Japan Withholding Tax Explained: Who Pays It and Why July 10 Matters
A few years after becoming involved in a small business in Japan, I received a withholding tax payment slip with July 10 printed as the deadline.
I understood that it was related to tax, but I did not fully understand whose tax I was paying or why the business had to send it to the tax office.
My first thought was simple:
“Isn’t income tax something each person pays for themselves?”
Once I looked into the system, I realized that the business is not paying someone else’s tax from its own money. It is temporarily holding tax that was deducted from certain payments and then forwarding that amount to the Japanese government.
That distinction made the whole process much easier to understand.
This article explains the basic withholding tax system in Japan, why July 10 is important for some small employers, and what business owners should check before making a payment.
This article shares general information based on my experience and official guidance. Tax treatment depends on the type of payment and the circumstances of the payer and recipient, so contact the relevant tax office or a qualified tax professional when you need advice for a specific case.
What Is Withholding Tax in Japan?
In Japanese, withholding income tax is called gensen shotokuzei (源泉所得税).
When a business pays income that is subject to withholding, it calculates the required tax, deducts it before making the payment, and sends the withheld amount to the government.
The person receiving the income therefore receives the amount remaining after tax has been deducted.
The business or individual responsible for deducting and paying that tax is known as the withholding agent. Japan’s National Tax Agency explains that companies, organizations and, in some cases, individuals can become withholding agents when they make payments covered by the system.
A simple example looks like this:
| Payment process | What happens |
|---|---|
| Gross salary or covered fee | The full amount before tax |
| Withholding tax | Deducted by the payer |
| Net payment | Paid to the employee or other recipient |
| Withheld amount | Sent to the tax office by the payer |
The withheld tax is generally credited toward the recipient’s final income tax calculation through a year-end adjustment or an individual tax return.
What Types of Payments May Require Withholding?
Before researching this topic, I assumed withholding applied only to employee salaries.
Salaries and bonuses are common examples, but the system also covers certain retirement payments, professional fees and other specified forms of income.
Examples may include:
Salaries and wages
Bonuses
Retirement allowances
Fees paid to lawyers or tax accountants
Certain writing or lecture fees
Other remuneration specifically covered by Japanese tax rules
However, this does not mean that every payment to every freelancer must automatically have tax withheld.
The rules depend on factors such as the kind of work, whether the recipient is an individual or a company, the payer’s status and whether the recipient is resident in Japan.
That is why it is safer to check the exact payment category rather than assuming that all contractor invoices receive the same treatment.
Why Does the Business Send the Tax?
This was the part I misunderstood at first.
The withheld amount is not usually an additional business expense. The business deducts it from income that belongs to the employee or other recipient, holds it temporarily, and submits it to the tax authority.
For example, imagine a payment subject to withholding:
Gross payment: ¥100,000
Tax withheld: ¥10,000
Amount transferred: ¥90,000
The payer transfers ¥90,000 to the recipient and later sends the ¥10,000 already withheld to the government.
The exact tax calculation cannot be assumed from this simplified example. The applicable rate and method depend on the payment category and other circumstances.
The Standard Payment Deadline
Under the general rule, withheld income tax and the special income tax for reconstruction must be paid by the 10th day of the month following the month in which the covered income was paid.
When the deadline falls on a Saturday, Sunday or national holiday, the next business day becomes the payment deadline.
For example, tax withheld from a salary paid during June would generally be due on July 10.
This monthly rule is the starting point. The well-known twice-yearly deadlines do not automatically apply to every small business.
Why July 10 Is Important for Some Small Employers
Certain withholding agents that regularly pay salaries to fewer than ten employees may apply for approval to use the Special Provision for Due Dates, known in Japanese as nōki no tokurei (納期の特例).
After approval, eligible withholding tax can be paid twice a year rather than every month:
| Payments made during | Payment deadline |
|---|---|
| January through June | July 10 |
| July through December | January 20 of the following year |
The provision is limited mainly to withholding from salaries, retirement allowances and fees paid to certain designated professionals. It does not convert every kind of withholding tax into a twice-yearly payment.
This was the point that finally explained the July 10 date on the payment paperwork I received.
It was not a universal deadline for all withholding tax in Japan. It was connected to the special payment schedule used by an eligible small employer.
Approval Is Required
A business should not simply begin paying twice a year because it has fewer than ten employees.
An application for the special provision must be submitted to the competent tax office. The National Tax Agency also explains when approval is considered effective and notes that approval may be cancelled when tax payments are seriously delayed.
Before relying on the July 10 and January 20 schedule, confirm that:
The application was properly submitted
The provision has taken effect
The payment type is covered
The business continues to meet the employee requirement
Previous payment delays have not affected approval
How Can Withholding Tax Be Paid?
Withheld tax can be paid through methods including e-Tax, an eligible financial institution, a post office or the responsible tax office, together with the required payment statement.
The appropriate statement depends on the kind of income involved. Even when the calculated tax amount is zero, a statement may still need to be submitted in certain salary-related cases.
In practice, I find it helpful to prepare the records before the deadline rather than beginning on July 10 itself.
The documents I check include:
Payroll records
Dates on which payments were actually made
Amounts withheld
Payment categories
Previous payment statements
Confirmation that the totals match the accounting records
A small discrepancy is much easier to investigate when there is still time before the due date.
What Happens If Payment Is Late?
Late payment can result in both delinquent tax and an additional tax for non-payment.
The National Tax Agency states that an additional tax for non-payment is generally calculated at 10% of the unpaid withholding tax. It may be 5% when the taxpayer pays voluntarily after the deadline but before becoming aware that a notice of tax due may be issued. Delinquent tax may also accrue according to the number of days overdue.
Exceptions and relief may apply in limited circumstances, so anyone who discovers a missed payment should contact the tax office promptly rather than waiting for a notice.
How Is This Different from the Year-End Adjustment?
Monthly withholding and the year-end adjustment are related, but they are not the same procedure.
Withholding is the process of deducting tax when salary is paid.
The year-end adjustment, or nenmatsu chōsei (年末調整), compares the total amount withheld during the year with the employee’s final calculated tax amount based on the information available to the employer.
When too much has been withheld, the difference is generally refunded. When too little has been withheld, the difference may be collected.
Most wage earners whose tax is fully settled through the year-end adjustment do not need to file an individual final tax return, although various exceptions apply.
Frequently Asked Questions
Does every small business use the July 10 deadline?
No. July 10 is the deadline for eligible withholding tax covering January through June when the withholding agent has received approval for the special provision.
Does the special provision cover every freelance payment?
No. It covers only specified categories. Many other forms of remuneration remain subject to the standard monthly deadline.
What if the deadline falls on a weekend?
The next business day generally becomes the due date.
Is withholding tax an extra tax paid by the employer?
Usually, no. It is tax deducted from covered income and temporarily held by the withholding agent before being sent to the government.
Where should I ask about my own situation?
Contact the tax office responsible for your business location or consult a qualified Japanese tax accountant.
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Final Thoughts
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When I first saw the July 10 deadline, the paperwork felt more complicated than it really was.
The key was understanding the flow of the money:
The business calculates the tax, deducts it from a covered payment, holds it temporarily and sends it to the government by the correct deadline.
For many approved small employers, July 10 and January 20 are dates worth placing on the calendar well in advance.
I am still learning something new each time tax paperwork arrives, but keeping clear records and checking the official rules has made the process less intimidating.
My wallet may still feel lighter after every tax payment, though.
That part has not changed. 😅
🔍 View E-Tax Withholding Tax Filing Guide
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