Cryptocurrency Tax Treatment in Japan

Current Tax Framework (2026)

Japan is undergoing a major shift in cryptocurrency taxation. As of 2026, the government has implemented a flat 20% capital gains tax on specified cryptocurrencies, replacing the previous system where crypto gains were taxed as miscellaneous income at rates up to 55%.[1][3]

Capital Gains Tax Rate

The new 20% flat rate applies to gains from specified crypto assets traded on exchanges registered under the Financial Instruments and Exchange Act (FIEA), which covers approximately 105 cryptocurrencies including Bitcoin and Ethereum.[1][3] This rate mirrors Japan's treatment of stocks and traditional equity investments.[2]

Previously, crypto gains were classified as miscellaneous income and combined with salary and other income, resulting in progressive tax rates ranging from 5% to 45% plus a 10% municipal tax, creating an effective maximum rate of 55%.[4][5]

Income Tax Classification

Under the 2026 reform, cryptocurrency is now treated as a separate financial category rather than being grouped with wages or business income.[2] This reclassification aligns crypto with how Japan handles equities and mutual fund profits, with their own filing rules.[2]

Tax-Advantaged Features

The reform introduces a three-year loss carryforward, allowing qualifying crypto trades to offset losses against future gains, similar to stock market provisions.[1] Additionally, cryptocurrency losses can offset gains from other miscellaneous income sources within the same tax year.[5]

Filing Requirements

Reporting threshold: Individuals earning more than 200,000 JPY from crypto must file taxes.[4][5] However, if you plan to file for medical expense deductions or hometown tax deductions, you must report crypto profits even if earnings are 200,000 JPY or less.[4]

Tax year and deadline: Japan's tax year runs from January 1st to December 31st, with taxes due by March 15th of the following year.[5]

Taxable and Non-Taxable Events

Taxable transactions include:[4][5]

• Selling crypto for fiat currency
• Trading between cryptocurrencies
• Using crypto for purchases

Non-taxable transactions:[4]

• Purchasing crypto
• Holding crypto
• Moving crypto between wallets

Unclear Areas Under Current Proposal

The 2026 proposal does not yet clarify the tax treatment of NFTs and income from staking or lending.[1] These remain unaddressed in the current regulatory framework.

Additional Considerations

The Financial Services Agency requires mandatory disclosure obligations for exchanges, including whether tokens have identifiable issuers, blockchain technology details, and volatility profiles.[3]

Note on non-permanent residents: Non-permanent residents pay a 20.42% flat tax on all income earned in Japan.[5] Expats who are tax residents are generally subject to Japanese tax on crypto gains, with long-term residents potentially taxed on worldwide crypto income.[6]