South Korea Crypto Tax Calculator
Compute the South Korean crypto tax due — 20% national + 2% local resident tax = 22% effective on annual gains above ₩2,500,000. Effective-date status: confirm current NTS rule before filing.
Calculation reflects the legislated 22% rate (20% income + 2% local resident tax) on annual crypto gains above ₩2,500,000. Effective date has been REPEATEDLY delayed (2022 → 2023 → 2025 → 2027 in latest cycle); confirm current effective status with the National Tax Service (NTS) before filing. Prior to the law's effective date, crypto gains may not be taxed at the personal level. South Korea separately requires real-name banking integration via 5 licensed exchanges.
How the Korea crypto tax works
22% effective rate. The legislated rule: 20% national income tax + 2% local resident tax (juminzei) on the gain above the ₩2.5M annual threshold. Compared to peer East Asian markets (Japan up to 55%, Taiwan progressive 5-40%), this is moderate.
₩2.5M exempt threshold. Annual cumulative across all crypto disposals. Below the threshold = 0% tax. A small/casual trader who realises ₩2M of gain in a year owes nothing; one who realises ₩3M owes 22% on the ₩500k excess.
Effective-date saga. The rule was passed in 2020 with a 2022 effective date, postponed to 2023, then 2025, then 2027 in the latest cycle. Retail investor lobbying has consistently pushed for delay, while the Ministry of Strategy and Finance pushes for implementation. Check current NTS guidance before assuming the rule is enforced for any given tax year.
What this calculator does NOT do
- Status tracking — confirm current effective date with NTS before filing.
- Loss aggregation rules (TBD pending implementation guidance).
- Cost-basis aggregation across multiple acquisitions (FIFO is expected default).
- Gift / inheritance tax (separate regime, 10-50% depending on amount).
- Foreign-exchange holdings disclosure rules.
Frequently asked questions
How is crypto taxed in South Korea?+
Under the amended Income Tax Act, crypto gains exceeding ₩2,500,000 per year are taxed at 20% national income tax + 2% local resident tax = 22% effective. The exempt amount applies cumulatively across the year — small/casual traders pay 0%. Below the threshold = no tax; above = 22% on the excess. The effective date has been repeatedly delayed (2022 → 2023 → 2025 → 2027 in the latest legislative cycle).
When does Korea's crypto tax take effect?+
Originally scheduled for 2022, then 2023, then 2025, the implementation has been repeatedly postponed under political pressure from retail crypto investors. As of late 2025 the rule is currently scheduled for 2027 implementation, but further delays are possible. Check the National Tax Service (NTS) status before assuming the rule is enforced for your tax year.
What is the 'Kimchi premium' and is it taxable?+
The historic 5-15%+ premium on Korean exchange BTC/ETH over global rates, driven by capital-control friction. The premium itself isn't directly taxable — it's a price phenomenon — but profits from arbitraging Korean exchanges against global rates would be taxable as crypto gains under the same 22% rule. Korea's real-name banking requirement makes Kimchi-premium arbitrage operationally difficult.
Why is South Korean crypto trading concentrated on 5 licensed exchanges?+
Since 2018, South Korea requires real-name verified bank accounts for all crypto trading; only 5 exchanges (Upbit, Bithumb, Coinone, Korbit, Gopax) hold the partnerships needed to provide KRW on-ramp. P2P USDT trading exists but at smaller scale — most retail volume goes through these 5 venues directly.
Are P2P USDT trades in KRW taxable in Korea?+
Yes once the Income Tax Act amendment takes effect. Each USDT/KRW disposal would produce a taxable gain (or loss) at 22% above the ₩2.5M annual threshold. P2P trading is technically legal but heavily restricted by the real-name banking requirement; most users prefer the 5 licensed exchanges.