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Thursday, June 12, 2025

Do international students have to pay Social Security (FICA) and Medicare taxes?

 Great question! Here’s the scoop on Social Security (FICA) and Medicare taxes for international students on F-1 visas working in the U.S.:


Generally, F-1 students are exempt from paying FICA taxes

  • Social Security tax (6.2%) and Medicare tax (1.45%) are NOT withheld from wages earned while you are a nonresident alien on F-1 status.

  • This exemption applies to work done on-campus, and work done off-campus under CPT or OPT.


Why this exemption?

  • The IRS considers F-1 students as nonresident aliens who are temporarily in the U.S. and therefore exempt under Internal Revenue Code Section 3121(b)(19).

  • The exemption lasts for the first 5 calendar years you are in the U.S. as an F-1 student.


⚠️ What if FICA was withheld anyway?

  • Sometimes employers mistakenly withhold FICA taxes from F-1 students.

  • You can request a refund of FICA taxes by contacting your employer or filing Form 843 with the IRS (Claim for Refund and Request for Abatement).


❓ What happens after 5 years?

  • If you stay in the U.S. longer and become a resident alien for tax purposes (pass the Substantial Presence Test after 5 years), then you must pay FICA taxes on wages earned.


Summary Table:

Situation FICA Taxes (Social Security & Medicare)
F-1 student, nonresident alien (first 5 years) Exempt
F-1 student, resident alien (after 5 years or passing SPT) Must pay
Employer mistakenly withholds FICA You can claim a refund

Let me know if you want tips on how to request a refund or how to check if FICA was withheld!

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