South Korea confirms 22% crypto tax will cover private wallets, foreign exchanges

South Korea has confirmed that taxable crypto income earned through overseas exchanges and private wallets will fall under its planned 22% digital asset tax when the regime takes effect on Jan. 1, 2027.

Digital Asset reported on Aug. 20, citing government responses submitted to People Power Party lawmaker Kim Sang-hoon, that the Ministry of Economy and Finance and the National Tax Service said the location or custody method of a digital asset would not determine whether income from its transfer or lending is taxable.

Under the current framework, income from digital assets will be classified as other income, with an annual basic deduction of 2.5 million won. Income exceeding that threshold will face a 20% national tax, rising to a maximum combined rate of 22% after local income tax.

The government also maintained that the tax should take effect on schedule next year, even as the People Power Party continues to call for its abolition or another delay.

Private wallet crypto income will remain taxable

The National Tax Service said income earned by South Korean residents through the transfer or lending of digital assets would remain taxable regardless of whether the assets were held on an overseas exchange or in a private wallet.

The Finance Ministry gave a similar response, saying the tax treatment does not depend on whether the income originated domestically or overseas. Transactions made through private wallets will also be treated under the same principle.

The position separates an investor’s tax liability from the government’s ability to obtain transaction records. Self-custody may make transaction monitoring more difficult, but according to the tax agency, it does not remove the obligation to report taxable income.

South Korea has previously treated self-custodied assets differently for a separate reporting requirement. In January 2024, crypto.news reported on decentralized wallets that the NTS did not consider assets held in non-custodial wallets such as MetaMask to be subject to overseas financial account reporting because an overseas wallet provider does not control the assets.

The latest government response concerns taxation of income generated from the assets themselves, meaning the two rules cover different obligations.

Tax authorities acknowledged that enforcing the rule for private wallets could prove difficult because users can create large numbers of addresses without relying on a centralized intermediary.

The NTS said practical limits remain in identifying every unreported transaction conducted through private wallets. To address the issue, the agency plans to introduce transaction tracking and analysis programs as part of efforts to reduce gaps in tax enforcement.

Self-custodied crypto has already become a separate enforcement issue for Korean authorities. In July, tax officials proposed changes to the Criminal Procedure Act to establish procedures for seizing digital assets controlled through private keys, including warrant requirements and court-supervised wallets for storing seized assets.

Overseas crypto exchanges will be tracked through reporting systems

For crypto held or traded through foreign platforms, the NTS plans to obtain information using South Korea’s overseas financial account reporting system and the Crypto-Asset Reporting Framework, or CARF.

CARF was developed by the Organisation for Economic Co-operation and Development to support automatic exchanges of crypto transaction information between participating tax jurisdictions. The framework is designed to give tax authorities access to information that may otherwise remain outside domestic reporting systems.

South Korea has also been increasing oversight of cross-border crypto activity through other rules. In May, lawmakers approved overseas transfer rules that require businesses handling cross-border digital asset transfers to register with the finance minister.

The legislation created a virtual asset transfer service category covering businesses that move digital assets between South Korea and foreign jurisdictions through purchases, sales or exchanges. Crypto exchanges, custodians and other businesses providing qualifying transfer services can fall within the registration regime.

Government data has shown why overseas platforms and private wallets have become important to regulators. Financial Services Commission figures covering the second half of 2025 showed that South Korean exchanges recorded substantial crypto outflows as assets moved to foreign platforms and self-custody, with outflows reaching $60 billion during the period.

South Korea crypto tax remains set for January 2027

The Finance Ministry reiterated that digital asset taxation should begin in 2027 under the basic tax principle that income should be taxed where it arises.

Officials said they would continue reviewing detailed implementation standards and tax administration procedures to make sure the system is ready for the scheduled start.

The NTS has completed development of a tax-source management system and is building an integrated analysis system to support enforcement, according to the responses submitted to Kim’s office.

Preparations have also involved the country’s major domestic trading platforms. In May, crypto.news reported on tax preparations that the NTS was working on detailed guidance with Upbit operator Dunamu, Bithumb, Coinone, Korbit and Gopax. The guidance was expected to address transaction records and other data needed to calculate taxable digital asset income.

Under the current rules, the tax will apply to income generated from Jan. 1, 2027. The first full filing period for affected investors is expected in May 2028 for income earned during the previous year.

The 2027 date followed several delays to South Korea’s crypto tax regime. The tax was introduced through amendments to the Income Tax Act but was repeatedly postponed as lawmakers debated reporting infrastructure, investor burdens and the size of the basic deduction.

Political opposition has continued ahead of implementation. The People Power Party introduced legislation in March seeking to abolish the planned tax, arguing that applying the levy to digital assets while other forms of investment income receive different treatment creates an unfair burden for crypto investors.

A separate public petition calling for repeal later exceeded 50,000 signatures, triggering a National Assembly committee review in May. The petition challenged the 2.5 million won deduction and argued against taxing crypto investment gains while South Korea does not impose the same system on gains from stocks and bonds.

The government, however, has continued preparing for implementation, while no clear opposition to the scheduled start has emerged from the ruling party.

Staking and airdrop tax rules are still under review

Not every form of crypto income has received a final tax treatment.

The Finance Ministry and NTS said they were still reviewing how the tax framework should apply to digital assets obtained through staking, lending, airdrops and hard forks, taking into account the different characteristics of each activity.

Crypto distributed free of charge by an exchange could already face tax in some circumstances. Authorities said assets qualifying as goods or prizes under the Income Tax Act may be taxed as other income.

Such classifications could become important because crypto income can arise without a conventional asset sale. Staking rewards, protocol distributions and assets created through chain splits can involve different acquisition dates and cost bases, requiring separate standards for determining when taxable income arises and how it should be valued.

For now, the government has not provided an estimate for how much revenue the digital asset tax could generate. Both the Finance Ministry and NTS told Kim’s office that producing a reasonable estimate or projection of expected tax revenue remains difficult.