South Korea’s National Tax Service Ruling on Cryptocurrency Accounts
On August 28, 2023, South Korea’s National Tax Service (NTS) determined that residents are still required to report cryptocurrency accounts associated with bankrupt foreign exchanges, even when they are unable to trade or withdraw funds. This ruling was prompted by an inquiry from a Korean resident affected by the bankruptcy of an overseas cryptocurrency exchange in November 2022, where the account holder no longer had access and had entered the exchange’s asset distribution process.
Reporting Requirements for Cryptocurrency Accounts
The taxpayer, who was a creditor of the failed platform, began receiving partial distributions via a domestic foreign currency account. Despite the inaccessibility of the original account, the NTS ruled that it still needed to be reported, as it was opened with a foreign virtual asset service provider specifically for trading digital currencies. This ruling emphasizes the need to disclose such accounts, rather than determining any tax obligations tied to the assets.
Under South Korean regulations, individuals and domestic companies must report overseas financial accounts when the total balance surpasses 500 million won (approximately $350,000) at any month’s end within a given calendar year. Furthermore, the assessment is cumulative; thus, balances from various qualifying accounts are combined to check against this reporting threshold.
The reporting process, which requires taxpayers to submit information in June of the following year, includes details about the foreign financial institution, account specifics, and total reportable balances. Beginning with the 2023 reporting cycle, digital assets have been included in the requirement to disclose foreign financial accounts, alongside more traditional banking accounts like deposits and securities.
Self-Custody Wallets and Reporting Obligations
It’s essential to note that self-custody wallets do not adhere to the same rules, since they are not considered accounts with foreign virtual asset service providers. This distinction was highlighted in previous reports by crypto news sources regarding decentralized wallets being excluded from reporting obligations under NTS guidelines. The latest ruling clarifies that assets held in an insolvent exchange still count toward reporting requirements, thus a customer maintains a reportable account even when they lose standard access to their funds.
Challenges in Bankruptcy Proceedings
However, the NTS’s summary of this legal interpretation lacks explanations on how taxpayers should evaluate disputed or partially recoverable claims during bankruptcy proceedings. For instance, while an exchange might show a customer’s initial token balance on its platform, the actual disbursed value may differ significantly. The ruling came from a taxpayer already receiving partial distributions but does not imply that every reported account balance will reflect the exact amount regained through bankruptcy processes.
In the wake of such bankruptcies, customers are advised to keep meticulous records of their account balances, exchange statements, and documentation related to bankruptcy claims. This documentation may be crucial in clarifying the amounts originally held in accounts versus what can be retrieved following a bankruptcy. Customer experience in cases like the FTX bankruptcy, where the repayment process for creditors spans years, underscores this necessity.
Trends in Overseas Digital Asset Disclosure
Additionally, the NTS reported that Korean residents disclosed a total of 10.5 trillion won in overseas digital assets during the 2026 disclosure cycle—a 5.4% decline from the previous year. However, individual holdings rose to 9.8 trillion won, while corporate holdings saw a drastic fall of 61.1% to about 700 billion won, a shift attributed to general decreases in asset prices. In total, South Korea reported 107.1 trillion won in overseas financial accounts this same cycle, with a 9.1% rise in the number of individuals and companies reporting such accounts, totaling 7,484.
Future Tax Implications
Importantly, this disclosure requirement exists separately from South Korea’s impending tax on cryptocurrency gains, which is scheduled to take effect on January 1, 2027, at a combined rate of 22%. This tax will apply to income from both overseas exchanges and private wallets. For residents whose overseas account balances surpassed the threshold in 2026, disclosures will have to be filed in June 2027.
Given these developments, customers with accounts on bankrupt exchanges should retain records, including notices, approvals, and payment documentation, to clarify discrepancies between reported balances and actual recoveries. As South Korea gears up for enforcing the 2027 crypto income tax, the NTS is also enhancing its capability to trace wallet transactions and planning to cooperate with international jurisdictions to share crypto transaction data under the OECD’s Crypto-Asset Reporting Framework, facilitating the identification of previously undeclared foreign exchange accounts.
