You cannot retrieve your Social Security number online through a government website

The Social Security Administration does not offer an online tool to look up your number. If you have lost or forgotten your Social Security number, you will need to contact SSA directly by phone, mail, or in person at a local office. This is intentional — SSA treats your number as sensitive information and requires identity verification before releasing it.

The fastest route is calling SSA's main number at 1-800-772-1213. You will need to answer security questions to confirm your identity. Wait times are typically shorter early in the morning on weekdays. Have your driver's license or passport ready before you call.

Key Takeaways

  • Call 1-800-772-1213 to reach SSA by phone; you will need a government-issued ID and answers to security questions about your identity.
  • Visit your local Social Security office in person if you prefer face-to-face verification; find the nearest office at ssa.gov/locator.
  • Request a replacement Social Security card at the same time you confirm your number, since the card itself is what most employers and banks actually need.
  • If you are deaf or hard of hearing, use the TTY number 1-800-325-0778 or contact your local office directly.
  • Your Social Security number appears on tax documents, W-2 forms, and bank statements if you need to find it without contacting SSA.

What documents SSA will ask for when you call

Before SSA releases your number over the phone, they will verify your identity using information only you should know. They typically ask questions about your past addresses, previous employers, or financial accounts. Have your current address and date of birth ready. If you have recently moved, know your previous address as well.

You will also need to provide a government-issued ID number — usually your driver's license or passport number. SSA will cross-reference this against their records. If you do not have a government ID, you can still visit an office in person with other documents like a birth certificate or utility bill, though the process will take longer.

Finding your number on existing documents

Before calling SSA, check documents you may already have. Your Social Security number appears on W-2 forms from any employer, on 1099 tax forms, on bank statements, and on mortgage or loan paperwork. If you filed taxes last year, your number is on your tax return. If you have health insurance through an employer, it may appear on your insurance card or in your employer's benefits portal.

If you receive Social Security benefits, Medicare, or Medicaid, your number is in those accounts. Log into your benefits account online or call the program directly. This is often faster than calling SSA's general line, since you will reach a specialist who already has your account open.

Visiting a Social Security office in person

Walk-in visits are possible but expect to wait. Most offices do not take appointments for number replacement, though some locations now offer appointment scheduling through ssa.gov. Call ahead to ask whether your local office accepts appointments or walk-ins only.

Bring your driver's license, passport, or state ID. If you do not have government-issued ID, bring a birth certificate plus one additional document like a utility bill, lease, or bank statement. Bring proof of your current address — a recent utility bill or lease works. The office will verify your identity, confirm your number, and can issue a replacement card on the spot in most cases.

Find your nearest office using the SSA office locator at ssa.gov/locator. Enter your zip code to see hours, phone numbers, and whether that office currently accepts appointments.

Getting a replacement card while you are at it

When you confirm your number, ask SSA to issue a replacement card at the same time. You are may have access to to a free replacement card if yours is lost, stolen, or damaged. The card itself is what you will actually need to show employers, banks, and landlords — they rarely ask for the number alone.

If you call, SSA will mail the card to your address on file. It typically arrives within two weeks. If you visit an office in person, some locations can print a card during your visit; others will mail it. Ask when you arrive or when you call to schedule your appointment.

You can request a replacement card up to three times per year and up to ten times in your lifetime. There is no cost.

What to do if you suspect identity theft

If you lost your number and suspect someone else may be using it, contact SSA immediately. Call 1-800-772-1213 and tell them you believe your number has been compromised. SSA can flag your account and monitor it for fraudulent activity.

Also contact the Federal Trade Commission at identitytheft.gov to file a report. The FTC will create a recovery plan and send you a letter you can show to banks and creditors. Place a fraud alert on your credit report by calling one of the three major credit bureaus — Equifax, Experian, or TransUnion. You only need to call one; they will notify the others.

Frequently Asked Questions

Can I look up someone else's Social Security number?

No. SSA will only release a number to the person it belongs to, or to a legal representative with power of attorney. If you need a dependent's number for tax purposes, you can request it from SSA using Form SS-5 with proof of guardianship or custody.

What if I do not remember my security questions when I call?

Tell the representative you cannot answer the questions. They will ask you to visit an office in person instead. Bring your government-issued ID and proof of address. This takes longer but is more secure.

How long does it take to get a replacement card in the mail?

Standard delivery takes two to four weeks. If you need it faster, visit an office in person — some locations issue cards the same day. Call your local office to ask whether they can print cards on-site.

Do I need my Social Security number to apply for a job?

Yes. Employers use it for tax withholding and background checks. You can start the job with a receipt showing you have requested a replacement card, but you will need the actual number or card before your first paycheck.

What if my address on file with SSA is outdated?

Update it when you call or visit. SSA will mail your replacement card to your current address. You can also update your address online at ssa.gov if you have a my Social Security account, though you will still need to call or visit to confirm your number.