Yes. A short business trip may create U.S. filing obligations, depending on your work activities and presence. A brief stay or payment through Japanese payroll does not automatically remove those obligations.
1. Review Compensation for U.S. Work
Employment income is generally sourced where the work is performed. Salary paid by a Japanese employer into a Japanese account may therefore include compensation taxable in the United States.
Review U.S. workdays, activities, and the periods covered by salary and bonuses.
Reference: IRS — Publication 515
2. Review the U.S.–Japan Treaty Exemption
For a qualifying treaty resident of Japan, Article 14 generally requires all three conditions:
- U.S. presence does not exceed 183 days in any 12-month period beginning or ending in the relevant calendar year.
- Compensation is paid by, or on behalf of, an employer that is not a U.S. resident.
- Compensation is not borne by that employer’s U.S. permanent establishment.
The day limit alone is insufficient. Payroll cost recharges and the actual employment arrangement require review, even when payment comes from Japan.
Reference: IRS — U.S.–Japan Tax Treaty Technical Explanation, Article 14
3. Tax Exemption Does Not Necessarily Eliminate Filing
A nonresident working in the United States may need to file Form 1040-NR even when compensation is treaty-exempt. Withholding exemptions and refund procedures should also be reviewed.
Reference: IRS — Publication 519
4. Review Prior Presence and State Requirements
Repeated trips or a previous assignment may affect tax residency. The treaty’s 183-day condition and the substantial presence test are different rules.
State filing and withholding requirements also require separate review.
Information to Gather
- U.S. presence for the current year and two preceding years
- U.S. work dates, states, and activities
- Employer and payroll payer
- Any compensation costs recharged to a U.S. operation
- Salary, bonuses, and withholding
- Prior U.S. assignments and filings
We review short-trip tax and filing requirements and explain the necessary steps. Please provide only an overview in your initial inquiry.
This answer concerns short business trips by employees. Treaty eligibility, employment arrangements, and activities affect the result. Different provisions may apply to self-employment and directors’ fees.
Information reviewed: October 14, 2026
