South Korea is considering postponing its tax on crypto gains for a fourth time, moving it from January 2027 to 2029, according to Newsis. The government worries the burden would fall mainly on users of domestic exchanges, since the US will only start exchanging trading data under the OECD’s CARF framework in 2029. The tax would apply a 20% rate, or 22% with local tax, above a 2.5 million won allowance. A delay needs parliament to amend the law, with a decision expected by early December.

What it means: The Korean debate shows how much crypto taxation depends on international information exchange. If a country taxes only people using domestic platforms while trades on foreign platforms stay invisible, investors simply move and the tax raises little. That is why the OECD CARF framework and the matching EU directive, DAC8, matter so much. In the European Union DAC8 has applied since 1 January 2026: crypto asset service providers collect data on their customers’ transactions and pass it to tax authorities, which share it with each other, with the first reports due in 2027. This means the Greek tax authority will have an increasingly complete picture of trades by Greek tax residents, including on platforms in other member states. For Greek investors and businesses holding crypto assets, the practical step is to keep full records of purchases, sales and swaps with dates and values, so gains and losses can be documented. The tax treatment of crypto gains in Greece still needs clearer guidance, so advice from an accountant remains essential.

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