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FICA Tax for International Students: Who Pays and Who Is Exempt

4 min read

In this guide
  1. What is FICA?
  2. Are F-1, J-1 and M-1 students exempt from FICA?
    1. What counts as exempt work?
    2. What is not covered?
  3. What changes after 5 years?
  4. What is the student exemption?
  5. What if FICA was withheld by mistake?
  6. Do tax treaties change anything?
  7. Common mistakes
  8. Frequently asked questions
    1. Do I still pay income tax if I am FICA-exempt?
    2. Does the exemption apply to Q visa holders?
    3. Is the 5 years counted in calendar years?
  9. Key takeaways
  10. Related guides
  11. Sources

Quick answer: FICA tax for international students usually does not apply in the first years. F-1, J-1 and M-1 students who have been in the US for less than 5 calendar years are generally nonresident aliens and are exempt from Social Security and Medicare tax on wages, as long as the work is allowed for their status and fits the purpose of the visa. If your employer withholds FICA by mistake, you can claim it back.

Your first US paycheque can be a shock: a line for Social Security and another for Medicare, taking a slice you did not expect. For many international students, those deductions should not be there. Here is how the exemption works, where it stops, and what to do if payroll gets it wrong.

What is FICA?

FICA is the payroll tax that funds Social Security and Medicare. It appears on pay slips as separate lines. For how US payslips and tax IDs fit together, see SSN vs ITIN for new immigrants.

Are F-1, J-1 and M-1 students exempt from FICA?

According to the IRS, F-1, J-1 and M-1 students in the US for less than 5 calendar years are generally nonresident aliens, and are exempt from Social Security and Medicare tax on wages for services performed in the US. Two conditions apply: USCIS must allow the work for that status, and the work must serve the purpose of the visa.

What counts as exempt work?

  • On-campus work up to 20 hours a week, or 40 hours a week during summer vacations.
  • Off-campus work that USCIS allows.
  • Practical training, on or off campus.

What is not covered?

  • F-2, J-2 and M-2 spouses and children.
  • Work that USCIS does not allow.
  • Work that is not closely connected to the purpose of the visa.

The exemption also ends if you switch to a non-exempt status or become a resident alien.

What changes after 5 years?

After more than 5 calendar years, F-1, J-1 or M-1 students who meet the substantial presence test generally become resident aliens and are liable for FICA, unless the separate student exemption applies.

What is the student exemption?

The student exemption (IRC 3121(b)(10)) applies to all students regardless of residency status. It covers on-campus work for a school where the student is enrolled at least half-time, and the work must be incidental to the course of study. Off-campus jobs and work for other employers do not qualify. The IRS points to Revenue Procedure 2005-11 for how to check eligibility.

Situation FICA treatment (IRS)
F-1/J-1/M-1, under 5 calendar years, allowed work Generally exempt
Spouse or child on F-2/J-2/M-2 Exemption does not cover them
Over 5 calendar years, passes substantial presence test Generally liable, unless student exemption applies
Half-time student, on-campus work incidental to study Student exemption can apply

What if FICA was withheld by mistake?

  1. Ask your employer for a refund first.
  2. If that fails, file Form 843 and Form 8316 with supporting documents.

Keep your visa documents, pay slips and employer correspondence together. Our documents checklist helps.

Do tax treaties change anything?

The IRS notes that totalization agreements with some countries must be considered when working out FICA liability. This is separate from income tax treaties; see US tax treaty benefits explained.

Common mistakes

  • Assuming all deductions on the pay slip are unavoidable.
  • Working off campus without permission, which can both break visa rules and lose the exemption.
  • Forgetting that spouses on F-2 or J-2 are not covered.

Frequently asked questions

Do I still pay income tax if I am FICA-exempt?

FICA exemption is separate from income tax. See nonresident alien tax.

Does the exemption apply to Q visa holders?

The IRS page we checked does not state Q visa FICA rules, so we do not cover them here.

Is the 5 years counted in calendar years?

Yes. The IRS uses calendar years, and part of a year counts as a year.

Key takeaways

  • F-1, J-1 and M-1 students under 5 calendar years are generally FICA-exempt on allowed work.
  • After 5 years, the substantial presence test can make you a resident alien liable for FICA.
  • Claim back wrongly withheld FICA via your employer, then Forms 843 and 8316.

This page is general information, not tax or legal advice. Confirm your position with your school’s international office or a qualified adviser. Last updated: October 2026.

Sources

  • IRS: Foreign Student Liability for Social Security and Medicare Taxes
  • IRS: Substantial Presence Test

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