Where to start: Social Security Administration offices and online

You sign up for Social Security and Medicare through the Social Security Administration (SSA), not through Medicare directly. The SSA handles both programs from the same process. You can start the process online at ssa.gov, by phone at 1-800-772-1213 (TTY 1-800-325-0778), or in person at your local Social Security office.

The online route is fastest if you have a my Social Security account already set up. If not, you can create one at ssa.gov/myaccount. The phone line has wait times that vary by time of day and season, but representatives can walk you through the entire process. In-person visits at a local office let you bring documents with you and get when ready answers to questions, though you may need to make an appointment first.

Timing matters: you can sign up for Social Security as early as age 62, but your monthly payment will be smaller if you claim before your full retirement age (which ranges from 66 to 67 depending on your birth year). Medicare enrollment opens three months before you turn 65 and closes three months after, so missing that window can cost you in late penalties.

Key Takeaways

  • You sign up for both Social Security and Medicare through the Social Security Administration, either online at ssa.gov, by phone at 1-800-772-1213, or at a local office.
  • You can claim Social Security as early as age 62, but your monthly payment will be permanently lower if you claim before your full retirement age.
  • Medicare enrollment is open for three months before and three months after your 65th birthday; missing this window triggers a late enrollment penalty that stays on your account.
  • You will need your birth certificate, proof of citizenship or legal residency, and tax records showing your earnings history.
  • The entire process typically takes two to four weeks from submission to approval, though you can start receiving benefits while your process is being reviewed.

Documents you need before you explore

Gather these documents before you start, whether you are explore online, by phone, or in person. You will need your original birth certificate or a certified copy, a photo ID (driver's license, passport, or state ID), and proof of citizenship or legal residency (passport, naturalization papers, or permanent resident card). If you were born outside the United States, bring your immigration documents.

You will also need your Social Security number, which you should already have. If you do not, you will need to explore for one first at your local SSA office. Bring tax records or W-2 forms showing your work history for the past few years—the SSA already has your earnings record on file, but having documentation helps if there are gaps or discrepancies.

If you are explore for Medicare Part B (medical insurance) or Part D (prescription drug coverage) at the same time, have your current health insurance information ready. If you are still working and covered by an employer plan, tell the SSA—this affects when your Medicare coverage starts and what you owe in premiums.

explore online through my Social Security

Create a my Social Security account at ssa.gov/myaccount if you do not have one already. You will need your Social Security number, email address, and a way to verify your identity—usually a phone number or address on file with the SSA. Once you are logged in, look for "explore for Retirement Benefits" or "explore for Medicare" depending on what you need.

The online form asks for your personal information, work history, and banking details for direct deposit. You can save your progress and come back to it, so you do not have to finish in one sitting. Once you submit, you will get a confirmation number. The SSA will contact you if they need more information or documents.

Online applications typically move faster than phone or in-person applications because there is no queue. However, you cannot upload documents directly through the website—if the SSA asks for additional paperwork, they will tell you how to send it (usually by mail or in person at an office).

explore by phone or in person

Call 1-800-772-1213 to explore over the phone. Have your documents nearby, though you do not need to read every detail aloud—the representative will ask specific questions and fill in the form as you answer. The call usually takes 15 to 30 minutes. You will get a confirmation number at the end and a date when you should expect to hear back.

For an in-person appointment, find your local Social Security office at ssa.gov/locator or call the main number above. Many offices now require appointments rather than walk-ins, so book ahead. Bring all your original documents or certified copies. An appointment usually takes 30 to 45 minutes, and you will leave with a receipt showing what you applied for and what happens next.

In-person applications are useful if you have questions about how your work history affects your benefit amount, or if you need help understanding Medicare Part B and Part D choices. Representatives can explain the trade-offs between claiming early and waiting, and what your specific monthly payment would be under different scenarios.

What happens after you submit your process

The SSA will review your process and contact you if they need more information. This usually happens within two to four weeks. They may ask for additional documents by mail, phone, or email depending on how you applied. If you applied online, check your my Social Security account regularly for messages.

You do not have to wait for final approval to start receiving benefits. If your process is approved, your first payment arrives by direct deposit (or check if you did not set up direct deposit) within two to three weeks of approval. If there are delays or questions, the SSA will tell you what is holding things up and what you need to do.

For Medicare, your coverage typically starts on the first day of the month you turn 65, even if your process is still being processed. You will receive your Medicare card in the mail before your coverage begins. If you enrolled in Part B or Part D, your premiums start being deducted from your Social Security check once you start receiving it.

Understanding Medicare Part B and Part D enrollment

When you sign up for Social Security at 65, you are automatically enrolled in Medicare Part A (hospital insurance) and Part B (medical insurance). Part B has a monthly premium that comes out of your Social Security check. If you do not want Part B, you can decline it, but you cannot enroll later without paying a penalty unless you have may have access to employer coverage.

Part D (prescription drug coverage) is separate and optional. You choose a plan from private insurance companies during your enrollment window. If you do not enroll in Part D when you are first may be able to access, you pay a late enrollment penalty for as long as you have Medicare. The penalty amount depends on how long you went without coverage.

If you are still working and covered by an employer health plan or union plan, you may not need to enroll in Part B right away. Tell the SSA about your coverage—you can delay Part B without penalty as long as you are covered by an active employer plan. Once you leave that job, you have eight months to enroll in Part B without penalty.

If you need help or have questions during the process

The SSA website at ssa.gov has detailed information about benefits, retirement ages, and how your earnings affect your payment. You can also use their benefit calculator to see an estimate of what you might receive at different ages.

If you are confused about Medicare choices, the Centers for Medicare & Medicaid Services (CMS) runs Medicare.gov, which has plan comparisons and a phone line at 1-800-MEDICARE (1-800-633-4227). They can explain the differences between Original Medicare and Medicare Advantage plans, and help you compare prescription drug plans.

Some people benefit from talking to a financial advisor or tax professional before claiming Social Security, especially if they are still working or have other income. The decision of when to claim affects your taxes and your lifetime benefits, so getting personalized guidance can be worth the cost.

Frequently Asked Questions

Can I change my mind after I start receiving Social Security?

Yes, but only within limits. If you claimed within the last 12 months, you can withdraw your process and reapply later at a higher benefit amount—but you have to repay all the benefits you received. After 12 months, you cannot withdraw, but you can suspend your benefits at your full retirement age and let them grow until age 70.

What if I was born outside the United States?

You can still sign up for Social Security and Medicare if you are a U.S. citizen or permanent resident. Bring your immigration documents (green card, naturalization certificate, or visa). If you worked in another country, that work may not count toward your U.S. Social Security record, but the SSA can explain how your specific history is treated.

Do I have to sign up for Medicare Part B?

Part B is automatic when you turn 65, but you can decline it if you have employer coverage. If you decline and later lose that coverage, you have eight months to enroll without penalty. After that, you pay a permanent surcharge on your Part B premium for as long as you have Medicare.

How long does it take to get my first payment?

Approval typically takes two to four weeks. Once approved, your first payment arrives by direct deposit within two to three weeks. Your first check may be smaller than later ones because it is prorated for the month you started receiving benefits.

What if I am still working when I turn 65?

You can sign up for Social Security and Medicare even if you are working. However, if you claim Social Security before your full retirement age, your benefits are reduced by $1 for every $2 you earn above a certain limit (the limit changes yearly). Medicare has no earnings limit—you can work and receive Medicare at the same time.