Taxes During Optional Practical Training: What Changes When You Start OPT

Starting an OPT job does not reset your tax status

Optional Practical Training lets you work in your field on F-1 status after graduation. For taxes, an OPT job works the same way your on-campus job did: your employer issues a W-2, withholds federal and state income tax, and reports your wages to the IRS. What changes is the paperwork you hand your new employer and, for some students, whether the FICA exemption still applies.

FICA exemption continues if you are still within 5 years

The IRS lists practical training positions, on or off campus, as covered work under the nonresident student FICA exemption. OPT and STEM OPT wages stay exempt from Social Security and Medicare tax as long as you remain within your first 5 calendar years of US presence and still count as a nonresident alien for tax purposes. Your new employer needs to know your F-1 status and OPT authorization to apply this correctly, since a payroll system unfamiliar with international hires sometimes withholds FICA by default.

If that happens, ask payroll to stop withholding and refund what was taken in error. If payroll cannot fix it, file Form 843 with Form 8316 to claim the refund from the IRS directly.

The 5-year clock does not restart for OPT

Your 5-calendar-year count as an exempt individual started when you first arrived on F-1 status, not when OPT began. If you were already close to or past that mark during your final year of study, you may cross into resident alien status for tax purposes partway through OPT. Once that happens, the nonresident FICA exemption ends and standard payroll tax withholding applies to your wages, the same as for a US citizen coworker. You also switch from Form 1040-NR to the standard resident Form 1040 for that tax year, and your return covers your full worldwide income, not just US-source income.

Treaty benefits do not carry over between employers

If your country's tax treaty exempted part of your wages during a campus job, that exemption does not automatically follow you to your OPT employer. Submit a fresh Form 8233 to the new employer to apply the exemption at the payroll level again. Skip it, and you can still claim the treaty benefit later when you file Form 1040-NR, but you wait for the refund instead of seeing it in your paycheck.

Filing requirements do not change

You still file Form 8843 every year you are present in the US, regardless of income or work status. Once you earn OPT wages, you also owe Form 1040-NR for that year, reporting the income and any tax due after withholding. STEM OPT does not add a separate tax filing beyond continuing the same OPT-era pattern.

W-2 versus 1099 pay on OPT

Most OPT positions pay you as a regular employee on a W-2. A smaller number of arrangements pay OPT workers as independent contractors on a 1099, which changes how tax gets withheld: nobody withholds anything from a 1099 payment, so you are responsible for setting aside money for your eventual tax bill yourself. If your OPT offer describes you as a contractor rather than an employee, confirm with your school's international student office that the arrangement fits your training plan and OPT rules before accepting it, since the employment structure affects immigration compliance as well as taxes.

State taxes keep applying the same way

The FICA exemption is a federal Social Security and Medicare rule, and it has no effect on state income tax. Your OPT employer withholds state tax the normal way for whatever state you work in, following that state's own rules for nonresident or part-year filers. Check whether your OPT state requires its own nonresident return separate from your federal Form 1040-NR, since state filing rules vary and do not always match federal ones.

Unpaid gaps during OPT

Time between jobs, or an unpaid training period at the start of OPT, does not change your Form 8843 obligation. You still file it for every year you are present in the US on F-1 status, income or no income. If you have no wages at all for a full tax year during OPT, that year likely falls into the Form 8843-only category, the same as it would for a student with no on-campus job.

Moving from OPT into STEM OPT

The 24-month STEM OPT extension keeps you on F-1 status with the same employer requirements for maintaining your training. On the tax side, nothing resets: your 5-calendar-year count keeps running from your original F-1 start date, your FICA exemption status depends on where that count stands, and you keep filing the same forms as during initial OPT. Treat the switch to STEM OPT as a continuation for tax purposes, not a new starting point.

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