Understanding Dual Contributions: Korean National Pension vs. U.S. FICA
Understanding Dual Contributions: Korean National Pension vs. U.S. FICA Navigating social security systems across borders can be confusing—especially for employees working between Korea and the U.S. A recurring question is: Can someone pay into both Korea’s National Pension and U.S. FICA (Social Security and Medicare taxes) at the same time—and what happens if they do? This post breaks down how the Korea–U.S. Totalization Agreement works, what “coverage” means, and the consequences of dual contributions. 1. The Totalization Agreement at a Glance 🇰🇷🇺🇸 Since 2001, the Korea–U.S. Totalization Agreement has coordinated social security coverage between the two countries. Its primary goal is to: Prevent double taxation of social security contributions on the same income during the same time period Protect future benefit rights for cross-border workers Key principles: At any given time, only one country’s social security system applies to your wages C...