STEM OPT Tax Filing: What Changes and What Stays the Same
A STEM OPT tax guide for F-1 graduates covering Form 1040-NR, W-2 wages, FICA withholding, and state returns.
A STEM OPT extension changes work authorization, but it does not create a separate federal income tax return. The central tax questions remain your federal tax residency, how your wages were reported, whether FICA was correctly withheld, and where you worked.
Recalculate residency for the tax year
F-1 students can exclude eligible days from the substantial presence test for a limited number of calendar years. Time on STEM OPT still requires a year-by-year residency review. A graduate who becomes a resident alien for tax purposes generally uses Form 1040; a nonresident with taxable U.S. wages generally uses Form 1040-NR.
Do not assume that the STEM extension restarts the student calendar-year count. Keep prior I-20s, I-94 travel history, and Forms 8843 so the residency calculation is documented.
Reconcile wages and payroll tax
Collect W-2s from every employer and any 1042-S for treaty-related compensation. Check W-2 federal and state wages against pay statements. Authorized OPT work by a qualifying nonresident F-1 student may be exempt from Social Security and Medicare tax; that visa-based exemption generally ends when the worker becomes a resident alien for tax purposes.
If FICA was withheld in error, ask payroll to refund or correct it first. The IRS Form 843 route, with supporting documents and possibly Form 8316, is separate from an income tax refund on Form 1040-NR.
Track state work locations
A STEM OPT job can involve a move, remote days, or two employers in different states. Federal and state residency rules differ. Record addresses and where services were physically performed, then review each state tax agency’s instructions. One federal return does not settle every state obligation.
What to do next
Treat STEM OPT as a fresh annual tax review: residency, wages, FICA, and state sourcing in that order.
Related guides
Topics: STEM OPT, F-1 visa, FICA, Form 1040-NR
Official sources
General educational information. Tax rules depend on your facts and the tax year; check current IRS instructions before filing.