Turning 65 in 2027: How to Get Medicare Without Claiming Social Security — and the Penalty Traps to Avoid

If you were born in 1962, you turn 65 in 2027 — and Medicare is coming whether you are ready or not. Here is the fact that surprises most people in this position: you can sign up for Medicare without claiming Social Security, and for many people that is exactly the right move. Your full retirement age is 67, so claiming Social Security at 65 would permanently shrink your monthly benefit. Medicare and Social Security are run by different clocks, and you are allowed to start one without the other.

But there is a catch that catches thousands of people every year. If you are already collecting Social Security when you turn 65, Medicare enrolls you automatically. If you are not — because you are still working, or because you are deliberately waiting until 67 or 70 to claim — nobody signs you up. You have to do it yourself, inside a seven-month window, or you pay a penalty that follows you for the rest of your life.

This guide gives you the dates, the dollar amounts, and the traps, in plain English.

Checked against primary sources (Medicare.gov and SSA.gov) on November 8, 2026.

The Short Answer

Question	Answer
Can I get Medicare at 65 without claiming Social Security?	Yes. Apply for Medicare only, through the Social Security Administration.
When can I sign up?	Your Initial Enrollment Period: the 3 months before your birthday month, your birthday month, and the 3 months after.
What if I do nothing?	Part A (hospital) is usually automatic and free. Part B (medical) is not — you must sign up, or face a permanent penalty.
What does delaying Social Security cost me?	Nothing on the Medicare side. Delaying Social Security to 67 or 70 increases your benefit; it does not delay Medicare.
What is the 2027 Part B premium?	Not yet final. The 2026 Medicare Trustees Report projects about $209.50 a month, up from $202.90 in 2026. CMS announces the final figure in November.

Your 7-Month Window: The Initial Enrollment Period

Medicare gives you seven months to sign up for the first time. The window is called your Initial Enrollment Period, and it is built around your 65th birthday month:

• 3 months before the month you turn 65
• Your birthday month
• 3 months after the month you turn 65

Sign up inside that window and no late penalty applies. Sign up early in the window and your coverage starts on the first day of the month you turn 65 — no gap. Sign up in your birthday month or later, and coverage starts the first day of the month after you sign up, which can leave you briefly uncovered.

One quirk worth knowing: if your birthday falls on the 1st of a month, the whole window shifts one month earlier, and your coverage can start on the 1st of the month before you turn 65. Medicare counts you as 65 on the last day of the previous month in that case.

Month-by-Month Timeline: A Worked Example

Take someone born June 14, 1962. They turn 65 in June 2027. Here is their calendar:

Month	What happens
March 2027	Enrollment window opens. You can apply now.
April 2027	Apply in March, April or May and coverage starts June 1, 2027.
May 2027	Last month to apply and still start coverage on June 1.
June 2027	Birthday month. Apply now and coverage starts July 1.
July 2027	Apply now and coverage starts August 1.
August 2027	Apply now and coverage starts September 1.
September 2027	Last month of the window. Apply now and coverage starts October 1.
October 2027	Window closed. Now you generally wait for the General Enrollment Period (January 1–March 31) — and the late penalty clock is running.

The practical advice is simple: apply in the first three months of your window. For a June birthday, that means March, April or May 2027. You get coverage from the first day of your birthday month, with no gap and no penalty, and the paperwork is done months before anything is urgent.

Medicare Without Social Security: How It Actually Works

This is where the confusion lives, so here it is step by step.

If you are already receiving Social Security benefits when you turn 65, the Social Security Administration enrolls you in Medicare Part A and Part B automatically. Your red, white and blue Medicare card arrives in the mail about three months before your 65th birthday, and coverage starts on the first day of your birthday month. You do nothing.

If you are not receiving Social Security benefits when you turn 65, the picture is different:

• Part A (hospital insurance) is still automatic for most people. If you qualify for premium-free Part A — generally, you or your spouse paid Medicare taxes for at least 10 years — you will still receive a Medicare card showing Part A only. There is no premium for Part A, so there is nothing to decide.
• Part B (medical insurance) is not automatic. Medicare does not assume you want Part B if you are not collecting Social Security. You must sign up for it yourself, during your Initial Enrollment Period.

You can apply for Medicare only — without touching your Social Security claim — in three ways:

1. Online at ssa.gov/medicare, through the Social Security Administration’s Medicare application.
2. By phone at 1-800-772-1213 (TTY 1-800-325-0778).
3. In person at your local Social Security office.

Apply two to three months before you want coverage to start. The application asks whether you want Part A only, or Parts A and B. If you are delaying Social Security, choose both — and say clearly that you are applying for Medicare only, not for retirement benefits. Your Social Security claiming date stays yours to choose later: 67 for your full benefit, or up to 70 for the largest monthly check. Our guide to full retirement age in 2027 explains the trade-off in detail.

The Three Penalties, With Real Dollar Amounts

Missing your window is not a paperwork problem. It is a money problem, and for Part B and Part D the surcharge is permanent. Here is the full picture:

Part	What triggers it	How much	How long you pay
Part A (hospital)	Signing up late, and only if you have to pay a Part A premium	10% added to the Part A premium	Twice the number of years you waited
Part B (medical)	Each full 12 months without Part B or qualifying job-based coverage	10% of the standard premium per 12 months	As long as you have Part B — for life
Part D (drugs)	63 days or more in a row without Part D or other creditable drug coverage	1% of the national base premium per month without coverage	As long as you have drug coverage — for life

Worked example: the Part B penalty

The 2027 Part B premium is not final yet — the Trustees project about $209.50 a month (up from $202.90 in 2026). Using that projection, here is what delay costs:

• Wait 1 year: 10% penalty = $20.95 extra a month. You pay about $230.45 a month instead of $209.50 — roughly $251 extra a year, every year.
• Wait 2 years: 20% penalty = $41.90 extra a month. You pay about $251.40 a month — roughly $503 extra a year, every year.
• Wait 3 years: 30% penalty = $62.85 extra a month. You pay about $272.35 a month — roughly $754 extra a year, every year.

Over a 20-year retirement, a two-year delay costs roughly $10,000 in extra premiums — for coverage you could have had at the standard price. And the penalty is calculated on the standard premium, so it grows every time the premium rises.

Worked example: the Part D penalty

The Part D penalty is smaller per month but just as permanent. It is 1% of the national base beneficiary premium for every month you went without creditable drug coverage. As an illustration: if the national base premium were $37, a 12-month delay adds about $4.40 a month to your drug-plan premium — around $53 a year — for as long as you have Part D. The amount looks small; the fact that it never goes away is the point.

The Part A penalty rarely applies, because most people get Part A premium-free. It matters only if you have fewer than 40 quarters (10 years) of Medicare-covered work and have to buy Part A — in 2026 the full premium is $518 a month, so a 10% surcharge is about $52 extra a month, paid for twice as many years as you delayed.

Still Working at 65? The Rules Change

If you are still working at 65 and covered by a group health plan through your own or your spouse’s current employment, you can usually delay Part B without penalty. The details matter:

• Employer with 20 or more employees: the group plan pays first, and you can delay Part B. When the job or the coverage ends, you get an 8-month Special Enrollment Period to sign up for Part B with no penalty. The 8 months run from whichever ends first — the employment or the coverage.
• Employer with fewer than 20 employees: Medicare usually pays first, and you generally need Part B at 65 even while working. Check with your benefits office — this is the single most common mistake working 65-year-olds make.
• You still need to sign up for premium-free Part A at 65 in most cases, even while working. Part A is free and it is your backup hospital coverage. One exception: if you contribute to a Health Savings Account (HSA), enrolling in any part of Medicare — including premium-free Part A — ends your ability to contribute to the HSA. If you have an HSA and want to keep funding it, get advice before signing up for Part A.

To use the Special Enrollment Period later, you will need proof of the employer coverage: forms CMS-40B (the Part B application) and CMS-L564 (the employer verification form, with Section B completed by your employer). Keep them with your records when you leave the job.

The COBRA Trap

This is the trap that costs people the most, because COBRA feels like real coverage — and for Part B purposes, it is not.

COBRA continuation coverage does not count as coverage based on current employment. If you retire at 65, take COBRA from your former employer, and put off Part B because you feel covered, the Part B late penalty still applies. Your 8-month Special Enrollment Period runs from the end of your employment, not the end of your COBRA. By the time an 18-month COBRA plan runs out, your Special Enrollment Period is long gone, and you are waiting for the next General Enrollment Period with a penalty attached.

The rule in one sentence: COBRA is not a reason to delay Part B. If you are turning 65, sign up for Part B during your Initial Enrollment Period even if you plan to take COBRA for other coverage, and use COBRA only as a supplement — or skip it and compare a Medigap plan instead.

What to Do, in Order

1. Six months before your 65th birthday: confirm your birthday-month window and whether you will be auto-enrolled (receiving Social Security) or need to apply yourself.
2. Three months before: apply for Medicare at ssa.gov/medicare, or by phone, or in person. Apply for Parts A and B together unless you have qualifying employer coverage and an HSA reason to wait on Part B.
3. Before your birthday month: decide on drug coverage. You need Part D or other creditable drug coverage from the start, or the Part D penalty clock starts. Our Open Enrollment checklist walks through the drug-plan checks.
4. In your birthday month: your six-month Medigap open enrollment window opens — the one time you can buy any Medigap plan with no medical underwriting. See our Medigap hub before this window passes.
5. If money is tight: check whether your state will pay your Part B premium through the Medicare Savings Programs — many people qualify and never apply.
6. Keep the paperwork: your Medicare card, your enrollment confirmation, and — if you delayed Part B for work coverage — the CMS-L564 employer form.

Don’t Confuse This With the December 7 Deadline

Two different Medicare deadlines get mixed up constantly, so here is the distinction:

• Your Initial Enrollment Period is personal. It is built around your 65th birthday, and it is your one-time window to join Medicare for the first time.
• Fall Open Enrollment (October 15 – December 7, 2026) is for people who are already on Medicare and want to change plans for 2027. It does not apply to your first enrollment. If you turn 65 in, say, November 2027, your window runs August 2027 to February 2028 — the December 7 date is irrelevant to you.

The same goes for Medigap’s six-month open enrollment window: it starts the month you turn 65 and enroll in Part B. It is not the December 7 deadline either. Three different windows, three different purposes — and the one that matters most at 65 is yours.

After You Enroll: Medigap and Part D

Original Medicare (Parts A and B) has no annual cap on what you pay out of pocket — Part B charges you 20% of most doctor and outpatient bills with no limit. That is why the decisions you make in your first months matter:

• Medigap (Medicare Supplement) pays some or all of that 20%, plus the Part A deductible. Your six-month open enrollment window is the only time insurers must sell you any plan with no health questions. After it closes, they can turn you down or charge more in most states.
• Part D covers prescription drugs. The 2027 deductible is $700 and the out-of-pocket cap is $2,400 — both final figures from CMS — so compare plans on your actual prescriptions, not on the premium alone.
• Medicare Advantage is the alternative to Original Medicare plus Medigap. If you choose it, you generally cannot also hold Medigap, so the choice is worth making deliberately, not by default.

All of these decisions sit inside the same first year. The Medicare 2027 hub pulls the whole picture together, and the hold-harmless rule — which protects your Social Security check from the Part B increase — is explained in our hold-harmless guide.

Frequently Asked Questions

Sources

• Medicare.gov — When to sign up for Medicare: https://www.medicare.gov/basics/get-started-with-medicare/sign-up/when-to-sign-up
• Social Security Administration — Apply for Medicare: https://www.ssa.gov/medicare
• Medicare.gov — Medicare Savings Programs: https://www.medicare.gov/medicare-savings-programs
• Centers for Medicare & Medicaid Services — 2026 Medicare Trustees Report projections (2027 Part B premium about $209.50); 2027 Part D deductible $700 and out-of-pocket cap $2,400 (announced April 2026)
• Medicare.gov — Part B late enrollment penalty and Special Enrollment Period rules; Consolidated Appropriations Act of 2021 (General Enrollment Period coverage now starts the month after enrollment, effective 2023)

All figures checked against primary sources on November 8, 2026. The 2027 Part B premium ($209.50) and deductible ($292) are Trustees Report projections, not final CMS figures.