Featured image of post Basic Rules 详解 for 加密货币 Taxes and Tax Returns in JapanFeatured image of post Basic Rules 详解 for 加密货币 Taxes and Tax Returns in Japan

Basic Rules 详解 for 加密货币 Taxes and Tax Returns in Japan

If you generate profits from trading crypto in Japan, understanding taxes and filing returns is mandatory. Japanese tax laws apply distinct rules to crypto that differ from stock trading. We cover the core tax codes to keep you compliant.

Crypto Income is Classified as “Miscellaneous Income”

Under Japanese tax laws, cryptocurrency trading profits are categorized as “Miscellaneous Income” (雑所得) subject to aggregate taxation.

  • Progressive Tax Rates: The rate climbs with your tax bracket, topping out at a maximum of 55% (combined national income and local inhabitant tax).
  • No Loss Offset (損益通算): You cannot offset crypto losses against your salary income or stock market profits.

When is Tax Triggered?

Taxes are not triggered by simply holding coins (unrealized gains). Tax liabilities occur upon realization:

  1. Selling Crypto: Converting coins back to Japanese Yen.
  2. Trading Crypto for Crypto: Exchanging BTC for ETH. The transaction counts as selling BTC at market value to buy ETH.
  3. Purchasing Goods with Crypto: Spending crypto to buy products triggers tax on the gain relative to the asset’s cost basis.

Filing Threshold

For salaried workers, you must file a tax return if your total side-hustle profits (including crypto) exceed 200,000 JPY annually.