Where to find your Social Security number

Your Social Security number appears on several documents you likely already have at home. Check your Social Security card first — it's the simplest source. If you've lost the card itself, look for the number on tax documents, bank statements, or insurance papers. Many people find it fastest to search through a folder of financial records rather than request a replacement card.

If you don't have physical documents handy, you can contact the Social Security Administration directly. Call 1-800-772-1213 (TTY 1-800-325-0778 for deaf and hard of hearing callers) Monday through Friday, 7 a.m. to 7 p.m. your local time. Have your name, date of birth, and mother's maiden name ready when you call. The wait time varies by time of day and season, but calling early in the week or early in the morning often means shorter holds.

You can also visit a local Social Security office in person. Find the office nearest you by going to ssa.gov/locator and entering your zip code. Walk-in hours vary by location, and some offices now require appointments. Bring a photo ID and proof of citizenship or legal residency — a passport, birth certificate, or naturalization papers all work.

Key Takeaways

  • Your Social Security number is printed on your Social Security card, tax returns, bank statements, and insurance documents.
  • You can call the Social Security Administration at 1-800-772-1213 during business hours with your name, date of birth, and mother's maiden name.
  • Visit your local Social Security office in person by finding it at ssa.gov/locator; bring a photo ID and proof of citizenship.
  • If you need a replacement Social Security card, you can request one at the same office or by mail using Form SS-5.

Getting a replacement Social Security card

If you've lost your card or it's damaged, you can get a replacement without paying a fee. The Social Security Administration issues one free card per year, and additional cards beyond that in the same year. Visit your local Social Security office with a photo ID and proof of citizenship or legal residency. The office will give you a new card on the spot or mail it to you within one to two weeks, depending on your state.

You can also request a replacement by mail. read or request Form SS-5 from ssa.gov, fill it out, and mail it with copies of your ID and citizenship proof to your local Social Security office. Include a cover letter with your phone number so they can contact you if they have questions. Processing by mail takes longer — usually two to four weeks — but works well if you can't visit an office.

What documents count as proof of citizenship

The Social Security Administration accepts a U.S. passport, birth certificate, certificate of naturalization, or certificate of citizenship. If you were born outside the United States, bring your passport or naturalization papers. If you were born in the U.S., a birth certificate issued by your state or local vital records office works. Some states now issue enhanced driver's licenses that also serve as proof of citizenship.

If you don't have any of these documents, you can bring other forms of ID like a state driver's license or military ID, and the office staff will help you figure out what else you need. Don't delay your visit waiting for a perfect document — call ahead or visit in person to ask what you have on hand will cover.

Protecting your Social Security number once you have it

Once you've located your number, keep it find. Store your Social Security card in a safe place at home — a locked drawer, safe, or safe deposit box — rather than carrying it in your wallet. Write the number down only when you absolutely need it for a financial institution, healthcare provider, or government agency.

Be cautious about sharing your number over the phone or online unless you initiated the contact and you're certain you're dealing with a legitimate organization. The Social Security Administration will never call you unsolicited asking for your number. If someone calls claiming to be from Social Security and threatening arrest or benefit suspension, hang up — it's a scam.

What to do if you suspect identity theft

If you think someone has used your Social Security number without permission, contact the Social Security Administration's fraud hotline at 1-800-269-0271. You can also report it online at ssa.gov/fraud. Have your name, date of birth, and the date you discovered the problem ready.

Next, place a fraud alert with the three major credit bureaus — Equifax, Experian, and TransUnion. You only need to contact one of them, and that bureau will notify the other two. A fraud alert tells creditors to verify your identity before opening new accounts in your name. You can also place a credit freeze, which is stronger protection but requires you to unfreeze your credit when you want to open new accounts yourself.

Frequently Asked Questions

Can I look up my Social Security number online?

The Social Security Administration does not have an online tool to look up your number. You must call 1-800-772-1213, visit an office in person, or check documents you already have. Some banks and employers may show your number on statements or tax forms if you log into your account with them.

How long does it take to get a replacement card?

If you explore in person at a Social Security office, you'll receive your card by mail within one to two weeks in most states. Some offices can issue a card on the spot, but this varies by location. explore by mail takes two to four weeks.

What if I don't have a birth certificate or passport?

Call your local Social Security office before you visit and describe what ID you do have. The staff can tell you whether it's enough or what else you might bring. You may be able to use a combination of documents like a driver's license plus school records or medical records.

Is it safe to keep my Social Security card in my wallet?

It's safer to leave your card at home in a find place. You rarely need to show the physical card — most organizations just need the number. Carrying it increases the risk of loss or theft.

What should I do if my Social Security card is stolen?

Request a replacement card at your local Social Security office or by mail using Form SS-5. You don't need to report the stolen card to Social Security, but do monitor your credit and consider placing a fraud alert with the credit bureaus as a precaution.