South Korea plans new crypto tax guidelines next month

South Korea's National Tax Service (NTS) has announced plans to issue cryptocurrency tax guidelines in November 2026, ahead of the country's scheduled 22% tax on qualifying digital asset gains beginning January 1, 2027.

• South Korea's tax authority expects to publish cryptocurrency taxation guidelines in November before implementation begins.
• Cryptocurrency income taxation is scheduled to begin January 1, 2027, following three previous implementation delays.
• Investors face a combined 22% tax on qualifying annual cryptocurrency gains exceeding 2.5 million won.
• Tax officials are reviewing how staking, airdrops, hard forks, and decentralized finance transactions should qualify.
• First cryptocurrency income tax returns are expected in May 2028 for taxable transactions during 2027.

During an October 13 parliamentary audit, NTS Commissioner Lim Gwang-hyeon told lawmakers that preparations were underway to publish detailed taxation standards next month. The announcement followed questions about how authorities would calculate income from staking, airdrops, hard forks and decentralized finance (DeFi). Lim said the tax agency was working with cryptocurrency exchanges and the Ministry of Finance and Economy to prepare the necessary systems.

During the National Assembly's Finance, Economy and Planning Committee audit, People Power Party lawmaker Lim I-ja questioned whether authorities had established clear taxation standards for different cryptocurrency activities. She raised concerns about the approaching implementation date and the lack of detailed guidance for certain transactions.

Responding to the questions, the tax commissioner said the agency was preparing to issue its guidance around November. He explained that tax treatment would depend on the economic nature of transactions, particularly whether an activity involves transferring or lending digital assets.

The clarification concerns transactions that do not fit neatly into conventional cryptocurrency buying and selling. Staking rewards, token distributions and assets created through blockchain upgrades can involve different ownership and income arrangements. The NTS has not published final standards covering every category.

According to Lim's testimony, airdrops and hard forks may fall within the tax framework when their economic characteristics meet the relevant legal requirements. He said additional consultation with the Ministry of Finance and Economy was necessary for some activities, including staking.

Committee chairman Cho Seung-rae requested that the authorities coordinate their preparations and report their notification plans during the comprehensive parliamentary audit. He said the government should prepare for implementation unless the National Assembly formally approves another postponement.

The proposed November guidance has not yet been issued. Officials have not announced an exact publication date or confirmed whether all outstanding questions will be addressed in the first release.

South Korea's existing cryptocurrency tax framework is scheduled to take effect on January 1, 2027. It applies to qualifying income from transferring or lending digital assets, with an annual basic deduction of 2.5 million won.

The National Tax Service explains that qualifying cryptocurrency income will be treated as separately taxed other income under the Income Tax Act. The national tax rate is 20%, bringing the combined rate to 22% when the additional local income tax is included.

For investors, taxable income is calculated after accounting for qualifying acquisition costs and transaction expenses. Annual gains and losses are combined before the basic deduction is applied. The remaining taxable amount is subject to the applicable rate.

The tax authority's published guidance provides special treatment for digital assets acquired before the rules begin. Their acquisition value will generally be determined using the higher of the original acquisition cost or the applicable market value immediately before implementation.

South Korea has postponed cryptocurrency taxation three times since lawmakers first approved the framework in 2020. Its initial 2022 implementation date moved to 2023, then 2025, before the National Assembly approved another two-year delay in December 2024.

Despite further objections, the government retained the January 2027 schedule in its 2026 tax reform plans. Earlier plans to introduce the 22% cryptocurrency tax in 2027 established that the first annual returns would cover income earned during 2027.

During the October 13 hearing, lawmakers raised concerns about whether cryptocurrency exchanges could provide the information required to calculate taxable gains. Questions focused on transaction records, customer data and the treatment of activity occurring outside regulated domestic trading platforms.

Lim said the NTS was holding working-level discussions with cryptocurrency exchanges to prepare the reporting systems. He explained that the tax authority was responsible for much of the technical and administrative preparation, while certain policy questions required coordination with the finance ministry.

The exchanges discussed during the hearing included Upbit, Bithumb, Coinone, DigitalX and Gopax. Lawmakers questioned whether their systems could produce sufficiently consistent transaction records before the January deadline.

The discussions follow earlier concerns about tax reporting for overseas exchanges and private wallets, which fall within the planned tax framework when they generate qualifying income. Authorities have acknowledged that collecting complete records from such transactions remains difficult.

Lim said the Organisation for Economic Co-operation and Development's Crypto-Asset Reporting Framework (CARF) would improve the exchange of transaction information between tax authorities. However, he acknowledged that international reporting arrangements would not capture every cryptocurrency transaction.

Transfers between privately controlled wallets remain a particular challenge. Transactions can occur without involving a domestic exchange that collects customer information or reports activity directly to Korean authorities.

The tax commissioner said authorities were continuing to discuss cooperation and transaction monitoring with their international counterparts. He did not provide a reliable estimate of how many cryptocurrency investors would become taxpayers or how much revenue the government expected to collect.

Lawmakers continue debating the January 2027 deadline

Opposition to South Korea's cryptocurrency tax has continued despite the government's preparations. Lawmakers and industry representatives have questioned whether tax authorities can implement the rules consistently across domestic exchanges, foreign platforms and decentralized financial services.

A previous petition seeking another two-year cryptocurrency tax delay gathered the 50,000 signatures required to trigger parliamentary consideration. The petition called for more time to develop reporting systems and establish clear standards before implementation.

Separately, the People Power Party has pursued legislation seeking to delay or abolish the planned tax. An August proposal sought to postpone implementation until January 2030, while another measure called for removing the cryptocurrency income tax provisions entirely.

During an October 6 parliamentary hearing, Finance Minister Lee Hyoung-il said the ministry would consider concerns raised by lawmakers, industry representatives and other interested parties. He acknowledged difficulties in estimating the amount of revenue the proposed system would generate.

None of the proposals has resulted in a confirmed change to the January 2027 implementation date. The current legal schedule therefore remains in place while lawmakers continue reviewing the tax framework.

The NTS expects investors to begin filing returns for taxable cryptocurrency income in May 2028, covering the 2027 tax year. Under its published reporting rules, qualifying residents must declare their previous year's income between May 1 and May 31.

During the October 13 hearing, Lim said the tax authority would use information received after implementation to begin verifying returns filed in May 2028. He did not provide final estimates for taxpayer numbers or expected government revenue.

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