Social security cards in the US.?

when a recalcitrant f-1 student here in the US is working with his /her social security card issued to him by the SS office,do the IRS who take taxes from the social know the differences in the types of social security numbers issued(like socials for immigrant workers,students etc) and the details on the social security number? 2.Will the IRS tax the fellow as an immigrant social security number? 3.I have this f-1 friends in school and they recently had their socials issued to them by the social security office.I was sooo surprised when the had the inscription like the **this number is established for brian thomas** as like the normal **work with DHS authorization only ** that normally appears on non-permanent residents socials.How were they able to get a **permanent resident type** of social scurity number and card?Or do f-1s qualify for such social security cards and numbers?What processes did they follow?

Social security cards in the US.?
There is no distinction between the social security numbers assigned to citizens, resident aliens and non-resident aliens with permission to work in the US. The distinction is found only on the cards.





The IRS will know how much tax to assess by the type of form he files, e.g., a Form 1040NR for non-residents, and the treaty provisions he takes advantage of on that return.

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