Korea taxes overseas stock gains at 22% after an annual deduction of 2.5 million won. A 10 million won gain costs 1.65 million won — an effective rate of 16.5%. The settlement date, not the trade date, decides the tax year.
GOOGL is Alphabet's Class A stock with one vote per share; GOOG is Class C with none. Returns are virtually identical — here is how the founders' 52.7% voting lock and the small price gap actually work.
Same index, different won returns — the (H) label determines it. Unhedged products reflect the exchange rate; hedged ones cancel it with forwards but charge a premium equal to the Korea-US rate gap. Scenario tables and account-type criteria help you decide.
The key to overseas stock capital gains tax is the annual 2.5 million won basic deduction. Designing your sell timing and the order of loss offsets can legally reduce your tax burden. This guide walks through the calculation structure and the traps that are easy to miss.