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Understanding Your First US Paycheck on OPT

Expected $3,000 but only received $2,100? Welcome to the US tax system. Here is every deduction explained—and which ones you might be exempt from as an F-1 student.

7 min readUpdated July 12, 2026
Pay stub showing gross pay and deductions next to a W-4 form and a phone with a direct deposit notification

You started your OPT job, worked hard for two weeks, and excitedly opened your first pay stub. The gross pay says $3,000, but the net pay (what you actually received) is only $2,100. Where did the other $900 go? Let's break down every single deduction line by line.

Your Pay Stub Decoded

Line ItemAmountWhat It Is
Gross Pay$3,000.00Your full salary before any deductions
Federal Income Tax-$450.00Withheld based on your W-4 form
State Income Tax-$180.00Varies by state (some have 0%)
Social Security (OASDI)-$186.006.2% — F-1 students may be EXEMPT
Medicare-$43.501.45% — F-1 students may be EXEMPT
Net Pay$2,140.50What hits your bank account

The FICA Exemption for F-1 Students

This is the most important thing to know: F-1 students who are classified as Nonresident Aliens (NRA) are exempt from FICA taxes (Social Security + Medicare). This saves you 7.65% of every paycheck.

To be classified as NRA, you must have been in the US for fewer than 5 calendar years in F-1/J-1/M-1/Q-1 status. If you started your degree in 2022, you remain NRA through at least 2026.

Is Your Employer Deducting FICA Incorrectly?

Many employers' payroll systems are not configured to recognize the F-1 FICA exemption. If you see Social Security and Medicare deductions on your pay stub, immediately contact your HR/payroll department and show them IRS Publication 519 and Internal Revenue Code Section 3121(b)(19). They must correct it and refund the over-withheld amount. If they refuse, you can claim a refund by filing Form 843 and Form 8316 with the IRS.

Filling Out the W-4 Form

On your first day at work, HR will hand you a W-4 form. This form tells your employer how much federal income tax to withhold from each paycheck. As a Nonresident Alien, you have special rules:

  • You must write "Nonresident Alien" or "NRA" above the dotted line on Step 1(c).
  • You cannot claim "Married Filing Jointly" status (even if you are married).
  • You are generally only allowed to claim 1 allowance (unless a tax treaty allows more).

Don't Let Payroll Mistakes Cost You

Between FICA exemptions, W-4 complexities, and SEVIS reporting, starting your first OPT job is overwhelming. TrackMyOPT helps you stay compliant by tracking your employment start dates, unemployment counters, and SEVIS reporting deadlines—so you can focus on understanding your pay stub instead of worrying about deportation.

States with No Income Tax

If you can choose where to work, consider these 9 states with no state income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Working in one of these states means one less deduction from your paycheck.


Start Your OPT Journey Right

Your first paycheck is just the beginning. TrackMyOPT ensures you stay compliant from Day 1 with automated employment tracking, SEVIS alerts, and secure document storage.

This content is for educational purposes only and is not legal or immigration advice. Always verify information with your DSO, employer, or a licensed immigration attorney. Read our full disclaimer.