Yes. OPT students pay taxes: federal income tax on their U.S. wages, state income tax in most states where they work, and, once they lose nonresident alien status, Social Security and Medicare taxes too. During the first five calendar years in F-1 status, though, most OPT workers are exempt from Social Security and Medicare (FICA) withholding, and some qualify for treaty provisions that reduce federal tax further. The rules that govern your return are not the ones your U.S. coworkers follow.
Federal Income Tax on Your OPT Wages
Every dollar you earn working in the United States on OPT is U.S.-source income subject to federal income tax. Your employer withholds it from each paycheck. At the end of the year, you file a return to settle up.1Internal Revenue Service. Foreign Students, Scholars, Teachers, Researchers and Exchange Visitors
The form you file is not the one citizens and green card holders use. Most F-1 students are nonresident aliens for tax purposes, because the IRS treats you as an “exempt individual” whose days in the country do not count toward the substantial presence test for the first five calendar years of F-1 status. A single day in the country counts as one of those five years.2Office of the Law Revision Counsel. 26 USC 7701 – Definitions Nonresident aliens file Form 1040-NR rather than Form 1040.
Federal tax rates use the same progressive brackets residents pay, starting at 10 percent and rising with income. The big difference is deductions. Nonresident aliens cannot claim the standard deduction. Students from India are the narrow exception, eligible for the standard deduction under Article 21 of the U.S.–India income tax treaty. Everyone else is limited to certain itemized deductions, including state and local income tax paid and charitable contributions to U.S. nonprofit organizations. Personal exemptions have not been available for any filer since 2017.3Internal Revenue Service. Nonresident — Figuring Your Tax
One more wrinkle if you are married: if your spouse is not a U.S. citizen or resident, you generally have to use the married-filing-separately rate schedule, which can produce a higher bill than the single schedule at certain income levels.3Internal Revenue Service. Nonresident — Figuring Your Tax
The FICA Exemption for OPT Workers
Social Security tax (6.2 percent of wages) and Medicare tax (1.45 percent) are collectively called FICA. F-1 students on OPT who are still classified as nonresident aliens do not owe either. The exemption comes from federal law that excludes services performed by nonresident aliens temporarily present under an F visa when the work relates to the purpose for which they were admitted.4Office of the Law Revision Counsel. 26 USC 3121 – Definitions No FICA deductions should appear on your paycheck during the years you remain a nonresident alien.5Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
The exemption covers the STEM OPT extension too, as long as you have not yet exceeded five calendar years in F-1 status.6Study in the States. STEM OPT Frequently Asked Questions
If Your Employer Withheld FICA by Mistake
Some employers withhold Social Security and Medicare from exempt F-1 paychecks anyway. Start with your employer’s payroll department and ask for a correction and refund. If the employer cannot or will not fix it, you can claim the refund directly from the IRS by filing Form 843 with Form 8316.7Internal Revenue Service. Form 8316 – Information Regarding Request for Refund of Social Security Tax Erroneously Withheld Attach a copy of your W-2 showing the withheld amounts and, if you can, a written statement from the employer confirming the error and noting whether any refund has already been paid.8Internal Revenue Service. Instructions for Form 843
When You Start Owing FICA
The FICA exemption is tied to your nonresident alien status, not to OPT itself. Once you have been present in the United States for parts of more than five calendar years in F-1 status and you meet the substantial presence test, you become a resident alien for tax purposes and owe Social Security and Medicare tax on your wages the same way a citizen does.5Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
The substantial presence test counts physical days using a weighted formula: all days in the current year, one-third of the days from the prior year, and one-sixth of the days two years back. You meet the test if the total reaches 183 and you were present at least 31 days in the current year. During your first five calendar years as an F-1 student, your days are excluded because you are an exempt individual.9Internal Revenue Service. Substantial Presence Test After that, your days start counting, and full-time OPT or STEM OPT work will typically push you over the threshold.
A narrow escape hatch exists: even after five calendar years, a student can still be treated as an exempt individual by demonstrating to the IRS that they do not intend to permanently reside in the United States and that they continue to substantially comply with their visa requirements.2Office of the Law Revision Counsel. 26 USC 7701 – Definitions In practice most students on STEM OPT transition to resident alien status once the five years pass and start paying FICA from that point on. A separate student-employee FICA exemption exists for people who work for the school where they are enrolled at least half-time, but off-campus OPT jobs do not qualify.5Internal Revenue Service. Foreign Student Liability for Social Security and Medicare Taxes
Tax Treaty Benefits That Can Lower Your Federal Bill
The United States has income tax treaties with dozens of countries, and many contain provisions that reduce or eliminate federal income tax on certain student earnings. Amounts and conditions vary. Common examples:
- China: up to $5,000 per year in personal-services income is exempt for students who were residents of China on the date of arrival and are present in the United States for education or training.
- South Korea: up to $2,000 per year in personal-services income is exempt for students, with separate provisions covering up to $5,000 or $10,000 in specific training or government-program scenarios.
- India: rather than a wage exemption, the treaty allows eligible students to claim the standard deduction and certain dependent-related benefits normally unavailable to nonresident aliens.
The exact eligibility rules are specific to each treaty.10Internal Revenue Service. U.S. Tax Treaties (Publication 901) To have the exemption applied at withholding, give your employer Form 8233 before or when you start work. That tells payroll to reduce or skip federal income tax withholding on the treaty-exempt portion of your pay.11Internal Revenue Service. About Form 8233 If you did not submit Form 8233 and your employer withheld tax on income that qualifies, you can still claim the benefit on your Form 1040-NR and get the excess back as a refund.
Treaties almost always apply only to federal income tax. Most states and localities do not honor them, so a treaty exemption does not shrink your state bill.
State Income Tax
State income tax runs on its own tracks. If you work in a state that levies income tax, you generally owe it regardless of your visa status. Top marginal rates run from around 2 to 3 percent in some states to over 13 percent in others. Texas, Florida, Washington, and a handful of other states have no state income tax at all, so OPT workers based there avoid this obligation entirely.
Most states do not recognize the federal FICA exemption for nonresident aliens, and few offer any equivalent of their own. Treaties between the United States and your home country almost never reach state or local taxes. Every state has its own forms, rates, and deadlines, and failing to file a required state return can produce interest and penalties. Unresolved state tax debts can also complicate future immigration filings.
1099 Income and Self-Employment Tax
Some OPT students receive Form 1099-NEC rather than a W-2. If that describes you, you still report the income on your federal return and pay income tax on it. What you do not owe, while you remain a nonresident alien, is self-employment tax, the freelancer version of FICA.12Internal Revenue Service. Alien Liability for Social Security and Medicare Taxes of Foreign Teachers, Foreign Researchers, and Other Foreign Professionals A U.S. citizen freelancer owes 15.3 percent on net earnings; you do not, while nonresident status holds.
Once you become a resident alien, self-employment tax applies under the same rules that cover citizens.12Internal Revenue Service. Alien Liability for Social Security and Medicare Taxes of Foreign Teachers, Foreign Researchers, and Other Foreign Professionals Because no one withholds income tax from 1099 payments, you may also need to make estimated tax payments during the year to avoid an underpayment penalty at filing.
What You File, and When
Gather your documents before you start. You will need a Social Security number or Individual Taxpayer Identification Number (if you have neither, apply for an ITIN with Form W-7 alongside your return); Form W-2 from your employer;13Internal Revenue Service. About Form W-2, Wage and Tax Statement Form 1042-S if you had scholarship income or your employer applied a treaty exemption;14Internal Revenue Service. About Form 1042-S any Form 1099-NEC from contractor work; and your passport and Form I-20 to confirm entry and exit dates.
Two forms carry the return itself:
- Form 8843, the informational statement explaining your presence in the United States. Every F-1 student must file it, even in a year with no income.15Internal Revenue Service. Completing Form 8843
- Form 1040-NR, the nonresident alien income tax return, where W-2 wages, treaty adjustments, and any other items go.
A note on software: standard consumer products such as TurboTax are built for resident filers and will produce the wrong return for a nonresident alien. Specialized tools like Sprintax and Glacier Tax Prep handle Form 1040-NR and Form 8843; many universities give students free access through their international student office. Filing the wrong form means going back later with an amended return.
The deadline is April 15 of the year after the tax year if you had wages subject to federal income tax withholding, which covers most OPT jobs. If your only U.S. income was not subject to withholding (some scholarship situations), the deadline is June 15.16Internal Revenue Service. Taxation of Nonresident Aliens Form 1040-NR can be e-filed through software that supports it.15Internal Revenue Service. Completing Form 8843
Penalties for Missing the Deadline
Late filing triggers a failure-to-file penalty of 5 percent of the unpaid tax for each month or partial month, capped at 25 percent. If you file on time but pay late, a separate failure-to-pay penalty of 0.5 percent per month applies to the unpaid balance, also capped at 25 percent.17Internal Revenue Service. 20.1.2 Failure To File/Failure To Pay Penalties Interest runs on top of both.
The failure-to-file penalty is ten times larger than the failure-to-pay penalty, so if you cannot cover the full bill by April 15, still file the return and pay what you can. Unresolved federal or state tax debts can also create problems in future visa renewals or changes of status.