Unraveling the Complexities of U.S. Totalization Agreements for U.S.-Outbound Assignees
February 2025 | by Brent Jackson, KPMG LLP, Washington, D.C. (KPMG LLP in the United States is a KPMG International member firm)
International assignments present unique challenges, particularly concerning social security coverage and dual taxation. The latest issue of Mobility Matters explores how U.S. Totalization Agreements play a pivotal role in managing these issues. These bilateral agreements between the U.S. and thirty countries are designed to prevent employees from being taxed twice on the same earnings and help manage social security obligations effectively.
A key aspect of these agreements is the "detached worker rule," which allows employees to maintain home-country social security coverage for assignments expected to last up to five years. When assignments extend beyond this period, companies can explore several strategies: requesting extensions, implementing cool-down periods, considering third-country transfers, or localizing employees to pay host country social security taxes. Each option has different implications for tax liability and social security benefits, underscoring the importance of strategic planning.
Effectively utilizing totalization agreements can significantly reduce tax burdens and protect future retirement income. Proper planning helps avoid dual taxation and increased tax liabilities, allowing organizations to optimize international assignments while safeguarding employees' financial well-being. To learn more, read the full article.
Unraveling the Complexities of U.S. Totalization Agreements for U.S.-Outbound Assignees
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