South Korea Proposes Fourth Crypto Tax Delay to 2029, With New Relief for Losses

Another two years, with changes beyond the start date

South Korea's government has proposed moving its cryptocurrency income tax from January 1, 2027, to January 1, 2029, while introducing a provision that would let investors use losses to reduce taxable profits over the following three years.

Deputy Prime Minister and Finance Minister Lee Hyoung-il announced the plan at the Government Complex Seoul on November 5, 2026. It would be the fourth postponement of a tax established through an Income Tax Act amendment in 2020 and originally scheduled to begin in January 2022.

The proposed delay leaves the headline tax unchanged: a combined 22% on qualifying annual cryptocurrency gains above 2.5 million won. The government instead wants more time to obtain overseas transaction information, settle calculation rules and prepare for wider digital asset legislation.

The National Assembly must amend the Income Tax Act before the delay takes effect. January 1, 2027, remains the statutory starting date until lawmakers approve a change; no parliamentary vote date was announced.

Lee acknowledged the repeated postponements and promised to use the additional preparation period to make the system operational. He said:

We will use the two-year preparation period to ensure implementation proceeds without a hitch in 2029.

For investors, the proposed package involves more than waiting another two years. It would change how losses are counted, move the valuation date for existing holdings to the end of 2028 and, if enacted as planned, put the first annual filing and payment period in May 2030.

For exchanges, the additional time would allow reporting systems to be built around detailed rules that remain unfinished. For the government, the task is to turn another revised deadline into a tax system that can handle transactions both inside South Korea and overseas.

How the deadline moved from 2022 to 2029

South Korea announced its cryptocurrency tax policy in July 2020, and parliament amended the Income Tax Act that December. Investor opposition and concerns about administrative readiness subsequently pushed the starting date back three times.

The latest proposal reverses the government's position earlier in 2026. A Finance Ministry official said in May that implementation would proceed in 2027, and the government retained that deadline in its August tax reform plans.

• December 2020: Parliament established the framework, with taxation scheduled to begin in January 2022.
• Late 2021: Lawmakers postponed implementation to January 2023.
• Later postponements: The starting date moved to January 2025 and then January 2027.
• October 2026: The presidential office supported further consideration of a delay amid concerns about reporting and overseas records.
• November 3, 2026: Ruling Democratic Party lawmakers recommended postponement to 2029.
• November 4, 2026: Democratic Party leader Kim Min-seok formally proposed another delay.
• November 5, 2026: The government announced its support for a January 2029 start.

The announcement followed warnings about unfinished systems in October. Documents obtained by People Power Party lawmaker Park Soo-young showed that none of the five major exchanges had completed its tax system, despite 49 consultations between tax authorities and exchanges since 2022.

Bithumb had said development would require at least six to nine months after detailed requirements were settled. That warning made the practical problem especially pressing: businesses were being asked to prepare for January without a completed set of instructions.

What investors would pay under the unchanged rate

The planned 22% rate consists of 20% national income tax and 2% local income tax. Investors would calculate qualifying annual cryptocurrency income, subtract the 2.5 million won allowance and pay tax on the remainder.

An investor with 5 million won in qualifying annual gains would therefore have 2.5 million won subject to tax. Multiplying that amount by 22% gives a bill of 550,000 won. Someone whose qualifying gains stayed within the annual allowance would owe nothing under this levy.

The calculation starts with income after eligible acquisition costs and expenses, rather than the total value of cryptocurrency held. Under the existing framework, gains and losses from qualifying transactions can be combined within the same calendar year.

The annual allowance would remain 2.5 million won under the announced proposal. Calls for a larger deduction and wider changes to investment taxation are part of the coming discussion, rather than changes already adopted.

Why overseas trading is central to the delay

The Finance Ministry says exchanges of cryptocurrency transaction information with the United States are expected to begin in 2029. Officials argue that starting the tax earlier could leave the domestic market at a disadvantage because overseas activity would be harder for South Korean authorities to track.

The relevant international system is the Organisation for Economic Co-operation and Development's Crypto-Asset Reporting Framework, known as CARF. It provides a framework for collecting information about cryptocurrency users and transactions and sharing it between participating tax authorities.

A South Korean resident may trade through domestic exchanges, overseas platforms and personal wallets. Tax officials need records that allow them to connect those transactions and calculate income accurately. Access to domestic exchange records alone leaves gaps when assets move abroad.

The government plans to improve its ability to secure overseas transaction information during the proposed preparation period. Its stated aim is to apply the tax more consistently across investors using different platforms.

Hong Kong is following an earlier reporting timetable. Under its approved CARF legislation, cryptocurrency service providers are to start collecting user data in 2027, with exchanges of information with partner jurisdictions beginning in 2028. Those dates concern reporting infrastructure, while Seoul's proposal concerns when its gains tax would begin.

How three years of loss relief would work

The proposed loss carryforward would let investors subtract eligible losses from profits earned during the next three years. A loss recorded in 2029 could therefore be used against qualifying gains through 2032.

The existing framework combines gains and losses only within the same year. That can produce a tax bill for someone who earns money in one year after losing more money in the previous year.

Consider an investor who loses 100 million won in the first year and earns 50 million won the next. Without a carryforward, the second year's gain would produce taxable income of 47.5 million won after the allowance, resulting in tax of 10.45 million won at 22%.

With the proposed carryforward, the earlier loss would absorb the following year's 50 million won gain, leaving no tax payable in that example. The investor would still have lost 50 million won across the two years.

The Finance Ministry argues that cryptocurrency's large price swings justify counting eligible losses across several years. The proposal changes the period over which investment results are measured, making an earlier loss relevant to a later tax calculation.

Smaller tax bills, but a boundary for old losses

A second government example shows an investor recording a loss of 10 million won in 2029 and a gain of 20 million won in 2030. Without a carryforward, the taxable amount would be 17.5 million won after the annual allowance, giving a tax bill of 3.85 million won.

Subtracting the earlier 10 million won loss first would leave taxable income of 7.5 million won after the allowance. The tax would fall to 1.65 million won, a reduction of 2.2 million won, or about 57.1%.

Losses realized before the proposed 2029 starting date would be excluded from the carryforward. An investor who sells cryptocurrency at a loss during the period before implementation would therefore be unable to use that loss against gains after the tax begins.

Existing holdings would receive a separate acquisition value rule. Finance Ministry tax policy chief Cho Man-hee explained that assets held before implementation would use the higher of their actual purchase price or their market value at the end of 2028.

That acquisition value is the starting amount subtracted when calculating a later gain. Using the higher figure can reduce the portion of a subsequent sale treated as taxable income. If the revised timetable becomes law, income from transactions in 2029 would first be reported and paid in May 2030.

New transactions need clearer instructions

South Korea's existing statutory framework identifies income from cryptocurrency transfers and lending as miscellaneous income. The planned review would address a market that now includes staking rewards, decentralized finance yields, airdrops and exchanges of one cryptocurrency for another.

Staking can reward holders for helping validate activity on a blockchain. Decentralized finance, often called DeFi, uses blockchain applications to provide services such as lending. An airdrop distributes tokens to recipients. Each can raise practical questions about when income arises and how its value should be calculated.

A January study by the National Assembly Research Service, titled Japan's Virtual Asset Taxation System, identified transaction classification, foreign tax credits and the legal status of stablecoins as issues for South Korea. Staking, for example, may be understood differently depending on whether the reward is payment for lending assets or for validation work.

Ahn Sung-hee, a professor at Catholic University, described the tension between simpler filing and accurate classification:

Taxing transfers and lending together could improve filing convenience, but there are aspects that do not fit the tax law's taxation framework.

Exchanges also need instructions for combining transaction histories across platforms and wallets, establishing acquisition costs and processing different transaction types. Those details determine what software must record and what investors must submit.

What Japan's approach adds to the debate

Japan's experience gives South Korean lawmakers concrete examples of transaction rules. The National Assembly Research Service study describes Japan's treatment of mining, lending, exchanges between cryptocurrencies and hard forks, when a blockchain splits and creates a new coin.

Under the Japanese treatment described in the study, mining income is valued at the market price when acquired, with necessary expenses deducted. Coins received through a hard fork are untaxed when received and have an acquisition cost of zero for a later sale.

Japan's reform program also links a proposed shift to separate taxation at 20.315%, matching stocks, with financial regulation. The lower rate is tied to the relevant law taking effect and applies to designated assets handled by licensed exchanges. Loss carryforwards are also being pursued.

South Korea faces a further issue when income earned abroad has already been taxed overseas. The research service identified a potential restriction under Article 57 of the Income Tax Act on claiming foreign tax credits for cryptocurrency income taxed separately as miscellaneous income.

Options under discussion include allowing investors to choose comprehensive taxation, which combines eligible income for tax calculation, or treating foreign tax paid as an expense. Both approaches seek to account for taxes paid abroad when calculating the domestic bill.

Stablecoins, which aim to maintain a steady value against an asset such as a currency, also require legal definitions. Japan's 2023 Payment Services Act revision defined them as electronic payment methods and restricted issuers to banks, trust companies and funds transfer service providers. South Korea's planned digital asset legislation would address rules for exchanges and stablecoin issuers alongside investor protection.

Young investors and competing ideas of fairness

People in their 30s or younger accounted for 44.1% of cryptocurrency account holders at the end of June, according to the Financial Supervisory Service. Their large share helps explain the political attention given to opposition among younger investors.

The debate has also been shaped by stock taxation. South Korea postponed and later abolished its planned financial investment income tax, while qualifying major shareholders remain subject to tax on share disposal gains. The cited KOSPI ownership threshold is 5 billion won per stock.

Cryptocurrency investors have objected to taxing relatively small gains while many ordinary stock investors face different treatment. Repeated cryptocurrency tax delays have also drawn objections from those pointing to taxes still paid by qualifying major shareholders.

A study commissioned by the National Assembly Budget Office in August proposed raising the cryptocurrency allowance to at least 6 million won, compared with the planned 2.5 million won. Its argument included the costs of filing, payment and administration for small tax bills.

Industry representatives also want investors to be able to offset cryptocurrency losses against gains from other investments, including stocks. The government plans to discuss the allowance and broader loss treatment during the review. Those proposals would go beyond allowing cryptocurrency losses to offset future cryptocurrency gains.

What the government plans to do next

A working group involving specialists, industry representatives and relevant ministries is to prepare improvement measures during the first half of 2027. Detailed taxation standards are planned for the first half of 2028.

The government plans to submit broader tax system amendments during the National Assembly's regular session in 2027. Lee has also said the immediate postponement and loss carryforward should be handled during the current regular session, separating the urgent change to the starting date from later work on the detailed framework.

The Finance Ministry will work with the Financial Services Commission on digital asset legislation. Licensing, investor protection and the legal treatment of new products will affect the transactions that tax rules must cover.

The proposed sequence is therefore concrete: secure parliamentary approval for the delay, develop improvements in 2027, publish detailed standards in 2028 and begin taxation in 2029, with the first annual returns in May 2030. Exchanges would then have published requirements against which to build and test their systems.

After three previous postponements, the government's credibility depends on completing those steps as well as setting another date. The unresolved work includes overseas data access, transaction classification, acquisition values and the treatment of losses, all of which affect an investor's final bill.

Key Points

• South Korea proposes moving its cryptocurrency income tax from January 2027 to January 2029, subject to parliamentary approval.
• The planned rate remains 22% on qualifying annual gains above 2.5 million won.
• A proposed loss carryforward would allow eligible losses to offset cryptocurrency gains over the following three years.
• Losses realized before implementation would be excluded from that relief.
• Existing holdings would use the higher of actual purchase cost or market value at the end of 2028 as their acquisition value.
• The government cites expected information exchanges with the United States in 2029 and unfinished domestic rules as reasons for the delay.
• Improvement measures are planned for the first half of 2027 and detailed standards for the first half of 2028.
• If the package takes effect as planned, the first annual filing and payment period would be May 2030 for income earned in 2029.