> ## Documentation Index
> Fetch the complete documentation index at: https://guides.koinx.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Japan - Complete Tax Report
> Understand how the Japan Complete Tax Report applies NTA guidance and local income rules to your crypto tax data, covering gains, derivatives, DeFi income and balances.
* Japan taxes crypto as miscellaneous income (Zatsushotoku), with progressive rates up to approximately 55% including local taxes
* Every crypto transaction is taxable, including crypto-to-crypto swaps and using crypto for purchases
* Cost basis is calculated using either the Moving Average Method or Total Average Method
* The report covers crypto trading gains, derivatives income, staking and DeFi income, and portfolio balances
* Can be shared with your Zeirishi (tax accountant) for Kakuteishinkoku filing
Japan has some of the highest crypto tax rates in the world, with gains taxed as miscellaneous income (雑所得 / Zatsushotoku) under the Japanese tax system. The KoinX Complete Tax Report for Japan calculates your gains according to National Tax Agency (NTA) guidelines.
This report compiles crypto trading gains, derivatives income, staking rewards, DeFi income, and transaction-level records into one document for your 確定申告 (Kakuteishinkoku) annual tax return.
***
## What Is in This Report?
The Japan Complete Tax Report contains the following sections:
| Section | Purpose |
| ----------------------------------------- | ----------------------------------- |
| Miscellaneous Income Summary | Total taxable crypto income |
| Summary of Income from Crypto Derivatives | Futures and options income |
| Other Income & Expense Summary | Airdrops, staking, mining, rewards |
| Beginning of Year Balance | Crypto holdings at start of year |
| End of Year Balance | Crypto holdings at end of year |
| Capital Gains Transactions | Detailed disposal records |
| Crypto Derivatives Transactions | Detailed futures and options trades |
| Other Income Transactions | Detailed income and expense events |
| Asset Wise Profit & Loss | Profit and loss breakdown per asset |
| Data Sources | Exchanges, wallets, and files used |
***
## How Japan Taxes Crypto
Japan treats cryptocurrency gains as miscellaneous income rather than capital gains.
| Income Level | Approx Tax Rate |
| --------------- | --------------- |
| Under ¥1.95M | \~15% |
| ¥1.95M to ¥3.3M | \~20% |
| ¥3.3M to ¥6.95M | \~30% |
| ¥6.95M to ¥9M | \~33% |
| ¥9M to ¥18M | \~43% |
| Over ¥18M | \~50 to 55% |
Crypto income is combined with other miscellaneous income categories when calculating your final tax liability.
***
## Miscellaneous Income Summary
The report includes a summary of taxable crypto income generated during the year.
| Field | Description |
| ------------------------ | ----------------------------------------- |
| Number of Transfers | Total crypto transactions during the year |
| Sale Consideration | Total value received from disposals |
| Cost of Acquisition | Purchase cost of assets sold |
| Gross Profit | Total gains generated |
| Total Loss | Total losses recorded |
| Net Miscellaneous Income | Final taxable crypto income |
This summary provides the total amount that must be reported in your Kakuteishinkoku.
***
## Every Trade Is Taxable
Under Japanese tax rules, almost every crypto transaction triggers taxation:
| Activity | Taxable |
| ------------------------ | ------- |
| Sell BTC for JPY | Yes |
| Trade BTC for ETH | Yes |
| Use crypto for purchases | Yes |
| Receive staking rewards | Yes |
| Buy crypto with JPY | No |
This means even crypto-to-crypto swaps create taxable gains or losses.
***
## Cost Basis Methods in Japan
The NTA allows two calculation methods:
| Method | How It Works |
| --------------------- | --------------------------------------------- |
| Total Average Method | Average cost of all purchases during the year |
| Moving Average Method | Running average updated after each purchase |
Once selected, the same method must be used consistently across tax years.
***
## Summary of Income from Crypto Derivatives
If you trade derivatives, the report includes a summary of futures and options trading results.
| Field | Description |
| --------------------- | --------------------------- |
| Total Realised Profit | Total derivatives profits |
| Total Realised Losses | Total derivatives losses |
| Total Fees Paid | Brokerage and funding fees |
| Net Derivatives Gains | Profit after deducting fees |
This section helps calculate derivatives income as miscellaneous income.
***
## Other Income & Expense Summary
This section includes **crypto received as income rather than through trading**.
Examples include:
* Airdrops
* Staking rewards
* Mining income
* Salary paid in crypto
* Consultancy income
Expenses may include:
* Margin fees
* Mining expenses
* Donations
* Consultancy expenses
* Miscellaneous costs
All income is valued at **fair market value at the time received**.
***
## Detailed Beginning of Year Balance of Assets
Shows the **portfolio position at the start of the financial year**.
Each entry includes:
| Field | Description |
| ------------ | ----------------------- |
| Asset Name | Cryptocurrency |
| Quantity | Amount held |
| Cost | Acquisition cost |
| Market Value | Value at reporting date |
| Remarks | Average price details |
## Detailed End of Year Balance of Assets
Shows the **portfolio position on the last day of the financial year**.
**Why these reports matters:**
* Shows your starting position for the year
* Helps verify that cost basis carry-forward is correct
* Useful for audit trail and reconciliation
***
## Capital Gains Transactions
This section lists all crypto disposals that generated gains or losses.
| Field | Description |
| ------------- | --------------------------- |
| Purchase Date | When the asset was acquired |
| Sale Date | Disposal date |
| Asset | Cryptocurrency traded |
| Quantity | Amount sold |
| Buy Value | Purchase price |
| Sell Value | Sale price |
| Profit/Loss | Result of the transaction |
| Exchange | Data source |
This section serves as the audit trail for tax calculations.
***
## Crypto Derivatives Transactions
This section provides a detailed list of futures and options trades.
| Field | Description |
| --------- | ------------------ |
| Date | Trade date |
| Asset | Underlying asset |
| Quantity | Contract size |
| Net Gains | Profit or loss |
| Type | Futures or Options |
These transactions support the derivatives summary earlier in the report.
***
## Other Income Transactions
This section lists detailed income and expense events such as:
* Reward income
* Staking interest
* Airdrops
* Mining income
* Salary payments
* Consultancy income
* Donations
* Mining expenses
Each record includes **date, asset, quantity, description, value, and exchange source**.
***
## Asset Wise Profit & Loss
This section summarises profit and loss for each cryptocurrency asset.
| Asset | Gross Profit | Gross Loss | Net Gains |
| ----- | ------------ | ------------- | ------------ |
| ETH | ¥79.32 | ¥61,330.93 | -¥61,251.61 |
| BNB | ¥440.97 | ¥1.49 | ¥439.48 |
| USDT | ¥985,994.05 | ¥1,667,050.32 | -¥681,056.28 |
This helps identify which assets contributed most to your gains or losses.
***
## Data Sources
The final section lists all integrations used to generate the report, including exchanges, wallet addresses, and custom file imports. This ensures transparency about where the data originated.
***
## DeFi and Staking Under Japanese Rules
All crypto income is treated as miscellaneous income.
| Activity | Tax Treatment |
| --------------- | --------------------------- |
| Staking rewards | Income at FMV when received |
| DeFi yield | Income at FMV when received |
| Airdrops | Income at FMV when received |
| Mining | Income at FMV when received |
These values become the cost basis for future disposals.
***
## Filing Your Kakuteishinkoku
Japan's tax year runs from January 1 to December 31. The filing deadline is typically March 15 of the following year.
To file: calculate total crypto miscellaneous income using the KoinX report, combine it with other miscellaneous income, file via e-Tax or paper return, then pay any taxes owed.
If you work with a Zeirishi (tax accountant), share the KoinX report with them.
***
## Frequently Asked Questions
The Complete Tax Report (Japan) is your main document. It calculates gains and income according to NTA guidelines.
Yes. It uses NTA-accepted cost basis methods and treats crypto gains as miscellaneous income.
The report is primarily in English but follows NTA calculation rules and displays values in JPY.
Staking rewards, DeFi yield, and airdrops are recorded as miscellaneous income at fair market value when received.
Japan taxes crypto as miscellaneous income instead of capital gains, meaning it is taxed at progressive income tax rates up to approximately 55%.