Many Korean nationals and former Korean residents who are domiciled in the United States continue to own significant Korean assets, including real estate, privately held businesses, stock in Korean companies, and financial assets maintained with Korean financial institutions.

Although these individuals may have lived in the United States for many years, Korean estate and gift tax considerations often remain highly relevant. The continued ownership of Korean assets can expose families to substantial Korean transfer taxes when wealth is transferred during life or at death. Depending on the facts and circumstances, Korean estate and gift tax may apply to Korean situs assets and, in certain cases, may extend beyond those assets under Korean tax law.

Korea's estate and gift tax regime imposes marginal tax rates of up to 50%, making it one of the highest transfer-tax systems among OECD countries. Without proper planning, these taxes can significantly reduce the wealth ultimately transferred to future generations and create substantial liquidity challenges for heirs.

The United States currently provides a historically high federal estate and gift tax exemption, exceeding $15 million per individual. However, Korean assets owned by individuals who are domiciled in the United States are often subject to both the U.S. and Korean transfer tax systems. Such assets are generally included in the individual's U.S. gross estate and taxable gift calculations and may also be subject to Korean estate or gift taxation. Consequently, significant Korean estate or gift tax liabilities may arise even when little or no U.S. estate or gift tax is payable due to the currently available federal exemption amount.

We frequently encounter situations in which families are forced to sell or liquidate valuable assets simply to generate the cash necessary to satisfy Korean estate or gift tax obligations. In many cases, these outcomes could have been mitigated or avoided through advance planning. Unfortunately, by the time a taxable transfer occurs, many planning opportunities have already been lost.

The interaction between U.S. and Korean estate and gift tax rules can be highly complex. Issues involving domicile, residency, asset situs, valuation, treaty provisions, foreign tax credits, and the coordination of two separate tax systems often require careful analysis. As a result, advice from professionals who are not experienced in cross-border transfer tax matters may be incomplete or lead to unintended consequences.

Proactive cross-border estate planning can help preserve family wealth, improve liquidity, coordinate U.S. and Korean transfer-tax consequences, and reduce the risk of a forced sale of family assets. Planning opportunities are generally most effective when implemented well in advance of a contemplated transfer, liquidity event, or succession plan.

If you or your family own significant Korean assets, we encourage you to consult with qualified professionals who specialize in U.S.-Korea cross-border estate and gift tax planning. Thoughtful planning today can help preserve family wealth, maximize the assets ultimately transferred to future generations, and provide your family with greater financial security and flexibility.