How much is the tax if Bitcoin profits 10 million yen? Explanation for beginners to Japanese cryptographic asset taxation

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In Japan, as a rule, the profit of crypto assets is divided into miscellaneous income and is subject to comprehensive taxation.

Here, 10 million yen is the image of income after deducting the acquisition price and commission, not the sale amount.

The tax rate is about 20. Not 315% It is a mechanism that is easy to increase the tax rate as the income increases, which is combined with salary income, business income, sub- income etc.

For this reason, even with the same "BTC profit 10 million yen", the final tax amount will be changed for people with low salary, employees with annual income 5 million yen, and those with high income already.

ざっくり言えば、

Bitcoin's profit of 10 million yen is the level of conscious of the tax of several million yen

Home If you reinvest all of your profits, you will be suffered by the following year's tax return and tax payment.

This is a general explanation of the system. The actual tax amount varies depending on income deduction, dependency, social insurance, residence, and transaction content, so please check with the tax office or tax accountant.

First Con」: Crypto Assets are “Complex Income”

In Japan, if a profit occurs by selling or using crypto assets such as Bitcoin, the profit is divided into miscellaneous income as a rule.

A miscellaneous income is a comprehensive tax accountant that calculates the tax amount in with other income such as salary.

This is very different from stock investment.

The transfer of shares etc. of listed shares is usually taxed by declaring and declaring. 315% Crypto assets are combined with salary, etc., not this framework, so the burden of people with high income is easy to bear.

The tax is not determined by justビットコインing that it was profitable 10 million yen.

The following three things to see:

• How much crypto assets are
• How much other income is
• How much income deduction can be used?

Case 1: When a corporate member with an annual income of 5 million yen returns 10 million yen on BTC

The company employee whose annual income is 5 million yen has earned 10 million yen by separately.

The image is as follows:

Salary income etc.
  +
BTC Profit 10 million yen
  ↓
Income tax and resident tax

In this case, if you see only the tax burden on BTC profit 10 million yen, it may be 3 million yen together with income tax, special reconstruction income tax, and resident tax.

Of course, salary income deduction is deducted from salary income, and basic deductions, social insurance deductions, and dependent deductions are reflected. Changes in year-end adjustment and family composition.

However, it is like this.

It is not possible to use all 10 million yen as a result of 10 million yen profit

If you make a mistake here, you will be charged for the next year.

Case 2: BTC profit only 10 million yen

Even if there are few other incomes and there is only 10 million yen in Bitcoin profit, tax is not small.

Income tax is an excess cumulative tax rate. The higher the income, the higher the tax rate.

The following is a rough guide.

This is a summary.

In fact, basic deductions, social insurance premium deductions, dependent deductions, medical expenses deductions, m gage deductions, etc. There is also an even discount for residents tax, and the details differ depending on the municipality.

However, the profit of 10 million yen is not enough to pay a little more tax. It is necessary to leave a lot of cash.

Why Bitcoin Tax Feels High

Simple. Because stock and tax system are different.

Profit on sale of shares

The sale of listed shares is usually taxable.

Income Tax 15%, Reconstruction Special Income Tax 0. 315%,住民 of resident tax 20. 315%

Profit on sale of shares
  ↓
In principle, taxation
  ↓
About 20. 33%

Profit of crypto assets such as Bitcoin

The profit of crypto assets is miscellaneous income as a rule.

Crypto assets
  ↓
Tag
  ↓
Salary
  ↓
Tax

Income tax rate increases depending on taxable income. Income tax rate is 45%. Reconstruction Special Income Tax is required, and the resident tax is generally around 10%.

In other words, in the case of high-income people, the additional burden on the profit of crypto assets is quite heavy.

It doesn’t mean that it takes 45% in total. Income tax is an excess cumulative tax rate, so the tax rate is higher than a certain income.

Figure: Difference between stock andの tax

Is tax not generated if it is not profitable

Basically, it is not taxed in the early stage of interest.

For example, even if the BTC purchased at 1 million yen rises to 10 million yen, if it is not yet sold, it is a profit. In general, income tax is not included at that time.

However, the following actions may result in taxation.

• Sell crypto assets and return them to circles
• Exchange crypto assets to another crypto asset
• Buy products and services with crypto assets
• Get rewards for mining,ングking, and lending

Beginners are especially stum with crypto assets.

Exchange from BTC to ETH can also be taxable

Some people think that tax is not related because they are not returning to the yen.

This is dangerous.

For example, if you exchange the valued BTC to ETH, taxation is found as a transaction that receives ETH. If the BTC is profitable, the profit can be taxed.

Buy BTC Cheap
  ↓
BTC
  ↓
Buy ETH in BTC
  ↓
Possibility to recognize BTC profit

The more the number of transactions, the more complicated the calculation here.

If you are using foreign exchanges, multiple wallets, DeFi, NFT, andングking, it is quite difficult to make profits at the end of the year. It is better to put a habit to leave the trade history before the profit increases.

Is there a tax-free system like Nは?

As of May 29, 2026, there is no tax-exempt framework like NA on the profit of crypto assets.

If you are a stock or investment trust, you may be able to use a new NA tax exemption.

However, cryptographic assets such as Bitcoin are not eligible for NA. As a general rule, you will need to confirm taxation and tax payment if you profit with crypto assets.

I think that it is the same tax because the stock and crypto assets are also invested.

The most scary failure in 10 million yen

A person who was largely profitable with cryptographic assets is not leaving tax funds from the tax rate itself.

This is a common flow.

Profit of 10 million yen at BTC
  ↓
Reinvestment without considering taxes
  ↓
The next year
  ↓
No cash on hand
  ↓
You have to pay only taxes

This can happen normally because crypto assets have a large value movement.

When the profit is confirmed, avoid the tax amount to another account. This is the most practical.

The minimum is 3:

• Secure tax payments in cash once the profit is confirmed
• Ensure annual profit and loss per exchange
• Remains exchange history between crypto assets

Notes when viewing simple simulations

There are articles and tools on the net that calculate the tax of crypto assets.

It’s useful, but there are some points to note.

In particular, the number changes depending on whether the salary income or salary income or how far the deduction is put.

This is a rough feeling to think about tax payment. Please check the actual amount based on your trading history and deductions.

In Japan, as a general rule, it is treated as miscellaneous income and is subject to general taxation.

The following points are:

• Income in principle, the profit of crypto assets
• Cal d with other income such as salary
• Approx. 20. Like the sale of shares 315% not uniform
• It is easy to pay tax for people with high income
• Taxation may occur even in exchange from BTC to ETH
• It is important to leave tax in cash after gain

Profit of 10 million yen is a big result.

However, you can see how much it will remain after you get tax. Cryptographic assets are safer to think about tax payments, tax payments, and tax declarations in a set, which is easy to understand value movement and tax.

Reference

• Date: 2026-05-29