Japan Pension Lump-Sum Withdrawal: The Complete Guide
Everything you need to know about withdrawing your Japanese pension when leaving Japan — eligibility, calculations, tax reclaim, and practical steps.
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What Is the Pension Lump-Sum Withdrawal?
When you work in Japan, you contribute to the public pension system. If you leave Japan permanently before reaching retirement age, you can withdraw a portion of those contributions as a lump-sum payment (脱退一時金, dattai ichijikin).
This system exists because Japan's pension system does not have bilateral social security agreements with every country. Without the lump-sum withdrawal, your contributions would effectively be lost when you leave Japan.
The amount you receive depends on which pension system you belonged to, your average salary, and how many months you contributed.
Kosei Nenkin vs Kokumin Nenkin
Japan has two main pension systems, and they work very differently for lump-sum withdrawals:
Pension Types Comparison
| Feature | Kosei Nenkin (厚生年金) | Kokumin Nenkin (国民年金) |
|---|---|---|
| Who pays | Company employees | Self-employed, students, unemployed |
| Monthly contribution | 18.3% of salary (split with employer) | Flat ¥16,980/month (2024) |
| Tax on lump-sum | 20.42% withheld at source | No tax withheld — full amount paid |
| Calculation basis | Average salary × multiplier | Fixed ¥16,980 × contribution months / 12 |
| Maximum period | 119 months (~10 years) | 119 months (~10 years) |
⚠ Important: Kosei Nenkin has 20.42% income tax withheld. This tax is fully reclaimable, but you must appoint a tax representative in Japan to file the refund claim.
Kokumin Nenkin has no withholding tax — you receive the full calculated amount directly.
Eligibility Requirements
To qualify for the lump-sum withdrawal, you must meet ALL of these conditions:
Eligibility Checklist
- 1
You are not a Japanese citizen
Foreign nationals only. Japanese citizens are not eligible for lump-sum withdrawal. - 2
You contributed to the pension for at least 6 months
This is the minimum period. Less than 6 months = no lump-sum at all. - 3
You contributed for less than 10 years (119 months)
If you contributed 120+ months (10 years), you are eligible for a Japanese pension at retirement age instead. The lump-sum withdrawal caps at 119 months. - 4
You have left Japan or are in the process of leaving
You must have deregistered your residence (転出届, tenshutsu todoke) at your city hall. You cannot apply while still living in Japan. - 5
You apply within 2 years of leaving Japan
The deadline is strict. The 2-year clock starts from the day after your residence status ends. Miss this window and you lose eligibility permanently.
How the Kosei Nenkin Lump-Sum Is Calculated
The formula for Kosei Nenkin (Employees' Pension) uses your average standard monthly remuneration (ASMR) during your contribution period:
Gross Lump-Sum = ASMR × Payment Rate × Contribution Months
Net Lump-Sum = Gross × (1 − 0.2042)
Key details:
- ASMR: Your average monthly salary during contributions. Capped at ¥650,000 — even if you earned more, the calculation uses ¥650,000.
- Payment Rate: Based on your contribution months. Ranges from 0.5 (6–11 months) to 5.5 (114–119 months). Full table available in our calculator.
- 20.42% tax: Withheld at source. Can be reclaimed through a tax representative (see section below).
How the Kokumin Nenkin Lump-Sum Is Calculated
Kokumin Nenkin (National Pension) is simpler — no tax withheld, and the calculation is based on a fixed contribution amount that changes each fiscal year:
Gross Lump-Sum = (Monthly Contribution × Total Months) / 12 × Payment Rate
The monthly contribution amount varies by fiscal year (April–March). For example, FY2023 was ¥16,520/month, and FY2024 is ¥16,980/month. Our calculator handles these yearly variations automatically.
How to Reclaim the 20.42% Withholding Tax
If you were in Kosei Nenkin, 20.42% is withheld from your lump-sum payment. This tax is fully refundable, but the process requires a representative in Japan.
Tax Reclaim Process (in chronological order)
- 1
Appoint a tax representative (納税管理人, nozei kanrinin)
Before leaving Japan, choose someone you trust who still lives in Japan — a friend, former colleague, or a professional service. File Form "Application for Appointment of Tax Agent" (納税管理人届出書) at your local tax office.
⚠ This MUST be done before you leave Japan. Contact a licensed professional if you need help.
- 2
Receive your lump-sum payment
After your application is processed by the Japan Pension Service, the net amount (gross minus 20.42%) is transferred to your overseas bank account. - 3
Tax representative files your tax return
Between February 16 and March 15 of the year AFTER you receive the payment, your tax representative files a Japanese tax return (確定申告, kakutei shinkoku) claiming the refund of the 20.42% withholding tax. - 4
Receive the tax refund
The tax office processes the return and transfers the refund (the 20.42% that was withheld) to your tax representative's Japanese bank account. They then forward it to you. - 5
File residence tax refund (if applicable)
In some cases, residence tax (10%) may have also been withheld. This is reclaimed through your former municipality — your tax representative handles this separately.
⚠ Important: The tax refund process typically takes 3–6 months. Plan accordingly and maintain good communication with your representative. For specific tax advice, consult a licensed tax professional (税理士, zeirishi).
Required Documents
When applying for the lump-sum withdrawal, you will need:
- Application form (脱退一時金請求書) — available from the Japan Pension Service website
- Copy of your passport — photo page and the page showing your final departure stamp
- Proof of pension enrollment — your Nenkin Techo (年金手帳, pension handbook)
- Bank account details — your overseas bank account for the transfer
- Certificate of residence deregistration — from your city hall (転出証明書)
Frequently Asked Questions
Can I get the lump-sum if I have PR (permanent residency)?+
I contributed to both Kosei Nenkin and Kokumin Nenkin. Can I claim both?+
How long does the process take?+
Can I get the lump-sum if my country has a social security agreement with Japan?+
Is the lump-sum taxable in my home country?+
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Open Pension Calculator →Disclaimer: This guide is for informational purposes only. Pension laws and tax rates change. Always verify with the Japan Pension Service and a qualified tax professional before making decisions.