U.S. Tax Services for Korean Expatriates

U.S. Tax Compliance and Advisory Services for Korean Expatriates and Assignees

Dow & Sohn CPAs provides U.S. tax compliance and advisory services for Korean executives and employees assigned to work in the United States. We help expatriates navigate U.S. federal and state income tax, Korean-source income, foreign tax credits, foreign financial asset reporting, and U.S.–Korea tax treaty and social security issues.

OVERVIEW

U.S. TAX FOR KOREAN EXPATRIATES

U.S. tax obligations are not determined by visa type or length of stay alone. Working in the United States as an expatriate can create tax and reporting obligations in both the U.S. and Korea. U.S. tax residency, compensation paid by a Korean headquarters, housing and other expatriate benefits, Korean investment income, foreign financial accounts, and social security coverage can all affect the U.S. tax return. Dow & Sohn CPAs helps Korean expatriates understand these requirements and coordinate their U.S. tax filings with their Korean income and financial information.

OUR SERVICES

01 | U.S. FEDERAL & STATE TAX RETURNS

Preparation of U.S. federal and applicable state income tax returns, including California where applicable, for Korean expatriates and their families.

02 | U.S. TAX RESIDENCY

We review U.S. tax residency under the Substantial Presence Test and related rules, including applicable treaty considerations, to determine resident-alien or nonresident-alien status and the appropriate U.S. tax filing method.

03 | KOREAN INCOME & FOREIGN TAX CREDIT

We review Korean-source salary, interest, dividends, other income, and Korean taxes paid, and coordinate U.S.–Korea double taxation through foreign tax credits where applicable.

04 | EXPAT COMPENSATION & BENEFITS

We review the U.S. tax treatment of salary, bonuses, housing allowances, education support, and other expatriate benefits paid by U.S. or Korean employers.

05 | FBAR & FOREIGN ASSET REPORTING

We review applicable U.S. information reporting obligations, including FBAR and Form 8938, for Korean bank accounts, securities accounts, and other foreign financial assets, and assist with the required filings.

06 | U.S.–KOREA TAX TREATY & SOCIAL SECURITY

Analysis of applicable U.S.–Korea income tax treaty provisions and social security coverage for employees assigned between Korea and the United States.

U.S.–KOREA SOCIAL SECURITY TOTALIZATION AGREEMENT

Korean employees temporarily assigned to the United States may, depending on their circumstances, remain covered under the Korean social security system rather than the U.S. Social Security system under the U.S.–Korea Social Security Agreement. Appropriate documentation, including a Certificate of Coverage where applicable, is important in determining social security coverage and supporting an exemption from U.S. Social Security and Medicare taxes.

Frequently Asked Questions

Q1. Does a Korean expatriate working in the U.S. have to file a U.S. tax return?

It depends on U.S. tax residency, income, and other circumstances. Korean employees working in the U.S. may have federal and state filing obligations even when some or all of their compensation is paid by a Korean employer.

Q2. When does a Korean expatriate become a U.S. tax resident?

U.S. tax residency is generally determined under rules including the Substantial Presence Test, although exceptions and tax treaty provisions may apply depending on the circumstances.

Q3. Do I have to report salary paid by my Korean headquarters?

Potentially. U.S. tax treatment depends on factors including tax residency and where the services are performed. The fact that compensation is paid from Korea does not by itself determine whether it is taxable in the United States.

Q4. Can Korean taxes be credited against U.S. taxes?

Depending on the type of income and taxes paid, a Foreign Tax Credit may be available to reduce double taxation. The applicable rules should be reviewed for each type of income.

Q5. Do Korean expatriates have to file FBAR?

U.S. persons may be required to file an FBAR when the aggregate maximum value of their foreign financial accounts exceeds the applicable reporting threshold. Korean bank and securities accounts may therefore need to be included.

Q6. Are Korean expatriates exempt from U.S. Social Security and Medicare tax?

Not automatically. Under the U.S.–Korea Social Security Agreement, certain employees temporarily assigned from Korea to the United States may remain covered by the Korean system if the applicable requirements are satisfied. A Certificate of Coverage may be required to document the applicable coverage.

Q7. What happens when an expatriate returns to Korea?

The year of departure may require special consideration of U.S. tax residency, the timing and source of income, state residency, and continuing U.S. reporting obligations.

Q8. Can Dow & Sohn CPAs handle both expatriate tax returns and the company’s U.S. tax matters?

Yes. Dow & Sohn CPAs supports both Korean expatriates and the U.S. subsidiaries of Korean companies. We provide individual expatriate tax filings alongside corporate tax, accounting, and cross-border advisory services, coordinating the expatriate’s tax matters with the broader requirements of the U.S. operation.