
US Dividend Tax in Korea: 15% Withholding and the 20M Won Line
US dividends lose 15% at source and nothing more in Korea — lighter than the 15.4% on Korean dividends. The real split comes at 20 million won of annual financial income.

US dividends lose 15% at source and nothing more in Korea — lighter than the 15.4% on Korean dividends. The real split comes at 20 million won of annual financial income.

A cash dividend is taxed at 15.4% on arrival; a share cancellation shrinks the share count with no tax at all. Here is the arithmetic behind a 3.3% cancellation lifting EPS by 3.4%, plus a side-by-side after-tax table.

Only financial income above 20 million won gets rolled into comprehensive taxation, but health insurance starts counting at 10 million won. A 1-million-won difference can create 480,000 won a year in premiums.