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The short answer
On an F-1 visa you qualify for a Social Security number only when you have authorised work, such as an on-campus job, CPT or OPT; the SSA will not issue one just because you are enrolled. You need your passport, I-94, I-20, a letter from your designated school official naming the employer, and evidence of the job such as a signed employer letter or a pay slip.
The rule in one line
The SSA's guide for international students (Publication 05-10181, January 2024) is direct: an SSN will not be issued just for the purpose of enrolling in a college or school. You qualify once your school has authorised you to work on or off campus. Everything else in the process follows from that.
If you have no job yet, you do not need an SSN. The SSA says that your school should be able to give you another identification number for its own records.
Which kinds of work count
| Type of work | What proves authorisation to the SSA |
|---|---|
| On-campus job | Letter from your DSO plus evidence of the job (employer letter or pay slip) |
| CPT (curricular practical training) | Form I-20 with the employment page completed and signed by your DSO |
| OPT, including STEM OPT | Your work permit, Form I-766 (EAD), which you must present if you have one |
Our page on freelancing on OPT covers what kinds of work OPT allows; this article only deals with the number itself.
The letters the SSA wants
The DSO letter
The designated school official's letter must identify you, confirm your current status at the school, and name your employer and the type of work you will do. Ask the international student office for it once you have the job offer; many have a template.
The employment evidence
Alongside the DSO letter, the SSA asks for evidence that the job exists. Either of these is acceptable:
- A recent pay slip, if you have already started.
- A letter from your employer, signed and dated by your supervisor, describing the job.
Steps and timings
- Wait about 48 hours after reporting to your school, as the SSA suggests, so your record is updated.
- Get the DSO letter and the employer letter (or CPT-endorsed I-20, or your EAD).
- Start the application online, then finish it at a Social Security office or card centre within 45 calendar days.
- Bring originals: unexpired Nigerian passport with admission stamp, I-94 if available, I-20, the letters, and evidence of age (your Nigerian birth certificate or, failing that, the passport). Photocopies and notarised copies are refused.
- Expect the card about 14 days after approval.
You do not need the card before you start working. The SSA says your employer can use the SSA letter showing you have applied. Applying costs nothing; anyone charging you to "process" an SSN is not the SSA.
Three common situations for Nigerian students
A campus job in your first semester
Example. Chiamaka arrives in Houston for a master's programme in August and is offered a library assistant job starting on 2 September. She reports to the international office on arrival, waits two days, then asks her DSO for the letter and her supervisor for a signed, dated job letter. She applies on 25 August, inside the 30-day window, and starts work on time using the SSA receipt while the card is posted.
A job offer that starts in two months
Example. Tunde is offered a graduate assistantship from January but is ready to apply in October. Because the work begins more than 30 days after that date, the SSA cannot process it yet. He diarises a date in early December instead of making a wasted trip.
OPT after graduation
If you never had an on-campus job, your first SSN may come with OPT. The EAD card is the key document; bring it with your passport and I-20 endorsed for OPT. Some students ask for the SSN on the OPT application itself, in which case the card may be mailed; if it does not arrive, follow the steps in our page on a missing SSN card.
If you are refused or have no job
- If you only need a number for tax, for example to file a return for scholarship income, the IRS route is an ITIN on Form W-7, which is for people not eligible for an SSN.
- Banks may ask for an SSN, but the SSA lists bank accounts among things where it is generally not required. See opening a US bank account as a new arrival.
- Once you have the SSN, keep using it if you later change to H-1B or a green card. It is a number for life.
Where Pryme fits
Many F-1 students are paid in dollars and also receive school fees or upkeep from home. A Pryme account holds NGN and USD with local details for each, and Swap shows the rate and the fee before you approve a conversion. Our page on sending money to Nigeria on F-1 covers the other direction.
Questions people ask
Can F-1 students get an SSN without a job?
No. The SSA does not issue an SSN just for enrolment. You qualify once your school has authorised on- or off-campus work.
What letter do I need for an SSN on F-1?
A letter from your designated school official naming your employer and type of work, plus a signed, dated employer letter or a recent pay slip.
How soon can I apply for an SSN after arriving on F-1?
The SSA suggests waiting 48 hours after reporting to your school, and applying no more than 30 days before your job starts.
Can I start working before my SSN card arrives?
Yes. The SSA says your employer can use its letter showing you have applied.
Sources
- SSA: International Students and Social Security Numbers, Publication 05-10181 (Jan 2024) · accessed Oct 2026
- SSA: Social Security Numbers for Noncitizens, Publication 05-10096 (Feb 2026) · accessed Oct 2026
- IRS: Instructions for Form W-7 (Rev. December 2024) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.