Lesson · United States
Social Security number
When do I actually need an SSN?
An SSN is for authorized work and taxes—not a general student ID. Apply only when you are eligible. Appointment steps live in the SSN service.
Need it when
- You have a job offer with work authorization
- Your school issued the SSN support letter
- A vendor wrongly demands SSN for everything
Apply for an SSN only when you are eligible—work auth + school letter, not arrival day.
Write why you think you need an SSN now (job / CPT / tax)—or open Living without SSN if you do not.
Mark at least three concepts (0/5)—especially what it is, when eligible, and protect.
Must know · SSN
Five concepts—not an SSA checklist
Tap each when you understand it. Document packs live in the SSN service.
Do the how-to elsewhere
Primary handoffs
Practice · order of work
- 1Mark the five SSN conceptsWhat it is, when eligible, ITIN, protect, living without one.Review concepts
- 2Confirm eligibility with your schoolOn-campus offer or CPT auth + support letter—then open SSN playbook.SSN playbook
- 3If not eligible yet: live without SSNBank and SIM paths that do not wait on a number.Non-SSN lesson
Common mistakes
SSA on day one with no work auth
Confirm eligibility with your international office first.
Paying anyone for an SSN
Legitimate process is official SSA only.
Using this page as a filing checklist
SSN service owns documents and appointment steps.
Putting SSN on every form
Decline casual requests; ask why the full number is required.
Do next
SSN playbook
Eligibility check, appointment pack, and scripts. If you are not eligible yet, open Living without an SSN instead.
Also useful
Official source check
Verify changing information before you act
These links are checked server-side from an allowlisted set of government and official study authorities. Availability is not confirmation of eligibility.