Money in cryptocurrency flows across borders faster than regulators can build dams. From 3 December 2026, South Korean exchanges are required to report daily on cross-border transfers of digital assets and monthly on the balances in the accounts of 1,27 million users who have sent funds abroad at least once since July 2024. The data will go to the Bank of Korea and the National Tax Service, which will make it possible to track flows in real time.
This measure is part of an attempt to close loopholes ahead of the possible introduction of a tax on income from crypto assets. A rate of 22 percent on profits above 2,5 million won was planned from January 2027, but a fourth postponement to 2029 looks increasingly likely. The reason is the absence of automatic data exchange with the United States under the CARF framework: America will join only in 2029, and without it, collecting tax from those who trade on foreign platforms risks becoming unequal.
The government and legislators are weighing fairness: users of local exchanges will come under tighter scrutiny than those who move funds abroad. Monthly reports on balances and flows are meant to level the playing field by passing information to customs, financial supervision and the intelligence unit. However, experts note that without global coordination such efforts resemble an attempt to carry water in a sieve.
The hidden incentives are obvious: the budget needs revenue, and public pressure is growing — petitions to postpone or abolish the tax have already gathered tens of thousands of signatures. At the same time, regulators are preparing a basic law on digital assets, including rules for stablecoins. Reporting from December will be the first practical step toward transparency, but its effectiveness depends on whether data can be synchronized with the world's largest market.
Imagine a household budget: if a neighbor sees all your transfers to foreign accounts and you do not see his, then you will also pay taxes differently. South Korea is trying to correct precisely this imbalance by strengthening domestic oversight. In all likelihood, the monthly FX1021 forms will become routine practice, and the tax service will gain a tool for more accurate calculation of income.
Ultimately, the new reporting is not merely bureaucracy but a signal: crypto assets are ceasing to be invisible to the state, even if the full tax is still in question. This changes the rules of the game for investors accustomed to the relative anonymity of cross-border transactions.
