You invoiced a Japanese company for ¥500,000. But when the payment arrived, it was only ¥448,950. The missing ¥51,050? That’s Gensen Choshu (源泉徴収) — Japan’s withholding tax system. Your client didn’t shortchange you — they’re legally required to withhold part of your payment and send it directly to the tax office.
The 10.21% deduction is Japanese withholding tax, called Gensen Choshu. It usually means your Japanese client treated you as a Japan tax-resident individual providing a withholding-subject service such as design, writing, translation, or professional work. It is not a platform fee, bank fee, or client discount. For residents, it is a prepayment of income tax that you claim on your Japanese tax return. If you’re a non-resident, the rate is typically 20.42% unless a tax treaty applies.
Quick diagnosis: Does this apply to you?
- Are you a Japan tax resident? → Likely 10.21% withholding. (Note: tax residence is a legal/tax concept based on domicile and length of stay — visa status and nationality alone do not determine it.)
- Are you a non-resident receiving Japan-source income? → Likely 20.42% (or treaty rate)
- Was the payer a Japanese company or business owner with employees? → Check withholding — it is likely if the payer has a withholding obligation and the payment type is covered
- Was the work design, writing, translation, interpretation, lecture, performance, or licensed professional work? → These are the main categories subject to withholding
- Was the deducted amount exactly 10.21% of the service fee (before consumption tax)? → Classic Gensen Choshu
- Did the invoice separately show consumption tax? → If yes, withholding should be on the pre-tax amount only
What Is Gensen Choshu?
Gensen Choshu (源泉徴収) literally means “collection at the source.” It’s Japan’s withholding tax system — the payer deducts income tax from certain payments before sending the money to the recipient, then remits that tax to the tax office on the recipient’s behalf.
Think of it as a prepayment of your income tax. The client acts as a tax collector for the government.
Who Is Subject to Withholding?
If you’re a tax resident of Japan
Withholding applies when a business (company or individual business owner with employees) pays you for specific types of services. Not all freelance payments are subject to withholding — only those that fall into the categories defined by tax law.
Payments subject to withholding (居住者向け):
- Writing fees, manuscript fees, lecture fees (原稿料・講演料)
- Design fees (デザイン料)
- Fees to licensed professionals: lawyers, accountants, tax advisors, patent attorneys, judicial scriveners (弁護士、公認会計士、税理士、弁理士、司法書士 etc.)
- Fees to performers, athletes, and models
- Translation and interpretation fees (翻訳料・通訳料)
These are common freelancer-facing examples, not the full statutory list. See NTA No.2792 for all categories.
Payments NOT subject to withholding:
- Payments for goods (product sales, not services)
- Payments from individuals who don’t run a business (e.g., a private person hiring you)
- Many general business services (marketing consulting, IT consulting, management consulting) — unless the work falls into a specific taxable category
- Payments to corporations (法人) — generally not subject to withholding on service fees (with some exceptions for legal/accounting firms)
If you’re a non-resident of Japan
The rules are broader and the rates are higher. When a Japanese company pays a non-resident for services performed in Japan (or certain types of Japan-source income), they must withhold tax — typically at 20.42%.
This applies to:
- Personal service income earned in Japan
- Royalties and licensing fees
- Rent on Japanese real estate
- Interest and dividends from Japanese sources
Tax treaties between Japan and your home country may reduce or eliminate this withholding. (See the Tax Treaties section below.)
How Much Is Withheld?
For residents: 10.21% (up to ¥1,000,000)
| Payment Amount | Withholding Rate | Calculation |
|---|---|---|
| ¥1,000,000 or less | 10.21% | Payment × 10.21% |
| Over ¥1,000,000 | 20.42% on excess | (Payment − ¥1,000,000) × 20.42% + ¥102,100 |
The 10.21% includes the Reconstruction Special Income Tax (復興特別所得税, 0.21%) that was added after the 2011 earthquake and applies through December 2037.
Example 1: You invoice ¥500,000 for design work.
- Withholding: ¥500,000 × 10.21% = ¥51,050
- You receive: ¥500,000 − ¥51,050 = ¥448,950
Example 2: You invoice ¥1,500,000 for a large project.
- First ¥1,000,000: ¥1,000,000 × 10.21% = ¥102,100
- Remaining ¥500,000: ¥500,000 × 20.42% = ¥102,100
- Total withholding: ¥204,200
- You receive: ¥1,500,000 − ¥204,200 = ¥1,295,800
For non-residents: 20.42%
| Income Type | Withholding Rate |
|---|---|
| Personal service income | 20.42% |
| Royalties, licensing fees | 20.42% |
| Real estate rent | 20.42% |
| Interest (bank, bonds) | 15.315% |
| Listed stock dividends | 15.315% |
Example: A US-based designer invoices a Japanese company ¥1,000,000 for work.
- Without a tax treaty: ¥1,000,000 × 20.42% = ¥204,200 withheld
- With the Japan-US tax treaty (if applicable): may be reduced or exempt
Does consumption tax affect the withholding amount?
Yes — and this matters. If your invoice clearly separates the service fee and the consumption tax, withholding is calculated on the service fee only (excluding consumption tax).
Example: Invoice states “Design fee: ¥500,000 + Consumption tax: ¥50,000 = Total: ¥550,000”
- Withholding: ¥500,000 × 10.21% = ¥51,050 (not ¥550,000 × 10.21%)
But if the invoice just says “Total: ¥550,000 (tax included)” without separating the amounts, withholding is calculated on the full ¥550,000.
Always separate consumption tax on your invoices.
How to Show Withholding on Your Invoice
When you issue an invoice to a Japanese client, you should include the withholding tax calculation. This makes it clear to both parties what will be deducted and what you expect to receive.
Invoice example
| Description | Amount |
| Website design (ウェブサイトデザイン) | ¥500,000 |
| Consumption tax (10%) | ¥50,000 |
| Subtotal | ¥550,000 |
| Withholding tax (源泉徴収税, 10.21%) | −¥51,050 |
| Amount due (お振込金額) | ¥498,950 |
Key points:
- Calculate withholding on the pre-tax service fee (¥500,000), not the total
- Show the withholding as a negative line item
- The “Amount due” is what the client actually transfers to your bank account
- Including the Japanese terms (源泉徴収税, お振込金額) helps Japanese accounting departments process your invoice smoothly
Getting Your Money Back: Claiming Withheld Tax
For Japan tax residents: File your tax return
If you’re a Japan tax resident, withholding tax is not a final tax — it’s a prepayment.
When you file your annual tax return (確定申告, Kakutei Shinkoku), you calculate your actual tax liability for the year. The withholding tax already paid on your behalf is credited against that liability. If too much was withheld, you get a refund.
When you’ll likely get a refund:
- Your total annual income is low enough that your effective tax rate is below 10.21%
- You have significant deductible expenses that reduce your taxable income
- You filed a Blue Return (青色申告) and claimed the ¥650,000 special deduction
- You have dependents or other deductions that lower your tax
For non-residents: Submit treaty forms or claim a refund
If you’re a non-resident, the best approach is to submit the tax treaty application form before payment so that the correct (often 0%) rate is applied upfront. (See the Tax Treaties section below.)
If tax was withheld at 20.42% even though a treaty should have applied, ask the payer or a tax professional which refund procedure applies. The process may require payer-side paperwork and official treaty/refund forms, and can take time — it’s much easier to get the treaty paperwork right before the first payment.
Key documents for tax filing
For employees: Your employer issues a Withholding Tax Slip (源泉徴収票, Gensen Choshu Hyo) at year-end, showing total income and tax withheld. Employers are legally required to issue this.
For freelancers: The relevant document is the Payment Record (支払調書, shiharai chōsho), which summarizes a client’s payments and withholding for the year. Clients submit this to the tax office, but they are not strictly required to give you a copy. However, most clients will provide one if you ask — and you should, because you need the information for your tax return. Even without a 支払調書, you can file using your own records of invoices and payments received.
Tax Treaties: Reduced Rates for Non-Residents
Japan has tax treaties with over 80 countries. These treaties can reduce or eliminate withholding tax on certain types of income.
General pattern
Most of Japan’s tax treaties follow a common pattern for independent personal services and business profits: if you don’t have a Permanent Establishment (PE, 恒久的施設) — a fixed office, branch, or other permanent base — in Japan, your service income is often exempt from Japanese withholding tax.
However, treaty treatment varies significantly by:
- Income type — service fees, royalties, interest, and dividends may each have different rates
- Specific treaty text — each country’s treaty has unique provisions
- Limitation on Benefits (LOB) clauses — some treaties restrict who can claim benefits
- Your specific circumstances — PE status, length of stay, etc.
For example, many treaties with Western countries (US, UK, Germany, France, etc.) reduce service income withholding to 0% when there is no PE in Japan, while royalty rates vary from 0% to 10% depending on the country. Always check the specific treaty between Japan and your country.
See the NTA guidance on submitting treaty application forms for details on the procedure.
How to claim treaty benefits
To apply a reduced treaty rate, you must submit a Treaty Application Form (租税条約に関する届出書) to the tax office through the payer (your Japanese client) before the payment date.
The form depends on the income type — for example, Form 6 or Form 7 for some service-related payments, and separate forms for royalties, dividends, interest, and other income. Confirm the correct form on the NTA treaty procedure page or with the payer’s tax advisor.
Your client submits this form to their local tax office. Once approved, they can withhold at the treaty rate (often 0%) instead of the standard 20.42%.
Timeline: When Is Withholding Tax Paid?
For the payer (your client)
The client must remit the withheld tax to the tax office by the 10th of the month following the payment.
- Pay a freelancer on June 15 → Withholding tax due by July 10
For the recipient (you)
- Withholding happens automatically when you get paid — you don’t need to do anything at that point
- At year-end, collect your payment records (支払調書) from clients, or use your own invoice records
- File your tax return by March 15 of the following year
- If you overpaid, your refund typically arrives within 1–2 months after filing
FAQ
My client didn’t withhold tax. Is that a problem?
It depends. If the payment falls into a taxable category, the payer is legally responsible for withholding. If they didn’t, the tax office may pursue them. However, you’re still responsible for reporting the income on your tax return and paying the correct amount of tax. Contact your client and suggest they confirm with their tax advisor.
I’m a freelancer but my client is an individual, not a company. Do they need to withhold?
Generally no. Individuals who don’t employ others and don’t run a business are not required to withhold tax on payments they make to freelancers. The obligation is on business entities and individual business owners (個人事業主) who have employees.
What if I receive payment from outside Japan?
If a foreign company pays you for services performed in Japan, the foreign company generally does not withhold Japanese tax (they have no obligation under Japanese law). You’re responsible for reporting the income on your Japanese tax return and paying tax yourself.
I’m leaving Japan. What happens to my withheld taxes?
If you leave Japan mid-year, you should file a departure tax return (準確定申告) before you leave, or appoint a tax representative (納税管理人) to file on your behalf. Any overpaid withholding tax will be refunded.
How does withholding work with the Qualified Invoice System (インボイス制度)?
The Qualified Invoice System and withholding tax are separate mechanisms. A Qualified Invoice Issuer (適格請求書発行事業者) still has withholding tax deducted from applicable payments. The invoice registration number appears on the invoice alongside the withholding tax line — they coexist.
I’m a foreign freelancer in Japan. Why did my client deduct 10.21%?
Because your client likely treated you as a Japan tax-resident individual receiving withholding-subject freelance compensation. The 10.21% is income tax (10%) plus Reconstruction Special Income Tax (0.21%) withheld at source. If you are treated as a Japan tax resident for tax purposes and your work falls into a covered category (design, writing, translation, etc.), this withholding is standard. You’ll reconcile it when you file your annual tax return — and if you overpaid, you’ll get a refund.
Can I ask my client NOT to withhold?
No — the client is legally obligated to withhold if the payment falls into a taxable category. It’s not optional for either party. The only exceptions are:
- The payment type is genuinely not subject to withholding
- A tax treaty exemption applies (with the proper form submitted in advance)
- The payer is an individual who isn’t running a business
Sources
This guide is based on official National Tax Agency (国税庁) publications:



