If you are an expat working in Japan, you likely see a “Nenkin” deduction on your paycheck every month. This contribution is for Japan’s public pension system. For many foreigners, the big question is, How much do you get back?

If you leave Japan permanently, you can claim a partial refund. This is officially called the Lump-sum Withdrawal Payment. This guide will explain exactly how to calculate your refund, the eligibility rules, and how to get your money back.

What is the Nenkin System?

Every resident in Japan aged 20 to 59 must join the pension system. Most expats fall into one of two categories:

National Pension (Kokumin Nenkin): For students, freelancers, or the self-employed.

Employees’ Pension (Kosei Nenkin): For those working at companies with salary deductions.

Who is Eligible for a Refund?

To get your nenkin back, you must meet these four conditions:

・You do not hold Japanese nationality.
・You paid into the system for at least six months.
・You no longer have a registered address in Japan.
・You have never qualified for Japanese pension benefits before.

Important: You must apply within two years of leaving Japan.

The “5-Year Cap” Rule Change

Previously, the refund was capped at 36 months (3 years) and as of 2026, the cap has been extended to 60 months (5 years). Some new regulations may even allow long-term workers to claim up to 96 months (8 years) of contributions back.

The 20% Income Tax Trap

When you receive your nenkin refund, the government automatically deducts a 20.42% income tax making you initially receive only about 80% of your total payment.
Can you get this 20% back?
Yes, However, you cannot claim it directly from outside Japan. You must appoint a Tax Representative residing in Japan to file a tax return for you.

Detailed Steps to Claim Your Refund

You must follow these steps carefully to ensure you receive your money.

Step 1: Before Leaving Japan

・Submit a Move-out Notice: Go to your local municipal office and file a Tenshutsu-todoke. This deregisters your address and ends your pension coverage.
・Appoint a Tax Representative: Find a friend or professional in Japan to be your Tax Representative. Someone who will claim the 20% tax withheld from your refund later.
・Get Your Pension Number: Make sure you have a copy of your Basic Pension Number.

Step 2: After Arriving in Your Home Country

・Wait for De-registration: You must no longer have an address in Japan to apply.
・Fill Out the Application: Download the “Lump-sum Withdrawal Payment” form from the JPS website. It is available in multiple languages.
・Prepare Your Bank Details: You need a bank account that can receive international transfers. Provide your SWIFT/BIC code and IBAN if applicable.

Step 3: Mail the Documents to Japan

Mail your package to the Japan Pension Service in Tokyo. Include these items:

・A copy of your passport (pages with your name, date of birth, and departure stamp).
・Your Basic Pension Number document.
・A copy of your deleted residence record (Juhyo) or a document showing your Resident Register Code.
・Bank verification documents (e.g., a voided check or bank statement).

Step 4: Receive the Payment and Tax Refund

・The 80% Payment: After 4 to 6 months, JPS will transfer about 80% of your refund to your bank.
・The 20% Tax Refund: JPS will mail you a “Notice of Payment”. Send the original document to your Tax Representative in Japan and get them tol file a tax return at your last local tax office to claim the remaining 20% for you.

How Much Nenkin Do You Get Back?

The refund amount depends on your pension type and how long you worked in Japan.

1. National Pension Refund

For the National Pension, the amount is a fixed sum based on the months you paid. As of 2026, the estimated amounts are as follows:

Contribution Period	Refund Amount (Approx. JPY)
6 – 11 months	¥50,940
12 – 17 months	¥101,880
24 – 29 months	¥203,760
36 – 41 months	¥305,640
60 months or more	¥509,400

2. Employees’ Pension Refund

For company employees, the formula is more complex. It uses your Average Standard Remuneration (ASR). This is your average monthly salary plus bonuses.

The formula is: Your Payout = Average Monthly Income × Payout Rate

The Payout Rate is determined by your total months of coverage:
・6 months: 0.5
・12 months: 1.1
・36 months: 3.3
・60 months (5 years): 5.5

Example: If your average salary was ¥300,000 and you worked for 3 years (36 months), your estimated refund would be ¥300,000 × 3.3 = ¥990,000.

Visa Case-By-Case Insights

Your visa type often determines how you pay into the system and what you can claim.

・Work Visas (Engineer/Specialist in Humanities/Intra-company Transferee):

Most company employees are covered by the Employees’ Pension Insurance (EPI). Your employer deducts premiums directly from your salary and pays half the cost. This is the easiest way to stay compliant.

・Business Manager Visa:

Business managers are responsible for their own enrollment and their employees’ contributions. Late payments can negatively impact your visa renewal and future PR applications.

・Spouse or Dependent Visas:

If you are the spouse of a company employee, you may be a “Category 3” insured person. In this case, you are covered by the system without paying individual premiums.

・Highly Skilled Professional (HSP) Visa:

HSP holders must be very careful with payment timing. Immigration reviews their tax and pension records carefully during the fast-track PR process.

The 10-Year Rule: Continuous Stay vs. Intervals

Japan requires 10 years of contributions to qualify for a lifetime pension. Your strategy changes depending on your total time in Japan.

Case 1: Staying for 7 to 10 Years Continuously

If you have less than 10 years of coverage, you can claim the Lump-sum Withdrawal Payment. However, the refund is currently capped at 60 months (5 years). If you stay for 9 years and then withdraw, you effectively lose 4 years of contributions.

Case 2: 10+ Years of Stay

Once you reach 10 years of payments, you are no longer eligible for a refund. Instead, you have earned the right to receive a Japanese pension when you turn 65. This applies even if you move back to your home country.

Case 3: Staying 7 to 10 Years with Intervals

What if you worked in Japan, left for a few years, and then returned? The Japan Pension Service totals your coverage periods. If your combined periods reach 10 years, you qualify for a pension. Furthermore, Japan has Social Security Agreements with many countries. These agreements allow you to “totalize” your pension years from both countries. For example, 7 years in Japan and 3 years in the USA may equal 10 years for eligibility.

Is Withdrawing a Good Idea?

While getting a large cash refund is tempting, consider the downsides. Japan has Social Security Agreements with many countries. If your country is on the list, the years you worked in Japan can often count toward your home country’s pension.

Once you take the nenkin lump-sum refund, your entire enrollment history in Japan is erased. You will lose any future rights to a Japanese old-age pension.

Resources:
・Japan Pension Service: Official Lump-sum Withdrawal Guide
・Ministry of Foreign Affairs: Visa Types and Requirements
・Japan Pension Service: Social Security Agreements by Country
・Nenkin Net: Online Pension History Access

Take Away

Summary Table

Feature	Detail
Max Period	Up to 60 months (5 years)
Tax	20% deducted (Refundable via representative)
Deadline	Apply within 2 years of departure
Requirement	Minimum 6 months of contributions

Understanding nenkin is essential for any expat in Japan. Whether you want a refund or a lifetime pension, your payment history is the key. Always pay on time to protect your visa and financial future.

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