Medicare 2026

Turning 65 With Medicare You Already Have: What Resets, What Carries Over

If you came to Medicare before age 65 because of a disability, your 65th birthday is a bigger milestone than it may look. Your coverage doesn't stop, but several clocks reset — and some of those resets can open doors that weren't open before. Here's a plain-English walk-through of what changes, what stays the same, and the choices worth thinking about in the months around your birthday.

Your coverage doesn't stop

First, the reassurance: there's no coverage gap. Medicare based on disability ends with the month before the month you turn 65, and Medicare based on age takes effect immediately. You don't need to reapply for Part A and Part B — they continue. What changes is the set of rules and windows that now apply to you as someone with age-based Medicare.

A new Initial Enrollment Period, no matter what came before

Every person eligible for Medicare at 65 gets a new Initial Enrollment Period (IEP). It doesn't matter how long you've had Medicare already or under what circumstances. This IEP is a 7-month window: the 3 months before the month you turn 65, the month you turn 65, and the 3 months after.

During this window, you can join, switch, or drop a Medicare Advantage plan or a Medicare drug plan. It's a natural time to re-evaluate the coverage you've been using, because the plans you were eligible for under 65 may not be the same mix you'd pick today.

The Part B late-enrollment penalty stops at 65

If you paid a Part B late-enrollment surcharge during your disability-based coverage, here's welcome news: months before your new age-65 IEP do not count against you. The surcharge you were paying has no effect on premiums during your new enrollment. Medicare.gov puts it plainly — a person with Medicare due to disability who signed up late for Part B may pay a monthly penalty "until you turn 65." After that, the slate is clean.

Medigap: a one-time window opens

Medigap (Medicare Supplement) rules are where turning 65 matters the most for many people. The 6-month Medigap Open Enrollment Period starts the first month you both have Medicare Part B and are 65 or older. It's one-time — it doesn't come back around every year.

Even if you've had Part B for years because of your disability, you still get this window at 65. During it, insurance companies cannot refuse to sell you any Medigap policy they offer because of a disability or other health problem, and they can't charge you a higher premium based on your health than they charge other 65-year-olds. Outside this window, in most of the country, medical underwriting can apply — so it's a window worth paying attention to.

There's another helpful piece: because Part A and Part B count as creditable coverage, if you've had Medicare for more than 6 months before turning 65, you may not face a Medigap pre-existing condition waiting period. Ask the insurer to confirm as you shop.

(Availability, pricing, and which specific Medigap plans are sold vary; we're not recommending any particular policy here.)

Medicare Advantage vs. Original Medicare + Medigap: a fair look

Your IEP at 65 is a good moment to compare paths. Neither is "better" in the abstract — they're structured differently.

• Original Medicare plus a stand-alone Part D plan, often with a Medigap: predictable cost-sharing once Medigap is in place, broad access to any provider who accepts Medicare, and drug coverage chosen separately. Monthly premiums typically include Part B, the Medigap policy, and the Part D plan.
• Medicare Advantage: bundles hospital, medical, and usually drug coverage through a private plan, often with network and referral rules, and may include extras. Out-of-pocket costs work differently than with Medigap, and networks vary.

The right fit depends on your doctors, your prescriptions, how you use care, and your budget. Compare plans available where you live at Medicare.gov.

Part D in 2027: what's set nationally

A few program-level numbers are confirmed for 2027:

• The Part D out-of-pocket cap is $2,400 (up from $2,100 in 2026).
• The most any Part D plan may charge as a deductible is $700.
• The Part D base beneficiary premium — the national figure used to calculate the late-enrollment penalty — is $41.33. Actual plan premiums are set plan by plan.
• Annual Enrollment runs October 15 – December 7, 2026, with choices taking effect January 1, 2027.
• Social Security announced a 3.6% COLA for benefits payable beginning January 2027.

The 2027 standard Part B premium and deductible, and the 2027 IRMAA income brackets, had not been announced at the time of writing. CMS typically announces them in the fall, usually November — watch Medicare.gov.

If you have Medicaid or Extra Help

Since 2025, people with Medicaid or Extra Help have a monthly Special Enrollment Period to move to Original Medicare with a stand-alone Part D plan, or to switch stand-alone Part D plans. Full-benefit dual-eligible individuals can join an integrated D-SNP in any month. This flexibility continues after you turn 65.

A simple game plan around your birthday

• Mark your 7-month IEP on the calendar and use it to re-evaluate.
• If you're considering Medigap, protect your one-time 6-month window at 65.
• Compare Original Medicare + Part D (with or without Medigap) against Medicare Advantage based on your own doctors, drugs, and budget.
• For plan details and to confirm anything specific to where you live, go to Medicare.gov or call 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048.

Turning 65 is a reset, not a restart. The coverage keeps flowing — and the new windows give you a fresh chance to build the mix that fits the next chapter.