How To Apply For Medicare: A Step-By-Step-Guide.

1. Do you even need to apply?

2. Step 1: Find your enrollment window

3. Step 2: Pick your timing inside that window

4. Step 3: Gather what you’ll need

5. Step 4: Submit your application

6. Step 5: If you work past 65, file two extra forms

7. Step 6: Confirm it went through

8. Step 7: Finish the job the application doesn't finish

9. What Medicare costs in 2026

10. If you missed your window

11. If you live in Pennsylvania, three more things to do

12. Common questions

13. Talk to a real advisor

How To Apply For Medicare: A Step-by-Step Guide

The Short Version:

• You apply through Social Security, not Medicare. It takes about ten minutes online.

• If you're already drawing Social Security, you're enrolled automatically and there's nothing to do.

• If you're not, nobody will sign you up and nobody will remind you.

• Apply during the three months before your birthday month, not during it.

• The application only gets you Parts A and B. It does not get you drug coverage or fill the gaps.

• Book a 20-minute call with Part ABC → [Calendly link]

Do You Even Need To Apply?

Start here, because a lot of people spend an afternoon on this for no reason.

You're enrolled automatically if: you're receiving Social Security retirement benefits or Railroad Retirement benefits at least four months before the month you turn 65. Your card arrives in the mail one to two months before your birthday. The same applies if you've been on Social Security Disability for 24 months.

You have to apply yourself if: you're not collecting Social Security income yet. That's most people now, because most people delay their benefit past 65 to get a larger check later.

This is the single most common misunderstanding about Medicare. People assume that because Social Security processes the application, the two programs move together. They don't. You can start Medicare at 65 and leave your Social Security check untouched until 67 or 70. For a lot of people that's the right call financially.

But it comes with a catch: if you're not in the Social Security system yet, there is no trigger that enrolls you and no letter that warns you. The deadline is real, the penalty is permanent, and the responsibility is entirely yours.

Step 1: Find Your Enrollment Window

Nearly everyone applies during their Initial Enrollment Period — seven months built around your 65th birthday.

It opens three months before the month you turn 65, includes your birthday month, and closes three months after.

If you turn 65 in June, your window is March 1 through September 30.

Two Exceptions:

• Special Enrollment Period. If you've been covered by an employer group plan past 65 (yours or your spouse's, at a company with 20+ employees), you get an eight-month window to enroll after that employment or coverage ends. See Step 5.

• General Enrollment Period. If you missed your window entirely and had no other coverage, you're stuck waiting for January 1 – March 31. See the section on missing your window.

One rule that catches people: if you're leaving employer coverage while you're still inside your Initial Enrollment Period, the IEP controls. It overrides the SEP. They don't stack, and assuming they do has cost people months of coverage.

Step 2: Picking Your Timing Inside That Window

The window is seven months, but when you apply inside it changes when coverage actually begins.

When you apply Coverage starts

3 months before your birthday month 1st of your birthday month

During your birthday month 1st of the following month

1 month after 1st of the following month

2–3 months after 1st of the following month

Read that top row again. Applying early is the only way to have coverage on the first day of the month you turn 65. Everything else creates a delay.

Apply as early as the window allows. There is no downside. You'll have your card in hand before your effective date, which you'll need to set up a drug plan and a supplement, and both of those have their own lead times.

The scenario we see go wrong most often: someone sets their retirement date to their birthday. Group coverage ends June 30, they applied for Medicare on June 12, and their Medicare doesn't start until July 1 or later. Sometimes it works out. Often there's a gap, and gaps are when the expensive things happen.

Step 3: Gather What You'll Need

• Your Social Security number

• Your date and place of birth

• Your current address and phone number

• Your bank routing and account number, if you're setting up direct payment

• If you weren't born in the U.S.: your permanent resident card number and date of entry

• If you've been married: your spouse's name, Social Security number, and date of birth, plus the dates and places of any marriages and how they ended

• If you're still working or recently were: your employer's name and address, and the dates your group coverage started and ended

You do not need to send your birth certificate or any physical documents for a standard Medicare-only application. If Social Security needs verification, they'll tell you.

Step 4: Submit Your Application

Three ways to do it. Pick based on how much time you have.

Option A — Online (recommended)

This is the fastest route and the one most people should use.

1. Go to SSA.gov.

2. Create a my Social Security account, or sign in if you already have one. Account creation requires identity verification and can take a few minutes.

3. Choose "Apply for Medicare only" if you're not taking retirement income yet. If you want both, choose the combined retirement and Medicare application.

4. Work through the questions. It runs about ten minutes.

5. Submit, and save or screenshot your confirmation number. You will want it.

The one thing that derails online applications is a data mismatch. A maiden name, a name spelled differently than on your Social Security record, an old address, a citizenship record that doesn't reconcile. If the system rejects you, don't keep resubmitting. Switch to phone or in person.

Option B — By phone

Call Social Security at 1-800-772-1213. TTY users: 1-800-325-0778. Railroad Retirement Board: 1-877-772-5772.

Sometimes they take your application on the spot. More often they schedule a telephone appointment for a later date, then mail you forms you complete and mail back.

Budget six to eight weeks for this route. Don't use it if your effective date is close.

Option C — In person

Find your local Social Security field office at SSA.gov/locator. Most offices now require an appointment rather than a walk-in, so call ahead.

Two things to do before you leave the building:

1. Ask for a printout confirming you applied for Part A and Part B. You need proof of your Part B effective date to submit a Medigap or Part D application, and getting it in the moment is far easier than requesting it later.

2. Ask how you'll be billed. If you're not drawing Social Security, your Part B premium isn't being deducted from anything. You'll receive a quarterly bill, or you can set up Medicare Easy Pay for monthly automatic payment. People miss that first bill constantly and then get a termination notice that scares them badly.

Step 5: If You Worked Past 65, File Two Extra Forms

If you delayed Medicare because you had creditable employer coverage, your Special Enrollment Period application requires two forms that the standard online path doesn't cover:

• CMS-40B — Application for Enrollment in Medicare Part B

• CMS-L564 — Request for Employment Information, signed by your employer, proving you had group coverage while you were eligible

Get the L564 signed before your last day of work. Chasing an HR department you no longer work for is a genuinely miserable experience, and it can burn weeks you don't have.

A related warning about small employers: if your company has fewer than 20 employees, Medicare becomes your primary insurance at 65 whether you enroll or not. Your group plan drops to secondary. If you skipped Part B thinking work had you covered, you have a hole neither plan will pay. Enroll in both parts during your Initial Enrollment Period if you work for a small employer. This isn't really optional.

SEP applications take longer to process than standard ones. Expect several weeks.

Step 6: Confirm It Went Through

Don't assume. Verify.

• Card arrival: about three weeks after you apply, in most cases. If you were auto-enrolled, roughly two months before you turn 65.

• Check status online: log into your my Social Security account. Your application status is there.

• Check your Medicare number: create an account at Medicare.gov once you have your number. This is also where you'll look up plans and confirm your effective dates.

• If three weeks pass with nothing: call Social Security. Applications do get stuck, and they will not call you to tell you.

Write down your Medicare Beneficiary Identifier and your Part A and Part B effective dates. You'll need all three for every step that follows.

Step 7: Finish The Job The Application Doesn't Finish

This is the part the government leaves to you, and it's where the actual money is.

Your Medicare application gets you Part A and Part B only. That's it. It doesn't give you prescription coverage, and it doesn't cap what you can be charged.

Original Medicare has no annual out-of-pocket maximum. Not a high one, NONE. After the Part B deductible, you owe 20% coinsurance on most outpatient services, with no ceiling. A serious illness has no upper bound.

So you have two decisions left, and both have deadlines attached:

Prescription drug coverage. Part D is voluntary and sold by private insurers, not Social Security. If you don't enroll when you're first eligible and you don't have other creditable drug coverage, you pick up a lifetime penalty. The application doesn't do this for you and nobody will prompt you.

Filling the gap. Two approaches: a Medicare Supplement (Medigap) alongside Original Medicare and a standalone drug plan, or a Medicare Advantage plan that bundles everything. They work completely differently — different networks, different cost structures, different flexibility, different consequences if you want to change later.

Your Medigap window is the one with teeth. It's six months, it starts the first day of the month you're both 65 and enrolled in Part B, and during it no carrier can ask you a health question, deny you, or charge you more for your medical history. Once it closes, in most states you're subject to underwriting — meaning your health can make you uninsurable for a switch later.

That six-month window is the most valuable thing you get at 65, and it is the thing people most often let expire without knowing it existed.

What Medicare Costs In 2026

Worth knowing before you apply, because the numbers surprise people.

2026

Part A premium $0 for most people (with 40 quarters of work history)

Part A hospital deductible $1,736 per benefit period — can apply more than once a year

Part B standard premium $202.90/month

Part B annual deductible $283

Part B coinsurance 20%, with no annual cap

Part D national base premium $38.99 (a pricing benchmark, not your actual bill)

Part D maximum deductible $615

Part D out-of-pocket cap $2,100

Higher earners pay more for Parts B and D through IRMAA, an income surcharge that kicks in above $109,000 single or $218,000 joint. It's based on your tax return from two years prior, and it's a cliff — one dollar over the threshold triggers the whole surcharge. If you sold a property or took a large distribution two years ago, expect a letter.

If You Missed Your Window

If you had no other coverage and let your Initial Enrollment Period close, here's what happens.

You wait for the General Enrollment Period, January 1 through March 31. Coverage begins the first of the month after you apply.

And you pick up penalties:

• Part B penalty: 10% of the standard premium for every full 12 months you could have had Part B and didn't. It's added to your premium for as long as you have Part B. Not a one-time fine — a permanent increase.

• Part D penalty: 1% of the national base beneficiary premium for every month you went without creditable drug coverage, also permanent.

The Part B penalty is the one that compounds into real money. Someone who waits three years is paying 30% more every month for the rest of their life.

If you're reading this and you think you may have missed your window, call us. Some situations that look like a missed deadline are actually a qualifying Special Enrollment Period, and there are equitable relief provisions when Social Security or an employer gave you bad information. Both are worth checking before you accept a penalty.

If You Live In Pennsylvania, Three More Things To Do

The application process above is federal and identical in every state. These three are not, and they're where Pennsylvania residents routinely leave money on the table.

1. PACE and PACENET

Pennsylvania runs two state prescription programs for residents 65 and older, funded by the state lottery. They pay on top of your Part D plan. There is no asset test — your home, your car, and your savings don't count. Only prior-year income.

Program Single Income Married (combined)

PACE $14,500 or less $17,700 or less

PACENET $14,501 – $33,500 $17,701 – $41,500

Pennsylvania passed an increase to the PACENET ceiling (to $45,000 single / $55,000 married). Implementation has trailed the published figures, so if you're near the line, apply and let the program run your numbers.

The detail most people miss: your Medicare Part B premium doesn't count as income for PACE and PACENET. At $202.90 a month, that disregard pulls a meaningful number of people under the limit who were certain they were over it.

Requirements: 65 or older, a Pennsylvania resident for at least 90 days, and not receiving prescription coverage through Medicaid.

Apply: 1-800-225-7223, through the PACE Cares online portal, or by mail to PACE/PACENET, PO Box 8806, Harrisburg, PA 17105-8806.

2. Medicare Savings Programs

If your income is limited, Pennsylvania will pay your Part B premium — $202.90 a month back in your pocket — and in the case of QMB, your deductibles and cost-sharing too. Enrollment also triggers automatic Extra Help for prescriptions.

Program What it pays

QMB Part A and Part B premiums, plus deductibles, copays, and coinsurance

SLMB Part B premium

QI Part B premium (limited annual funding — apply early in the year)

Thresholds are based on monthly income and countable resources, and they adjust every year. Your home and one vehicle don't count toward resources.

Apply through COMPASS at compass.state.pa.us, or ask us to screen you — it takes about five minutes on a call.

Most people who would qualify never apply, because they assume they earn too much. Apply anyway. A denial costs you nothing.

3. Know the Pennsylvania Medigap rules before you choose

Two facts that make the supplement decision heavier here than in some states.

Your six-month Medigap window doesn't come back. After it closes, Pennsylvania carriers can medically underwrite you.

Pennsylvania has no birthday rule. About fifteen states give Medigap holders an annual window to switch carriers without underwriting. Pennsylvania isn't one of them. Bills have been introduced in both the House and Senate to create one, but as of now they're proposals, not law.

Together, that means the Medigap plan you pick at 65 is far stickier in Pennsylvania than in California or Oregon. If your health changes and you want a different carrier later, you may not be able to get one. Choose it like it's permanent, because functionally it often is.

One place Pennsylvania is better than most: state law requires carriers to offer Medigap to residents under 65 who qualify through disability or ESRD, and bars charging them more based on health history during their enrollment window. Most states don't protect that group at all.

Common Questions

Do I have to apply for Medicare every year?

• No. One application. Parts A and B renew automatically as long as premiums are paid, and Part D and Advantage plans auto-renew too. But your drug plan's formulary, pharmacy network, and costs change every single year, which is why reviewing coverage each fall matters.

Can I apply for Medicare without taking Social Security?

• Yes, and most people should. Choose "Apply for Medicare only" on SSA.gov. Your retirement benefit stays untouched.

How long does it take to get my Medicare card?

• About three weeks after you apply. Auto-enrolled, roughly two months before you turn 65.

Is "Medicare open enrollment" the same as the fall enrollment period?

• No, and mixing them up causes real problems. Your initial enrollment is built around your 65th birthday. The Annual Enrollment Period (October 15 – December 7) is when people who already have Medicare change Advantage or Part D plans for the following year.

What if I'm turning 65 but still working?

• Depends entirely on employer size. Under 20 employees: enroll in both parts during your IEP, because Medicare pays first whether you're enrolled or not. 20 or more: you can delay Part B without penalty, then use your eight-month Special Enrollment Period when you retire. Whether you should delay is a math question worth running.

Do I need an agent to apply for Medicare?

• No. The Social Security application is free and takes ten minutes. What you shouldn't do alone is everything in Step 7.

Talk To A Real Advisor

Submitting the application is the easy half. The half that costs money is what comes after: whether a Supplement or an Advantage plan fits how you actually use healthcare, which Part D plan covers your specific prescriptions at your specific pharmacy, and whether you qualify for help nobody told you about.

Part ABC is an independent brokerage. We're licensed in all 50 states and appointed with every major carrier, so we're not steering you toward one company's product.

What you get:

• A real advisor, not a call center. One person, and you keep that person.

• A response within hours, not a ticket number.

• A free Medicare Audit™️ every year during AEP we re-run your prescription list against the new plan year and tell you whether to move or stay. Most people find out their plan changed when the bill does.

Our help costs you nothing. Carriers pay us, and they pay the same regardless of which plan you pick, so we have no financial reason to point you anywhere but the right fit.

Book a 20-minute call → [Calendly link]

Or call us directly at [phone number].

The Three Sentence Version

Apply through Social Security in the three months before your birthday month. Verify it went through instead of assuming. Then handle drug coverage and the gap in Original Medicare, because the application doesn't, and the Medigap window that protects you from underwriting is only open six months.