co-founder of Policy Guide, a respected insurance agency based in Pensacola, FL. Matt has built his career on one simple principle: people deserve clear, honest guidance when making some of life’s most important healthcare decisions.
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