Share Swap May Trigger 22% Tax on Top Foreign Stock for Koreans
South Korean investors with Tesla stock – the most popular US stock in Korea – could face a significant tax burden if Elon Musk proceeds with a potential Tesla-SpaceX merger. A share swap could trigger a 22% capital gains tax, even without selling shares.
Speculation about a merger intensified after SpaceX’s recent integration with AI startup xAI, prompting discussions about Musk potentially combining the new entity with Tesla to accelerate his artificial intelligence initiatives.
However, the primary concern for Korean shareholders isn’t the business strategy but the potential tax implications.
If Tesla and SpaceX merge into a new holding company, existing Tesla shares would likely be exchanged for shares in the new entity. Under Korean tax law, this type of share swap involving foreign stocks is treated as a “deemed sale” and subsequent “repurchase.”
This classification could immediately trigger a 22% capital gains tax on profits exceeding 2.5 million won (approximately $1,730), regardless of whether investors actually sell their shares.
While gains beyond that threshold would only be taxed upon actual sale, investors would essentially be required to prepay a portion of their capital gains tax, creating a potential liquidity issue.
Korean tax law allows for tax deferral in similar corporate restructuring scenarios involving domestic stocks. However, these provisions don’t extend to overseas investments.
“Consequently, investors who haven’t sold their shares could face immediate tax bills equivalent to 22% of their unrealized gains,” stated an online petition submitted to the National Assembly. The petition calls for a tax deferral system for overseas stock investments. “This could create market distortions, potentially forcing long-term holders to sell shares simply to cover their tax liabilities.”
As of Friday, Korean investors hold approximately $26.07 billion in Tesla stock, making it the most widely held foreign stock in the country, according to the Korea Securities Depository. Nvidia, Alphabet, Palantir, and Apple follow in popularity.
Yim Eun-young, a researcher at Samsung Securities, warned that the current tax rules could generate unintended market volatility.
“Even if investors don’t sell their shares, the law treats the transaction as a sale and repurchase, potentially triggering a 22% capital gains tax,” she explained. “If this tax is implemented, some investors may be forced to sell shares to cover the tax burden, leading to price fluctuations.”
Korean investors collectively own about 1.7% of Tesla, which currently has a market capitalization of approximately $1.5 trillion.
A comparable situation occurred in May when Rocket Lab USA was reorganized under Rocket Lab Corp. Following initial confusion among brokerage firms, the Finance Ministry and the National Tax Service determined that the transaction constituted a taxable disposition without the option of tax deferral.
In the absence of official confirmation of a Tesla-SpaceX merger, local brokerages are hesitant to speculate on how the transaction will be processed.
“It’s difficult to comment at this stage because nothing has been finalized,” a brokerage official stated. “However, it’s true that the tax treatment differs for overseas stocks.”
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