US Withholding Forms Guide for International Workers
Help international students and workers complete payroll withholding correctly before they get paid. Tessa Tax already helps with last year's filing. This guide covers the current and future paycheck side.
Where this fits in Tessa Tax
W-4 is before-payroll guidance. The annual filing flow still handles W-2, 1042-S, 1099s, treaty review, residency, and final tax return prep after the tax year ends.
School year starts in September
Students starting campus jobs, CPT, OPT, internships, or assistantships should handle W-4 and treaty paperwork before the first paycheck.
W-4 affects future paychecks
This is payroll setup for current and future wages. It is different from filing last year's tax return.
Residency drives the rules
Residents generally use the regular Form W-4 instructions. Nonresident aliens use IRS Notice 1392 special instructions.
1. Determine residency
Green card holders and people who pass the substantial presence test generally follow resident payroll rules. Nonresident aliens follow Notice 1392.
2. Choose the right form
Use Form W-4 for wage withholding. If treaty-exempt compensation is being claimed, use Form 8233 with the employer instead of W-4 for that exemption.
3. Review payroll after payment
After the first paycheck, confirm federal withholding, FICA treatment, treaty handling, and year-end form expectations.
Notice 1392 walkthrough
How a nonresident alien should approach Form W-4
These are guide notes for the most common international student and worker cases. The employer's payroll team still receives the actual Form W-4 or Form 8233.
Confirm tax residency first
If the worker is a nonresident alien, use Notice 1392. If they are a resident alien, follow the regular Form W-4 instructions.
Use an SSN, not an ITIN
Notice 1392 says nonresident employees must enter a Social Security number on Form W-4. An ITIN is not used for Step 1(b).
Usually select Single or Married filing separately
A nonresident alien generally checks Single or Married filing separately, even if married, because nonresident aliens generally do not file jointly.
Only use multiple jobs rules when needed
Complete Step 2 only if the worker has more than one job at the same time. Do not include a spouse's job for NRA withholding.
Dependent credits are limited
Most nonresident aliens should not use Step 3. Some residents of Canada, Mexico, South Korea, or students and business apprentices from India may have limited exceptions.
Other US-taxable income
Use this only for other income that will not have withholding and is taxable in the United States.
Limited deductions and adjustments
Nonresident deductions and adjustments can be limited. Only include amounts expected to be claimable under the NRA rules.
Write Nonresident Alien or NRA
Notice 1392 instructs nonresident aliens to write Nonresident Alien or NRA below Step 4(c). Additional withholding, if any, still goes in Step 4(c).
W-4 vs. Form 8233
W-4 tells payroll how much federal income tax to withhold from wages. Form 8233 is used when a nonresident alien claims a treaty withholding exemption for compensation from personal services.
Common errors to avoid
- Claiming exempt from withholding as a nonresident alien.
- Using the IRS Tax Withholding Estimator even though Notice 1392 says NRAs should not use it.
- Selecting Head of household or Married filing jointly on Step 1(c) while still a nonresident alien.
- Putting an ITIN on Form W-4 instead of an SSN.
- Using W-4 to claim treaty-exempt wages when Form 8233 is the correct treaty withholding form.
- Forgetting to update payroll after becoming a resident for tax purposes.
School season workflow
September readiness checklist
Confirm visa classification, work authorization path, and expected start date.
Complete W-4 using Notice 1392 if nonresident. Prepare Form 8233 if claiming a treaty exemption.
Check that federal withholding appears reasonable and that treaty/FICA treatment matches the worker's facts.
Collect W-2, 1042-S, 1099, or other forms and use them for the annual Tessa Tax filing flow.
IRS sources used for this guide
Supplemental Form W-4 instructions for nonresident aliens.
Treaty withholding exemption form for personal services compensation.
US Tax Guide for Aliens, including residency and nonresident filing rules.
Federal income tax withholding methods used by employers.
Ready to prepare the actual withholding form?
Use the saved residency and identity details in your filing to generate an unsigned W-4, Form 8233, or W-8BEN for review and signature.