South Korea cryptocurrency tax guide

What this guide covers

South Korea does not currently tax individual crypto gains — that's the central fact this guide exists to communicate clearly. This guide covers the current status of South Korea's crypto income tax for the 2025 tax year, based on secondary reporting of the legislative postponement history. nts.go.kr itself wasn't directly fetched in this research pass. This is educational information, not individualized tax advice.

Tax treatment of cryptocurrency

South Korea legislated a specific crypto income tax regime, originally intended to take effect in January 2022. It's been postponed three times since — November 2021, December 2022, and December 2024 — and is now scheduled to begin in January 2027. Reporting from a 2026 tax-law conference notes that a research institute hasn't ruled out a fourth postponement, given that core gaps in the taxation framework remain unresolved even after three delays. This guide doesn't treat the January 2027 date as certain.

Common taxable events

• Under the LEGISLATED-BUT-NOT-YET-EFFECTIVE regime (Income Tax Act Article 21(1)(27)): gains from transferring or lending crypto-assets are classified as miscellaneous income (기타소득).
• This guide does not list further activity-specific treatment (mining, staking, airdrops) because the operative regime itself is not yet in force — detailed rules may still change before the scheduled effective date.

Potentially non-taxable events

• Any individual crypto gain, as of the 2025 tax year — not currently taxed under this specific regime, because its effective date has been postponed to January 2027. This is the single most important fact for South Korea in this knowledge base. Don't assume the figures below apply to 2025 income.

Tax rates and thresholds

These figures describe a law that hasn't taken effect, and could change again before any eventual 2027 (or later) start — this guide doesn't treat them as currently operative. The legislated regime is reported to apply a basic annual deduction of KRW 2.5 million, with gains above that taxed at a reported 22% rate including local tax. You'd self-report and pay during the following year's May comprehensive income tax filing period, once the regime takes effect.

Cost basis and calculation

Not applicable under current law, since the tax is not yet in effect. Once operative, cost-basis mechanics would need to be confirmed directly against the NTS's own guidance closer to the effective date.

Reporting and compliance

• No crypto-specific reporting obligation currently applies to individual gains under this regime, since it has not taken effect.
• This guide does not address other, unrelated reporting obligations (e.g., foreign account reporting) that might independently apply to crypto holdings.

Residency and cross-border issues

Not resolved in this pass, given the primary regime itself is not yet in effect. Confirm current residency rules directly with the NTS closer to any effective date.

Example

This example is hypothetical, for illustration only, and describes the legislated but not yet effective regime — it doesn't apply to the 2025 tax year, since the regime has been postponed to January 2027 at the earliest. If the tax were in force, a resident with KRW 10 million in crypto gains in a year would have the first KRW 2.5 million deducted, leaving KRW 7.5 million taxed at a reported 22% — roughly KRW 1.65 million in tax.

Official resources

• National Tax Service (NTS): https://www.nts.go.kr/

Limitations and review information

Tax year covered: 2025. Last verified: October 10, 2026. Known verification gap: nts.go.kr itself was not directly fetched; this guide relies on a single detailed secondary report of a 2026 tax-conference discussion. Given the postponement history (three delays so far), this guide should be re-verified closer to any future effective date rather than assumed current. This is educational information only, not individualized tax advice — consult the NTS or a qualified Korean tax professional for your specific situation.