A Social Security Number, or SSN, is a 9-digit number used for work, tax reporting, banking, credit history, and some government services. Many people need one after arrival, but eligibility depends on status and work authorization.
Key points
- You can get an SSN if you have U.S. work authorization or another reason SSA recognizes. If you do not, wait — most everyday tasks can be done without one.
- Start the application online if SSA offers that for your case, then bring original documents (not photocopies) to a Social Security office.
- Applying is free. Anyone charging to "process" or "speed up" an SSN application is not the SSA.
- After approval, the card usually arrives by mail in 5 to 10 business days.
- Store the card at home and memorize the number when you need it. Do not carry the card every day.
Who This Guide Is For
Use this if you need to know whether you can apply for an SSN and what to prepare before you visit Social Security. It fits immigrants, international students with work authorization, and workers arriving in the United States.
What You Need
Your documents depend on your status. Plan to bring originals that prove identity, age, and lawful immigration or work-authorized status. SSA does not accept ordinary photocopies or notarized copies as a substitute for required original documents.
If you are applying through a student or work path, do not assume your passport and visa are enough. Many students need documents from the school that show eligibility for the specific employment or program activity. Workers may need employer paperwork, a work-authorized immigration record, or another proof that matches their status. Ask your international student office, program sponsor, employer, or HR contact what document they expect before you go to SSA.
Common documents to prepare
0 of 6 doneWhen Not To Apply Yet
Do not rush an SSN application just because a private company asks for the number. Apply when you have a real eligibility path and the documents to support it.
You may need to wait if:
- Your work authorization has not started or your document has not arrived.
- Your school has not issued the employment or support letter required for your student category.
- Your arrival or immigration record may not be available for SSA verification yet.
- You only want the number for convenience and do not have work authorization or a valid nonwork reason.
- A bank, landlord, phone company, or app asks for an SSN but can accept another path or can wait.
Step-by-Step
- Confirm you are eligible to request an SSN.
- Gather the original documents required for your situation.
- Start the application online if the SSA page offers that option for you.
- Visit a local Social Security office if you need to show documents in person.
- Keep the receipt or confirmation if one is provided.
- Watch your mail for the Social Security card after approval.
- Store the card in a safe place and memorize the number only when you need to use it.
If you start the application online, finish the required in-person document step within the window SSA gives you. For many noncitizens, that means visiting a Social Security office or Card Center with the required documents after starting online.
Common Mistakes
Decision Rules
| Situation | Practical rule |
|---|---|
| You have U.S. work authorization | You will likely need an SSN for payroll and tax reporting. |
| You are an F-1, J-1, or other international student | Check your school process first. Many students need authorized employment plus a school or program letter before applying. |
| You are not authorized to work | You may only qualify if you have a valid nonwork reason recognized by SSA rules. |
| A private company asks for your SSN | Ask why it is needed and whether another identifier can be used. |
| You recently arrived | If you are applying directly through SSA, consider whether your DHS record is ready for verification. |
| Your card is lost or stolen | Follow the SSA replacement process and monitor for identity theft risk. |
Costs / Timing
Applying for an SSN is free. After SSA approves the application, SSA says the card is usually mailed in 5 to 10 business days. Do not make plans that require the number until you receive the card or have confirmation that SSA assigned the number.
Frequently asked questions
How much does it cost to apply for an SSN?
Nothing. Applying for an SSN is free. Anyone who charges a fee to "process" or "speed up" your SSN application is not the Social Security Administration.
How long does the card take to arrive?
After SSA approves the application, the card is usually mailed in 5 to 10 business days. Do not make plans that require the number until you receive the card or have confirmation that SSA assigned it.
Can I get an SSN if I am not authorized to work?
Usually not. Without work authorization, you may only qualify if you have a valid nonwork reason recognized by SSA rules. Many everyday tasks, like opening a bank account, can often be done without an SSN.
Should I carry my SSN card with me?
No. Use your passport, state ID, or driver's license for normal identification. Keep the card at home unless a specific appointment requires it, because a lost card creates identity theft risk.
A company asked for my SSN. Do I have to give it?
Not always. Ask why it is needed and whether another identifier can be used. Provide it when there is a real need: employment paperwork, tax forms, banking, credit, or required government forms.
What if my card is lost or stolen?
Follow the SSA replacement process and monitor for identity theft. Your number stays the same; only the card is replaced. See How to Protect Your Personal Information.
What To Do Next
- If you will work in the U.S., ask your employer what payroll documents they need.
- If you are a student, ask your international student office about the exact school process.
- If your card has not arrived yet, read What To Do While Waiting for Your SSN.
- If you move before the card or another government document arrives, use USCIS Address Change Versus USPS Forwarding to update each separate system.
- If a state licensing checklist asks for an SSN or evidence that you are not eligible, read Driver License and State ID Basics before requesting documents from SSA.
- If you are opening a bank account, ask whether you can start with your passport and immigration documents while waiting for an SSN.
- Before your first payroll cycle, read Understanding Your First Paycheck.
- After you receive an SSN, learn how credit history works in the U.S. in What Is a Credit Score?.
Related Guides
- What To Do While Waiting for Your SSN
- How to Open a U.S. Bank Account
- Understanding Your First Paycheck
- Taxes for Newcomers
- Proof of Address
- USCIS Address Change Versus USPS Forwarding
- Credit Checks
- How to Protect Your Personal Information
Sources
This guide uses official or primary sources for rules and government steps. Local rules may still vary. (Last checked: September 10, 2026)
- SSA: Request Social Security number for the first time
- SSA: If I am not a U.S. citizen, can I get a Social Security number?
- SSA: Types of Social Security cards
- SSA: Social Security Numbers for Noncitizens