Profits earned from overseas forex trading are considered income in Japan, so once you earn a certain amount of profit, you must file a tax return and pay taxes.
Tax returns are generally required to be filed between February 16th and March 15th of the following year, based on income earned from January 1st to December 31st of each year. It's a good idea to prepare in advance
Therefore, in this article, in addition to explaining how to file your tax return, we will also thoroughly explain various deductions and penalties to avoid losing money on taxes
Contents
- 1 Before we get to how to file your tax return for overseas forex trading, check this first!
- 2 In essence, filing a tax return is "a procedure to report the amount of tax that should be paid to the government."
- 3 How to file your tax return for overseas forex trading! A detailed explanation of the process
- 3.1 ① Before filing your tax return, prepare your "My Number" and "Annual Profit and Loss Statement," etc
- 3.2 ② Access the National Tax Agency's tax return preparation page
- 3.3 ③ Select "Income Tax" and start creating
- 3.4 ④ Enter your salary income and other details according to the instructions on the screen
- 3.5 ⑤ Enter the actual profits you earned from FX trading
- 3.6 ⑤ Enter any applicable deductions
- 3.7 ⑥ Check the tax amount and proceed to the next step
- 3.8 ⑦ Review the information regarding resident tax and business tax and proceed to the next step
- 3.9 ⑧ Enter personal information such as address and name
- 3.10 ⑨ Print your tax return
- 3.11 If you're unsure, it's a good idea to ask a tax accountant to handle it for you
- 4 Q&A regarding how to file tax returns for overseas forex trading
- 5 summary
Before we get to how to file your tax return for overseas forex trading, check this first!

Before looking at how to file your tax return for overseas forex trading, let's first understand what a tax return is
In essence, filing a tax return is "a procedure to report the amount of tax that should be paid to the government."
the process of calculating your income and tax liability for the period from January 1st to December 31st each year .
Since taxes are calculated based on income, if your taxable income for the year is negative, you do not need to file a tax return
However, if you have already withheld taxes or estimated tax payments, you will need to file a tax return so that any overpayment or underpayment can be settled
set from February 16th to March 15th of the following year
Failure to file a tax return will result in penalties
If you are required to file a tax return and fail to do so by the deadline, you will incur the following penalties and have to pay extra taxes
- Failure to declare taxable income will result
in a penalty tax of 15% to 20%. - If you file or pay taxes after the deadline,
a late payment penalty of 2.4% to 14.6% will - In cases of serious negligence such as concealing income, a heavy
penalty tax of 35% to 40% will be imposed. - If you file your return after the deadline, or if there are missing documents or concealment of information,
your blue return status may be revoked or your special deductions may be reduced.
Profits from overseas forex trading are also subject to Japanese income tax, so be sure to file your tax return correctly if you make a profit
You need to file a tax return if you are a salaried employee and your annual income exceeds 200,000 yen
If a salaried employee earns more than 200,000 yen from overseas forex trading, they are required to file a tax return
Salaried employees
| Target audience | - Individuals who receive a salary from their employer, such as company employees or part-time workers. - Individuals who have income from public pensions, etc. |
|---|
Generally, if your only income is your company salary, you do not need to file a tax return because your company handles the calculation and payment of your taxes
However, if a company employee earns more than 200,000 yen from overseas forex trading, or if a housewife or student earns more than a certain amount, they are required to file a tax return .
Please note that the conditions for filing a tax return include miscellaneous income other than that from overseas forex trading. If you have miscellaneous income other than from overseas forex trading, be sure to include it in the total
If you are a business owner, etc., when it exceeds 480,000 yen
If you are self-employed or do not receive a salary, you are required to file a tax return if you earn more than 480,000 yen from overseas forex trading.
Non-salaried workers
| Target audience | Unemployed individuals, self-employed individuals, housewives, students, and others who do not receive a salary |
|---|
Unlike salaried employees who receive wage income, non-salaried individuals are required to file a tax return if their miscellaneous income (profit minus expenses, etc.) exceeds 480,000 yen .
Unrealized gains and losses are not subject to taxation
Since only actual realized profits and losses are subject to taxation, unrealized gains and losses on positions that have not yet been closed are not subject to taxation.
Please note that swap points, which are received to hedge against interest rate and exchange rate fluctuations, will be subject to taxation once they are received and credited to your account
However, cashback is subject to taxation
Cashback received from FX brokers through account opening or deposit campaigns is subject to taxation
Generally, cashback is considered temporary income.
The amount subject to tax is calculated by multiplying the amount obtained by subtracting the special deduction of 500,000 yen from the temporary income by half. If you have other temporary income, you are required to file a tax return if the total taxable amount exceeds 200,000 yen
| Formula for calculating temporary income : Total temporary income - Total expenses - Special deduction (500,000 yen) = Temporary income |
| Formula for calculating the taxable amount of temporary income : Temporary income × 1/2 = Taxable amount of temporary income |
Furthermore, since temporary income is subject to comprehensive taxation, the taxable amount of temporary income is added to other income such as salary income when calculating taxes .
your taxable amount of temporary income exceeds 200,000 yen for salaried employees, or 480,000 yen for non-salaried employees, you are required to file a tax return.
Losses cannot be carried forward
Losses incurred from overseas forex trading cannot be carried forward to the following year and therefore cannot be offset against income in subsequent years
However, if you use multiple overseas forex brokers, you are allowed to offset income from other overseas forex brokers in the same year and calculate your taxable income accordingly
Furthermore, losses incurred in domestic FX trading can be carried forward for up to three years
| If you use three overseas forex brokers in the same yearCompany A: Loss of 500,000 yen Company B: Profit of 1,000,000 yen Company C: Profit of 300,000 yen
Company A's loss of 500,000 yen, Company B's profit of 1,000,000 yen, and Company C's profit of 300,000 yen are offset, and taxes are calculated on 800,000 yen for that year |
| If you incur losses in overseas forex tradingYear 1: Loss of 500,000 yen Year 2: Profit of 1,000,000 yen
Since losses from overseas forex trading cannot be carried forward, taxes will be calculated on the 1 million yen in the second year |
| If you incur losses in domestic FX tradingYear 1: Loss of 500,000 yen Year 2: Profit of 1,000,000 yen
Since losses from domestic FX trading can be carried forward, we deduct 500,000 yen from the 1 million yen profit in the second year, and then calculate the tax on the remaining 500,000 yen |
Please note that overseas and domestic forex trading have different tax systems, so profits and losses from each cannot be offset against each other
If you want to keep your taxes down, declare your expenses
To minimize taxes on overseas forex trading, make effective use of your expenses
Taxes are calculated by multiplying the tax rate by the income amount, which is the profit from overseas forex trading minus expenses and income deductions
Therefore, if you incur expenses related to overseas forex trading, you can reduce your taxable income by deducting those expenses from your profits, resulting in lower taxes.
The more deductions you can subtract from your income, the greater the tax-saving effect and the lower your taxes will be. Therefore, when filing your tax return, be sure to include income deductions other than business expenses
Expenses are based on those "linked to sales."
When accounting for expenses related to overseas forex trading, you should base your calculations on expenses that are used specifically for overseas forex trading and are linked to sales.
Therefore, personal consumables used in daily life and private meal expenses are not recognized as business expenses
Furthermore, while the full cost of a computer and internet access dedicated to overseas forex trading can be claimed as an expense, if you use it for both personal and business purposes, you can calculate the usage ratio and only include the amount used for overseas forex trading as an expense.
If you are unsure whether an item qualifies as a deductible expense, contact your nearest tax office to confirm
How to file your tax return for overseas forex trading! A detailed explanation of the process

This guide provides a clear explanation, using images, of how to file your tax return for overseas forex trading
① Before filing your tax return, prepare your "My Number" and "Annual Profit and Loss Statement," etc
When filing your tax return, prepare the following four items
- Documents that show your My Number
- Annual trading report for overseas forex trading
- Receipts for necessary expenses
- Various deduction certificates
Those who have had their year-end tax adjustments done by their employer and have submitted the necessary deduction certificates do not need to submit them
<How to generate an annual profit and loss statement >
An annual profit and loss statement is a document that summarizes your trading history for a year, showing your profits and losses for that year
When filing your tax return, you'll need to have a grasp of your annual profit and loss, so be sure to prepare that beforehand
Here, we'll explain how to output data when trading using MT4 or MT5
- Open MT4/MT5 from your overseas forex account
- Open the "Account History" tab, right-click, and select "Specify Period"
- Specify the period for filing your tax return (for example, if you are filing your tax return in 2023, the period is from January 1st to December 31st, 2022).
- Right-click and select "Save Report" to save the data
This completes the output of the annual profit and loss statement
If you are a company employee, you will need your withholding tax statement
If you are a company employee or have other salary income, you will need your withholding tax statement
A withholding tax statement is a document issued by your employer that details your annual salary and other income
When filing your tax return for overseas forex trading, you will need to include your salary income in the calculation of your income tax, so be sure to prepare in advance
② Access the National Tax Agency's tax return preparation page
Next, we will prepare the necessary documents for filing your tax return
Access the tax return preparation section click "Start Preparation"

This section explains how to print and submit your tax return. Click "Print and Submit"

③ Select "Income Tax" and start creating
Select the tax return form you wish to prepare
Select the year for which you will be filing your tax return, and then click "Income Tax"

Before you begin preparing your tax return, you will need to select "date of birth" and whether or not they have "income other than salary."

Now we'll actually begin the tax return filing process
④ Enter your salary income and other details according to the instructions on the screen
Enter your income or earnings
Please enter your income if you have any income other than salary or overseas forex trading

Those with salary income should enter their information based on the withholding tax statement issued by their employer

This completes the input regarding salary income, etc
<What is a specific expense deduction?>
The specific expense deduction is a system that allows you to deduct business-related expenses from your income when you personally bear those expenses
If you personally bear the costs of the following seven items, you can claim a deduction as a specific expense
- Commuting expenses that are normally considered necessary
- Transportation expenses when working away from the usual workplace
- Relocation expenses due to job transfer
- Training fees for skills and knowledge necessary for the job
- Costs to obtain qualifications necessary for the job
- Transportation costs for employees working away from home to return home
- Books, clothing, and entertainment expenses necessary for work
However, proof from the employer is required to claim any of the specified expense deductions
If you are eligible for the specific expense deduction, "Yes" for "Apply" and enter the information.

⑤ Enter the actual profits you earned from FX trading
When filing your tax return, enter any income earned from overseas forex trading, etc., in the "Miscellaneous Income" section

Enter your income from overseas forex trading, necessary expenses, and information about the overseas forex broker

This concludes the input regarding income from overseas forex trading
<Check the official website for the address of the overseas exchange
When registering your income from overseas forex trading, you will need to enter the address and name of the overseas forex broker. Please check the official website of the overseas forex broker and enter the information there
If you're unsure, please contact customer support
⑤ Enter any applicable deductions
If you are claiming various deductions such as medical expense deductions, life insurance premium deductions, or spousal deductions, please enter the applicable information

Since income deductions such as life insurance premium deductions and spousal deductions declared in your employer's year-end tax adjustment are already reflected in your withholding tax statement, you do not need to enter them here
⑥ Check the tax amount and proceed to the next step
Once you have finished entering your income deductions, the amount you need to pay will be displayed

Check the calculation results and proceed to the next step
⑦ Review the information regarding resident tax and business tax and proceed to the next step
After confirming the calculation result of the payment amount, please check the "Matters concerning resident tax and business tax."

After reviewing the content, we will proceed to the next step
<If you don't want your employer to find out about your side job, choose "pay it yourself">
In the resident tax input field, you can select the method for collecting resident tax on income other than salary and public pensions

If you choose special collection, the amount of resident tax incurred on your salary income and overseas forex trading will be notified to your employer, which could potentially reveal your side job
If you don't want your side job to be discovered, choose "pay yourself"
⑧ Enter personal information such as address and name
You will need to enter personal information such as the address and name of the person filing the tax return

This completes the input of your personal information
⑨ Print your tax return
Finally, print out your tax return form and submit it to your nearest tax office either in person or by mail

This completes the tax return filing process
If you're unsure, it's a good idea to ask a tax accountant to handle it for you
If you are unsure about how to declare your income, expenses, and deductions, it is recommended to ask a tax accountant to handle your tax return for you
By hiring a tax accountant, you can not only file the correct tax return but also expect highly effective tax-saving strategies
Furthermore, you can consult with them about any concerns you may have, such as your business performance or tax reforms, and receive advice, which can help alleviate future anxieties
However, since this will incur fees for the tax accountant, you should consider whether the benefits outweigh the costs before hiring one
Q&A regarding how to file tax returns for overseas forex trading

Here are four frequently asked questions regarding how to file your tax return for overseas forex trading
- What is the tax rate on overseas forex trading?
- Do I need to file a tax return even if I haven't withdrawn any money from my overseas forex broker?
- Will I get away with not paying taxes?
- What is the going rate for completely outsourcing tax filing to a tax accountant?
Let's check the items that interest you
Q. What is the tax rate on overseas forex trading?
Profits earned from overseas forex trading are subject to comprehensive taxation , and therefore income tax is calculated using a progressive tax system.
Progressive taxation is a system where the higher your taxable income, the higher your income tax will be. Tax rates range from 5% to 45% depending on your taxable income
Income tax table
| Taxable income | tax rate | Deduction amount |
|---|---|---|
| From 1,000 yen to 1,949,000 yen | 5% | 0 yen |
| From 1,950,000 yen to 3,299,000 yen | 10% | 97,500 yen |
| From 3,300,000 yen to 6,949,000 yen | 20% | 427,500 yen |
| From 6,950,000 yen to 8,999,000 yen | 23% | 636,000 yen |
| From 9,000,000 yen to 17,999,000 yen | 33% | 1,536,000 yen |
| From 18,000,000 yen to 39,999,000 yen | 40% | 2,796,000 yen |
| Over 40,000,000 yen | 45% | 4,796,000 yen |
Source: Income Tax Rates | National Tax Agency
Please note that the local tax on overseas forex trading is a flat rate of 10%
Q. Do I need to file a tax return even if I haven't withdrawn any money from my overseas forex broker?
Taxable income that requires filing a tax return is based on realized profits and losses. Therefore, even if you haven't withdrawn funds from your overseas forex broker, if your position has been closed and a profit has been generated, you are subject to filing a tax return.
Furthermore, if the total amount of taxable gains and losses is more than 200,000 yen for salaried employees and more than 480,000 yen for non-salaried employees, a tax return must be filed
Q. Will I get away with not paying taxes?
Even if the income is taxable from overseas forex trading, if you don't file a tax return and pay taxes, the Japanese tax authorities will find out you've evaded taxes.
This is because Japanese tax authorities are supposed to be able to track income generated overseas through overseas remittance reports and the CRS (Common Reporting Standard)
A Report of Overseas Remittances is a notification form that you submit to the tax office when you deposit profits earned from overseas forex trading into a domestic account for use in Japan. The Critical Risk Management System (CRS) is a system designed to prevent tax evasion and avoidance using foreign financial institutions
If you fail to file a tax return, you will incur penalties such as a non-filing penalty tax, late payment penalty tax, and heavy penalty tax, and you will have to pay additional taxes
- Failure to declare taxable income will result
in a penalty tax of 15% to 20%. - If you file or pay taxes after the deadline,
a late payment penalty of 2.4% to 14.6% will - In cases of serious negligence such as concealing income, a heavy
penalty tax of 35% to 40% will be imposed. - If the filing deadline is missed, or if there are missing documents or concealment,
the approval for blue return filing may be revoked or special deductions may be reduced.
Profits earned from overseas forex trading must also be declared to the Japanese tax authorities, so if you have made a profit, be sure to file your tax return properly
Q. What is the going rate for completely outsourcing tax filing to a tax accountant?
The typical fee for hiring a tax accountant to file your tax return is often determined based on your sales figures.
- Sales under 5 million yen: Commission 100,000 yen
- Sales of 5 million yen or more but less than 10 million yen: Commission of 150,000 yen
- Sales of ¥1,000 or more, but less than ¥15,000,000: Commission of ¥200,000
By entrusting your tax filing to a tax accountant, you can reduce the amount of work involved in filing your tax return and ensure that you pay your taxes correctly
summary

This page explains how to file your tax return for overseas forex trading and how to avoid losing money on taxes
Finally, let's review the important points
- Tax returns are generally filed between February 16th and March 15th of the following year
- Failure to file a tax return will be considered tax evasion and will result in penalties
- If you are a salaried employee, you need to file a tax return if your income exceeds 200,000 yen. If you are not a salaried employee, you need to file a tax return if your income exceeds 480,000 yen
- Losses from overseas forex trading cannot be carried over to the following year
- When an employee files their tax return, they need the withholding tax statement issued by their company
It is also possible to ask a tax accountant to handle your tax return, so if you are unsure or don't want to spend time on it, using a tax return preparation service is recommended
Be aware that incorrect tax declarations or payments may result in penalties and additional tax bills
