South Korea to Tax Crypto From Overseas Exchanges and Private Wallets Starting January 2027

Overview

• The government reaffirmed that the crypto tax takes effect on January 1, 2027 and covers income from domestic platforms, overseas exchanges, and self‑custody private wallets.
• Taxable crypto gains will be treated as miscellaneous other income with a 2.5 million won annual exemption and will face 20% national tax plus up to 2% local tax on amounts above that threshold for a combined top rate of 22%.
• The National Tax Service is building a tax‑source management system and transaction analysis tools to detect unreported crypto income and plans to use existing overseas account reporting and the OECD’s Crypto‑Asset Reporting Framework to obtain cross‑border data.
• Officials have not finalized rules for complex activities such as staking rewards, lending, airdrops, and hard forks because they still need to set taxable event timing and valuation methods.
• Political and enforcement risks remain: opposition lawmakers have introduced measures to delay or repeal the tax and authorities have not published a reliable revenue forecast, while taxpayers face practical compliance challenges if they hold assets in many private addresses or move activity into offshore or decentralized venues.