South Korea Crypto Tax

Section 1 -- Quick Reference

Quick Reference

Field	Value
Country	Republic of Korea (대한민국)
Tax	Income Tax on Virtual Asset Income (가상자산소득세)
Currency	KRW (₩) — all values must be in KRW at transaction date
Tax year	Calendar year (1 January -- 31 December)
Primary authority	Income Tax Act (소득세법), as amended by Act No. 17757 (Dec 2020), further amended Dec 2022 and Dec 2024
Supporting legislation	Virtual Asset Users Protection Act (가상자산이용자보호법, effective Jul 2024); Enforcement Decree of the Income Tax Act
Tax authority	National Tax Service (국세청, NTS)
Filing portal	HomeTax (hometax.go.kr)
Filing deadline	May 1–31 of the following year (종합소득세 신고)
International reporting	CARF (Crypto-Asset Reporting Framework) — Korea begins receiving exchange data 2027; US joins CARF 2029
Validated by	Pending — requires sign-off by a Korean licensed tax accountant (세무사)
Skill version	1.0

CRITICAL STATUS NOTE — Tax Year 2025

Virtual asset income tax is NOT in effect for 2025. The tax was originally legislated in December 2020 for a January 2022 start, but has been postponed three times:

• 2022 → deferred to 2023
• 2023 → deferred to 2025
• 2025 → deferred to 1 January 2027

As of May 2026, the Ministry of Economy and Finance has officially confirmed that the tax will proceed as scheduled from 1 January 2027, rejecting further postponement. The NTS is actively coordinating with the five major exchanges (Upbit/Dunamu, Bithumb, Coinone, Korbit, Gopax) to build the filing and reporting infrastructure.

For tax year 2025: crypto gains are NOT taxable as virtual asset income. This skill documents the framework that will apply from 2027 onwards, plus the rules that currently apply (gift tax, foreign asset reporting).

Conservative Defaults

Conservative Defaults

Ambiguity	Default
Whether tax is in effect for a given year	Check implementation date — NOT in effect before 1 January 2027
Unknown cost basis method	Use moving average for exchange transactions, FIFO for all others
Unknown whether gains exceed ₩2.5M threshold	Compute precisely — do not estimate
Pre-2027 holdings cost basis	Use higher of market price on 31 December 2026 or actual acquisition cost
Unknown residency status	STOP — Korean tax obligations depend on residency
Gift of crypto between related parties	Treat as subject to gift tax NOW (gift tax applies regardless of income tax deferral)

Section 2 -- Classification Rules

2.1 Legal Classification

• Virtual asset (가상자산) — Electronically tradable digital representation of economic value; excludes e-money, prepaid means, securities, and in-game items (VAUPA Art. 2)
• Virtual asset income (가상자산소득) — Income from transfer or lending of virtual assets (Income Tax Act Art. 21(1)(27))
• Classification for tax — "Other income" (기타소득) (Income Tax Act Art. 21)

2.2 Taxable Events (from 2027)

Taxable Events (from 2027)

Event	Tax Treatment
Sale of crypto for KRW/fiat	Taxable — transfer of virtual asset
Crypto-to-crypto exchange	Taxable — transfer; value determined by exchange ratio × underlying asset value
Lending crypto and receiving interest	Taxable — lending income
Mining rewards	Treatment remains ambiguous; NTS guidance pending; likely "other income" or business income depending on scale
Staking rewards	Treatment remains ambiguous; NTS guidance pending; likely taxable as income
Airdrops	Unclear; NTS has not issued specific guidance; conservative: taxable at FMV
Payment for goods/services with crypto	Taxable — transfer of virtual asset (disposal at FMV)
Transfer between own wallets	NOT taxable — no transfer of economic ownership
Gift of crypto	NOT virtual asset income tax — but subject to GIFT TAX (see Section 9)

2.3 Current Status (Pre-2027)

Current Status (Pre-2027)

Tax Type	Applies to Crypto Now?	Notes
Virtual asset income tax (22%)	NO — deferred to 2027	No filing obligation for crypto gains in 2025 or 2026
Gift tax (증여세)	YES — applies now	Crypto gifts between related parties are subject to gift tax at 10%–50%
Inheritance tax (상속세)	YES — applies now	Crypto held at death is part of the estate
Foreign asset reporting	YES — applies now	Overseas financial accounts > ₩500M must be reported
Corporate income tax	YES	Corporations already pay corporate tax on crypto investment gains

Section 3 -- Rate Tables

3.1 Virtual Asset Income Tax (from 1 January 2027)

Virtual Asset Income Tax (from 1 January 2027)

Component	Rate
National other income tax	20%
Local income tax (지방소득세)	2% (10% surtax on national tax)
Combined effective rate	22%
Annual basic deduction	₩2,500,000 (approx. USD 1,800)

• Virtual asset income tax formula — Taxable income = (Total gains from transfers + lending income) − (Total necessary expenses) − ₩2,500,000 Tax = Taxable income × 22% (Income Tax Act Art. 21(1)(27), Art. 64(1); Enforcement Decree Art. 41(13).)
• Flat-rate separate taxation — This is a flat-rate separate taxation — virtual asset income is NOT aggregated with other income types for progressive rate purposes. (Income Tax Act Art. 21(1)(27), Art. 64(1); Enforcement Decree Art. 41(13).)

3.2 Gift Tax Rates (Applies NOW)

Gift Tax Rates (Applies NOW) (Inheritance and Gift Tax Act Arts. 26, 53.)

Taxable Amount (₩)	Rate	Cumulative Deduction
Up to 100M	10%	—
100M – 500M	20%	₩10M
500M – 1B	30%	₩60M
1B – 3B	40%	₩160M
Over 3B	50%	₩460M

• Gift tax exemptions for crypto — Gift tax exemptions for crypto: ₩50M from spouse, ₩50M from lineal ascendants (adult children), ₩20M from other relatives over 10-year aggregation periods. (Inheritance and Gift Tax Act Arts. 26, 53.)

3.3 Korean Progressive Income Tax Rates (for reference — mining/business income)

Korean Progressive Income Tax Rates

Taxable Income (₩)	Rate	Cumulative Deduction
Up to 14M	6%	—
14M – 50M	15%	₩1.26M
50M – 88M	24%	₩5.76M
88M – 150M	35%	₩15.44M
150M – 300M	38%	₩19.94M
300M – 500M	40%	₩25.94M
500M – 1B	42%	₩35.94M
Over 1B	45%	₩65.94M

• Local income tax surtax — Plus 10% local income tax surtax on each bracket.

Section 4 -- Cost Basis Methods

4.1 Acquisition Cost Rules

Acquisition Cost Rules (Enforcement Decree Art. 89)

Transaction Type	Valuation Method	Authority
Exchange transactions (via registered exchange)	Moving average method (이동평균법)	Enforcement Decree Art. 89
All other transactions (P2P, DeFi, OTC)	FIFO (First In, First Out) (선입선출법)	Enforcement Decree Art. 89

• Consistency requirement — Once a method is applied by transaction type, it must be consistently maintained. (Enforcement Decree Art. 89)

4.2 Deemed Acquisition Cost (Transitional Rule)

• Deemed acquisition cost formula — Deemed acquisition cost = MAX(market price on 31 December 2026, actual acquisition cost)

For virtual assets held before the tax takes effect (i.e., acquired before 1 January 2027):

This protects existing holders from being taxed on pre-implementation gains. The market price will be determined by reference to exchange closing prices on 31 December 2026.

4.3 Necessary Expenses (Deductible Costs)

Necessary Expenses (Deductible Costs)

Expense	Deductible?
Acquisition cost (purchase price)	Yes
Exchange/trading fees on acquisition	Yes
Exchange/trading fees on disposal	Yes
Network/gas fees	Yes — if directly attributable
Transfer fees between wallets	Generally no — not a disposal
Hardware wallet cost	No — personal expense

4.4 Unverifiable Cost Basis

• Unverifiable cost basis ceiling — If the actual acquisition cost cannot be verified, the taxpayer may claim up to 50% of the transfer (sale) price as necessary expenses. This is a ceiling, not an entitlement — the NTS may challenge claimed amounts.

Section 5 -- DeFi / Staking / Mining / Airdrop Treatment

WARNING: The NTS has NOT issued detailed guidance on DeFi, staking, mining, or airdrops as of May 2026. The tax authorities have acknowledged these are "ambiguous criteria for taxing new income types." The following represents conservative interpretations based on the statutory framework.

5.1 Mining

Mining

Aspect	Treatment
Occasional/hobby mining	Likely "other income" (기타소득) at progressive rates when virtual asset income tax takes effect
Commercial-scale mining	Business income (사업소득) at progressive rates — applies now for corporations
Valuation	Market value at time of receipt
Cost basis of mined coins	Market value at receipt (for future disposal calculations)

5.2 Staking

Staking

Aspect	Treatment
Staking rewards received	Likely taxable as income at FMV when received (once 2027 framework applies)
Cost basis of staked rewards	FMV at receipt date
Staking-as-a-service	Lending income — taxable at 22%
Loss of staked assets (slashing)	Treatment unclear; likely not deductible absent NTS guidance

5.3 Airdrops

Airdrops

Aspect	Treatment
Airdrop from existing holding (fork-based)	Cost basis of ₩0; taxable on disposal
Promotional/gratuitous airdrop	Potentially taxable at FMV on receipt — NTS guidance pending
Airdrop in exchange for a service	Income at FMV

5.4 DeFi Lending and Liquidity Provision

DeFi Lending and Liquidity Provision

Activity	Treatment
DeFi lending interest	Lending income — taxable at 22% under virtual asset framework
Liquidity provision (LP)	Adding to pool may constitute transfer — LP token received has new cost basis
Yield farming rewards	Likely income at FMV
Impermanent loss	Not addressed by NTS; likely NOT deductible

Section 6 -- NFT Treatment

NFT Treatment (VAUPA Art. 2(3) exclusions; NTS classification criteria pending.)

Aspect	Treatment
NFTs generally	Excluded from virtual asset definition under VAUPA if they cannot be divided, used as payment, or exchanged for other virtual assets on a marketplace
Fungible or tradeable NFTs	May be classified as virtual assets — case-by-case
NFT sale profit (if classified as virtual asset)	Taxable at 22% under virtual asset income framework (from 2027)
NFT creation and sale (artist/creator)	Business income — taxed at progressive rates
NFT art collection (non-tradeable)	May fall outside the virtual asset tax scope
Gaming NFTs	Excluded if they meet the in-game item exception

NFT taxation in Korea is partially carved out:

Section 7 -- Reporting Requirements

7.1 Individual Filing (from 2027 income onwards)

Individual Filing (from 2027 income onwards)

Requirement	Detail
Return type	종합소득세 신고 (Comprehensive Income Tax Return)
Filing period	1–31 May of following year (first filing: May 2028 for 2027 income)
Filing portal	HomeTax (hometax.go.kr)
Payment deadline	31 May (same as filing)
Estimated/provisional payments	Not required for virtual asset income

7.2 Exchange Reporting Obligations

Exchange Reporting Obligations

Requirement	Detail
Domestic exchanges (Upbit, Bithumb, etc.)	Must report user transaction data to NTS
Data submission deadline	By end of January of the filing year (tentative: January 2028 for 2027 data)
Data collected	Transaction history, gains/losses, user identification
Customer self-certification	Since 1 January 2026, top 5 exchanges collect CARF self-certification forms for overseas tax obligations

7.3 Foreign Asset Reporting (Applies NOW)

Foreign Asset Reporting (Applies NOW)

Requirement	Detail
Overseas financial account reporting	If total balance of all overseas financial accounts exceeds ₩500M at any point during the year, must file report
Includes crypto on foreign exchanges	Yes — crypto held on Binance, Bybit, etc. counts toward ₩500M threshold
Filing deadline	June of the following year
Penalty for non-reporting	Up to 20% of unreported amount
CARF data sharing	Korea begins receiving data from CARF-signatory countries in 2027; US joins 2029

7.4 Record-Keeping

Record-Keeping

Requirement	Detail
Retention period	5 years from filing deadline
Records to maintain	Full transaction logs, exchange records, wallet addresses, cost basis calculations, lending records
Burden of proof	On the taxpayer for claimed deductions and cost basis

Section 8 -- Loss Offset and Carry-Forward

8.1 Loss Offset Rules (from 2027)

Loss Offset Rules (from 2027)

Rule	Detail
Netting within year	Gains and losses from virtual asset transactions are netted within the calendar year
Cross-asset netting	Losses on one virtual asset can offset gains on another within the same year
Basic deduction	₩2,500,000 applied after netting
Loss carry-forward	NOT permitted — losses cannot be carried to future years
Loss carry-back	NOT permitted

8.2 Key Limitation

• No loss carry-forward for virtual asset income — South Korea does not allow loss carry-forward for virtual asset income. If an investor loses ₩4.4M in 2027 and gains ₩4.4M in 2028, they owe ₩418,000 tax in 2028 (after ₩2.5M deduction) despite being net flat over two years. The Ministry of Economy and Finance has stated this aligns with the treatment of domestic stock investment income, which also does not allow loss carry-forward. (Income Tax Act Art. 21; confirmed by Ministry of Economy and Finance at May 2026 National Assembly forum.)

Section 9 -- Anti-Avoidance Rules

9.1 Gift Tax on Crypto Transfers (IN EFFECT NOW)

Gift Tax on Crypto Transfers (IN EFFECT NOW)

Rule	Detail
Applies	Gift of virtual assets between related parties
Effective	NOW — regardless of virtual asset income tax deferral
Valuation	Average of daily closing prices on registered exchanges for 1 month before and 1 month after the gift date
Rates	10%–50% progressive (see Section 3.2)
Exemptions	Spouse: ₩600M (lifetime); Lineal ascendants/descendants: ₩50M (adults), ₩20M (minors) per 10 years
NTS enforcement	NTS has actively investigated crypto gift tax evasion

This is the most important current anti-avoidance provision:

9.2 Wash Sale Rules

• Wash sale rules — No specific wash sale rule has been enacted for virtual assets. However, the NTS may invoke general anti-avoidance provisions if transactions lack economic substance.

9.3 Overseas Exchange Enforcement

Overseas Exchange Enforcement

Measure	Detail
CARF	Korea joins CARF; exchanges data with signatory countries from 2027
US gap	US does not join CARF until 2029 — enforcement gap for US-based exchange transactions in 2027–2028
Statute of limitations	10 years — NTS can retroactively assess 2027–2028 income once US data is available
Deliberate non-reporting	NTS acknowledges tracking difficulty for hidden wallets; penalties apply for intentional evasion

9.4 Corporate vs Individual Disparity

• Corporate vs individual disparity rationale — Corporations already pay corporate income tax on virtual asset gains. The government has stated that exempting individuals while taxing corporations would be unfair — this is a key rationale for proceeding with the 2027 implementation.

Section 10 -- Worked Examples

Example 1 -- Basic Trading Gain (2027 Scenario)

Input: Korean tax resident. Bought 1 BTC on Upbit at ₩40,000,000 in February 2027. Sold 1 BTC on Upbit at ₩55,000,000 in August 2027. Exchange fees: ₩150,000 total.

Computation:

Disposal proceeds:    ₩55,000,000
Cost basis (moving avg): ₩40,000,000 + ₩150,000 fees = ₩40,150,000
Gain:                 ₩14,850,000
Basic deduction:      ₩2,500,000
Taxable income:       ₩12,350,000
Tax (22%):            ₩2,717,000
  - National (20%):   ₩2,470,000
  - Local (2%):       ₩247,000

Filed via 종합소득세 신고 on HomeTax by 31 May 2028.

Example 2 -- Pre-2027 Holdings with Deemed Cost Basis

Input: Korean tax resident. Bought 10 ETH at ₩500,000 each in 2021 (actual cost: ₩5,000,000). Market price on 31 Dec 2026: ₩4,000,000 per ETH (total: ₩40,000,000). Sold all 10 ETH at ₩5,000,000 each in March 2027 (total proceeds: ₩50,000,000).

Computation:

Deemed acquisition cost = MAX(actual cost, 31 Dec 2026 price)
  Actual cost:            ₩5,000,000
  31 Dec 2026 value:      ₩40,000,000
  Deemed cost:            ₩40,000,000

Disposal proceeds:        ₩50,000,000
Cost basis:               ₩40,000,000
Gain:                     ₩10,000,000
Basic deduction:          ₩2,500,000
Taxable income:           ₩7,500,000
Tax (22%):                ₩1,650,000

The pre-2027 appreciation (₩35,000,000) is shielded by the deemed cost basis rule.

Example 3 -- Gift Tax (Applies NOW — 2025)

Input: Parent gifts 2 BTC to adult child. Average exchange price over the 2-month valuation window: ₩50,000,000 per BTC. Total gift value: ₩100,000,000.

Computation:

Gift value:                ₩100,000,000
Exemption (adult child):   ₩50,000,000
Taxable gift:              ₩50,000,000
Gift tax (10%):            ₩5,000,000

This applies in 2025 — gift tax on crypto is already in force regardless of the virtual asset income tax deferral.

Self-Checks

Before finalising any South Korea crypto tax computation, verify:

• Is the income year 2027 or later? If before 2027, virtual asset income tax does NOT apply (but gift tax and foreign reporting do)
• Has the taxpayer confirmed Korean tax residency?
• Are all transaction values converted to KRW at the transaction date?
• Has the correct cost basis method been applied (moving average for exchange, FIFO for other)?
• For pre-2027 holdings, has the deemed acquisition cost been computed using MAX(31 Dec 2026 price, actual cost)?
• Has the ₩2,500,000 basic deduction been applied (once per year, not per transaction)?
• Have any crypto gifts been checked for gift tax liability?
• Has the ₩500M overseas financial account threshold been checked?
• Are exchange fees included in cost basis?
• Has the loss netting been done correctly within the year (no carry-forward)?
• Flag for reviewer: has NTS issued any updated guidance since this skill was written?

PROHIBITIONS

• NEVER state that crypto gains are taxable income in Korea for years before 2027 — the income tax is deferred
• NEVER ignore gift tax — it applies NOW to crypto transfers between related parties
• NEVER allow loss carry-forward — Korea does not permit this for virtual asset income
• NEVER assume progressive rates apply to virtual asset income — it is a flat 22% separate tax
• NEVER forget the deemed acquisition cost rule for pre-2027 holdings
• NEVER ignore overseas exchange holdings for the ₩500M foreign account reporting threshold
• NEVER compute gain without verified cost basis and correct method (moving average vs FIFO)
• NEVER treat wallet-to-wallet transfers as taxable disposals
• NEVER present crypto tax positions as definitive — NTS guidance is still evolving; always flag for professional review
• NEVER advise on VAUPA regulatory compliance — this skill covers tax only

Disclaimer

This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a Korean licensed tax accountant (세무사), CPA, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

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