Lump-Sum Withdrawal: Reclaiming the 20.42 Percent Withholding
Japan withholds 20.42 percent of your Employees Pension lump sum before it ever leaves the country. Most of that withholding comes back through a separate tax filing, but only if you appoint a representative before departure and file for it.1
Procedures, fees, and requirements can change. Confirm current details at the National Tax Agency site. This article is general information, not tax advice; for your specific case, consult a licensed tax accountant.
Overview
The round-trip has three beats: the Japan Pension Service pays the lump sum net of 20.42 percent withholding (as of 2026-01; confirm current figures with the National Tax Agency), your appointed 納税管理人 (nōzei kanrinin, "tax representative") files an elective return the next year, and the over-withheld portion lands back with you.12 Typical net recovery reaches 90 percent or more of the gross lump sum (as of 2026-02; practitioner-described band, not a promise).3
This article covers the withholding side only. Eligibility, the cap, timing, and the totalization trade-off live in the siblings.
Why the withholding happens
The lump sum is Japan-source income classified as retirement income. Paid within Japan to a nonresident, it faces separate withholding at source unless the recipient elects otherwise.42
Only Employees Pension is withheld
Withholding bites lump-sum withdrawal payments of Employees Pension Insurance only.1 National Pension lump sums arrive whole, with no reclaim to file.15
That split surprises mixed-record households. Confirm which track each payment belongs to before budgeting the departure payout.
What 20.42 percent comprises
The rate is 20.42 percent including Special Income Tax for Reconstruction (as of 2026-01; confirm current figures with the National Tax Agency).1 The arithmetic is a 20 percent base with the 2.1 percent surtax folded in: one practitioner example computes 20,420 yen of tax on the relevant slice of a 400,000 yen figure.2
Without further action, separate withholding completes the taxation and the 20.42 percent stays collected.4 The reclaim below exists precisely to revise that default.
The reclaim: Article 171 elective return
Article 171 of the Income Tax Act lets the nonresident recipient elect to be taxed as if resident on this retirement income, then file a return on that basis.14 The election is what converts over-withholding into a refund.
The retirement deduction that creates the refund
The elective return applies the retirement deduction first, then halves the remainder under the one-half deduction.2 Amounts exceeding 3 million yen after the retirement deduction lose the one-half treatment for short service under post-2022 rules (as of 2026-01; confirm current figures with the National Tax Agency).2
Since the income tax actually owed on the lump sum is small after these deductions, most of the withheld 20.42 percent returns as a refund.2 That gap between flat withholding and graduated liability is the entire economics of the round-trip.
Appointing the nozei kanrinin before departure
A nonresident files the Article 171 return only through a tax agent in Japan.1 Appoint the representative before departure and submit the Notification of Income Tax Agent to the tax office with jurisdiction over your place for tax payment.12
The payment notice arrives at your overseas address months after you leave, so the representative must already exist when it does. Name the agent, fund any expected fee, and agree in advance how the original notice reaches them.3
Nobody abroad can file this return on your behalf without a Japan-based agent already on record. A missed appointment converts a refundable 20 percent into a permanent haircut.
Filing flow and timing
The agent files the return with the original 脱退一時金支給決定通知書 (dattai ichijikin shikyū kettei tsūchisho, "Notice of Lump-sum Withdrawal Payment Determination") attached, in the next-year filing window.12 Practitioner timelines describe roughly 10 to 11 months from document preparation to refund confirmation in clean cases (as of 2026-02).3
| Step | Action | When |
|---|---|---|
| 1 | File the withdrawal application with the Japan Pension Service | After losing resident status; within the 2-year window67 |
| 2 | Appoint the nozei kanrinin and file the agent notification | Before departure12 |
| 3 | Forward the original determination notice to the agent | On receipt abroad13 |
| 4 | Agent files the Article 171 return; refund follows | Next-year filing window12 |
The table carries the timing signal for the whole flow. Start step 2 before step 1 pays out, or the chain stalls at the finish.
Good to know
The reclaim never happens automatically
Without the elective return, separate withholding is final.4 Expecting the difference to arrive on its own is the single most expensive misunderstanding in this process.
No representative means no refund
Only a Japan-based tax agent can file the Article 171 return for a nonresident.12 Departures without an appointed agent leave no procedural path to the money, however strong the underlying claim.
Keep the determination notice, not a copy
The original notice attaches to the return; a copy does not substitute.12 Store it with departure-year tax papers and forward it by tracked mail when the time comes.
See also
- Final-Year Tax Filing and the Nozei Kanrinin
- Zeirishi: Tax Accountants in Japan
- Hiring a Cross-Border Tax Advisor
- Repatriating Pension and Investment Balances at Departure
- Mail-Forwarding at Move and Departure