Important Dates for Japan
Crypto Tax Season (2025-2026)
15
Mar
2026
Return for tax year 2025.
Free Japan Crypto
Tax Filing Checklist
for Japan Crypto Tax Filing:
Get started in 3 simple steps
Why Kryptos?
NFT Native
Built Specifically for Japan Tax Regulations
Miscellaneous Income Treatment
Crypto gains are classified as miscellaneous income and added to your total taxable income
Progressive Income Tax Structure
Income is taxed progressively from 5 percent to 45 percent, plus 10 percent resident tax.
No Loss Carryforward
Crypto losses cannot be carried forward to future years or offset against other income categories.
JPY Conversion Requirement
All transactions must be converted to Japanese Yen at the time of each transaction.
#1 Choice for Thousands of Japan Investors
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"The best crypto tax application "
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We've Got Every Tax Form You Need
| Form | Who is this for? | What does this include? | View form |
|---|---|---|---|
| Income Tax Return Form B 確定申告書B | Individuals reporting miscellaneous income including crypto | Full annual income declaration including crypto gains as miscellaneous income, salary, business income, deductions, and total taxable income; crypto income reported with JPY conversion at transaction time | View |
| Income Tax Return Form A 確定申告書A | Individuals with employment income and additional miscellaneous income | Standard employment income reporting plus additional miscellaneous income including crypto; JPY valuation of crypto at transaction time; includes deductions and total taxable income | View |
| Miscellaneous Income Section 雑所得 | Section within the income tax return where crypto income is declared | Section within the tax return for declaring crypto gains, staking, mining, DeFi, NFT, and other income classified as miscellaneous; supports documentation for NTA compliance | View |
| Crypto Asset Calculation Worksheet 暗号資産の計算書 | Optional worksheet for calculating crypto gains and maintaining records | Spreadsheet-style worksheet to calculate crypto gains, record transaction history, track JPY conversion, maintain supporting documents for filing and audits | View |
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NTA Compliant Reports
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Japan Crypto Tax Resources
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Frequently asked questions
Crypto gains in Japan are taxed as 'miscellaneous income' (雑所得, zatsushotoku) at progressive rates ranging from 5% on income below ¥1,949,000 up to 45% on income above ¥48,295,000, plus a 10% municipal inhabitant tax — giving effective rates of up to 55%. Japan currently has some of the highest crypto tax rates among major economies.
Japan's government has proposed a flat 20.315% tax on qualifying crypto gains (comprising 15% income tax, 0.315% surtax, and 5% local tax), plus a 3-year loss carryforward. Critically, this reform applies only to 'Specified Cryptocurrencies' — tokens listed on exchanges registered as Financial Instruments Business Operators (FIBO) under Japan's Financial Instruments and Exchange Act. Altcoins on unregistered, overseas, or decentralised exchanges are unlikely to qualify and may remain subject to rates up to 55%. The bill has not yet passed as of early 2026; implementation is expected in 2027, with a possible delay to 2028.
Under current rules, losses can only be offset against miscellaneous income within the same tax year. You cannot offset crypto losses against employment income or stock capital gains, and losses cannot be carried forward. Under the proposed reform, a 3-year loss carryforward would be permitted — but only for qualifying Specified Cryptocurrencies.
File your annual Kakutei Shinkoku (確定申告) with the National Tax Agency via e-Tax (www.e-tax.nta.go.jp) or paper forms at your local tax office. Declare crypto as miscellaneous income. You will need: total disposal proceeds, cost basis and net gains, exchange names and addresses, and all transaction dates
The NTA permits two official methods: the Moving Average method and the Total Average method. Both are valid and must be applied consistently across all transactions once chosen.
Kryptos supports Japanese crypto tax reporting with progressive rate calculations (5–55%), a simulation of the proposed flat 20% reform for Specified Cryptocurrencies, both Moving Average and Total Average cost basis methods, mining and staking categorisation, e-Tax compatible reporting, and 7-year record maintenance.