Japan Cryptocurrency Tax Laws — Complete Guide

⚡ 30-second answer: Trade on Coincheck, bitFlyer, GMO Coin, and others. Gains are taxed as miscellaneous income under aggregate taxation, up to 55% (income tax 45% + resident tax 10%). Filing is required when gains exceed ¥200,000/year; losses cannot be carried forward, and staking/airdrops are also taxable income.

Quick Reference	Value
Tax category	Miscellaneous income (aggregate)
Top marginal rate	55% (income 45% + resident 10%)
Filing threshold (salary only)	Over ¥200,000/year
Loss carry-forward	Not allowed
Last verified	June 2026

30-Second Answer

Japan has one of the world's heaviest crypto tax regimes. Gains from selling, swapping into other coins, staking, lending, airdrops, and NFT trading are generally taxed as miscellaneous income under aggregate taxation (up to 55%). Salaried workers must file if annual gains exceed ¥200,000; resident tax must be filed from ¥1. The flat 20.315% rate that applies to stocks and FX does NOT apply, and losses can only be offset against other miscellaneous income to a limited extent — never carried forward. Coincheck, bitFlyer, GMO Coin, SBI VC Trade, and bitbank are the major domestic exchanges, all registered as crypto-asset exchange operators.

💴 Top 10 Domestic Exchanges

Overseas exchanges (Binance, Bybit, OKX, etc.) restrict services to Japanese residents — for tax purposes, you must build acquisition cost records yourself.

💰 Tax Rates

Aggregate income tax + resident tax:

• Up to ¥1.95M taxable: 5% + 10% = 15%
• ¥1.95M-3.30M: 10% + 10% = 20%
• ¥3.30M-6.95M: 20% + 10% = 30%
• ¥6.95M-9.00M: 23% + 10% = 33%
• ¥9.00M-18.00M: 33% + 10% = 43%
• ¥18.00M-40.00M: 40% + 10% = 50%
• Over ¥40.00M: 45% + 10% = 55%
• Special reconstruction tax: +2.1% (applied to income tax)
• NISA / iDeCo: Crypto is excluded
• Stock capital gains: 20.315% separate rate (not available for crypto)
• Loss carry-forward: Not allowed for crypto
• Loss offset: Yes vs other misc income; no vs salary/business income
• Cost basis: Moving average or total average method

If you earn ¥6M salary + ¥2M crypto profit, you're taxed on a combined ¥8M base, landing in the 33% bracket.

🌐 Treatment of Foreign Residents

• Non-residents: Profits on domestic exchanges generally face 20.42% withholding
• Residents (1 year+): Same aggregate taxation as Japanese nationals
• Permanent residents: Worldwide income taxable (including overseas exchanges)
• Non-permanent residents (5 years or less): Domestic-source income + remittances only
• Tax treaties: Double-taxation relief with US, UK, etc.
• My Number: Required for exchange opening and tax filing
• International wires: Reports required for transfers above ¥1M
• Cross-border: Unrealized gains on departure (exit tax) also apply

⏰ Tax Filing Schedule

• Period covered: 1/1-12/31 gains
• Filing window: Feb 16-Mar 15 the following year
• e-Tax: My Number Card or ID/PW method
• Required docs: Annual trading report + cost-basis records
• Payment due: Mar 15 (income tax); from June (resident tax)
• Installments: Pay half by Mar 15 and the rest by May 31
• Cryptact / Gtax: Leading tax-calculation tools
• Tax accountant fees: ¥30,000-150,000 typical
• Refund claims: Within 5 years
• Amended return: Voluntary filing reduces additional penalties

💳 Trading & Transfer Notes

• JPY deposits: Bank transfer, convenience store, quick deposit
• JPY withdrawals: Only to Japanese bank accounts (overseas banks usually not allowed)
• Wise: Deposit JPY to domestic exchanges; overseas withdrawal needs a separate route
• Withdrawing from overseas exchanges: Standard route is USDT → domestic exchange → JPY
• Travel rule: Counterparty info required for overseas transfers above ¥100,000
• Tax authority inquiries: Exchanges must submit statutory reports
• Record retention: Keep trading history and receive addresses for 7 years
• Hardware wallets: Unrealized gains on Ledger/Trezor are still taxable

⚠️ Things to Watch Out For

• Cost basis: Use moving or total average — stay consistent within a fiscal year
• Airdrops: Income at the market price on receipt
• DeFi: Swaps are treated as exchanges; gains/losses crystalize each time
• Staking rewards: Misc income at fair value on receipt
• NFTs: Trading gains are misc income (business income when highly recurrent)
• Mining: Deductible expenses; either business or misc income
• Gas fees: Deductible as expenses
• Workplace exposure: Switch to "ordinary collection" of resident tax to avoid alerting your employer
• Failure to file: Up to 40% additional tax + late charges

5 Common Tourist/Foreigner Mistakes

1. Expecting loss carry-forward: Crypto can't carry losses — don't confuse with stocks
2. Calculating exchanges separately: Combine all exchanges to compute cost basis
3. Ignoring overseas exchanges: Residents must report overseas profits too
4. Assuming 20.315%: Unlike stocks, crypto faces aggregate taxation up to 55%
5. Missing airdrops: Income hits on receipt; later sales are a separate gain

Pre-Filing Checklist

• Download the annual trading report from each exchange
• Compute cost basis with Cryptact or Gtax
• Export history from overseas exchanges as CSV
• Organize airdrop, staking, and DeFi history
• Prepare My Number Card or notification card
• Set up an e-Tax account
• Identify other misc income that can offset losses
• Consult a tax accountant for large amounts
• Choose resident tax method (ordinary or special)
• Organize records of overseas wires above ¥1M

FAQ

Q1: Does the 20.315% stock rate apply? A: No. Crypto is misc income under aggregate taxation, up to 55%.

Q2: Is filing unnecessary under ¥200,000? A: Only for salaried workers (income tax filing). Resident tax must be filed from ¥1.

Q3: Must I report overseas profits? A: Yes — residents and permanent residents are taxed on worldwide income.

Q4: Can losses be carried forward? A: No. Only offset against other misc income within the same year.

Q5: How are staking and airdrops handled? A: Misc income at the market price on receipt; later sales generate separate gains.

Editorial: Yen Finder Editorial / Last verified June 2026. This article is general guidance — confirm specifics with a tax professional or the tax office.