Childsupport Law OfficeTokyo, JapanBook a free consultation
+81 50-6871-7273Weekdays 9:00–17:00 JSTFirst 30 minutes at no charge

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佐々木 裕介
チャイルドサポート法律事務所・行政書士事務所 代表
初回30分の無料相談を実施しています。
チャイルドサポートは、子連れ離婚と養育費の取り決め・回収を取り扱う法律事務所・行政書士事務所です。
離婚後の回収まで一つの窓口で対応します。ぜひご相談ください。

All figures include Japanese consumption tax. US dollar figures are indicative, converted at ¥150 = US$1 and reviewed quarterly. The amount payable is the yen figure.


Consultation

First 30 minutesNo charge
Thereafter¥44,000 per hour — approx. US$290

There is no condition attached to the free first 30 minutes. If your question turns out to be one we cannot help with, we will tell you that within those 30 minutes and there will be nothing to pay.


Divorce and related family matters

RetainerSuccess fee
Divorce — negotiation¥660,000
approx. US$4,400
¥660,000 + 11% of the property division you receive
Divorce — mediation or litigation¥880,000
approx. US$5,870
¥660,000 + 11% of the property division you receive
Child support or marital expenses
claimed together with the divorce
¥220,000
approx. US$1,470
¥220,000 + 16.5% of three years’ child support
Child support or marital expenses only
no divorce claim
¥440,000
approx. US$2,930
¥220,000 + 16.5% of three years’ child support
Where parental authority or visitation is contested+ ¥220,000
approx. US$1,470
—

Custody, visitation, handover of a child and change of parental authority are covered by the divorce fee above where we act for you in the divorce itself. The additional retainer in the last row applies only where those points are contested.


Divorce by agreement — drafting support

If you and your spouse can agree the terms yourselves, we put them into a legally sound written agreement. Under this service we act for you only and do not negotiate with your spouse.

Drafting the divorce agreement in Japanese
with unlimited revisions for three months
¥165,000
approx. US$1,100
Extension of drafting support
two further months
¥66,000
approx. US$440
English translation of the agreement
optional
¥110,000
approx. US$730
Attending the notary office as your representative¥69,600
approx. US$460
Consultations by Zoom during the engagement¥44,000 per hour
approx. US$290

The notary’s own fee is separate. It is set by government regulation according to the amounts in the agreement, and we tell you the expected amount once the terms are settled.

We act for one spouse only. Your spouse may attend the notary office in person or appoint their own representative.


Two worked examples

The tables above set out each component. What people actually want to know is what the components add up to. Here are two, worked through.

These show how the arithmetic works. They are not an estimate for your case, and the amounts recovered in them are figures chosen to make the calculation legible — not a prediction of what you would receive.

Example 1 — divorce by negotiation, with child support

Your spouse agrees to divorce. Property division of ¥6,000,000 comes to you, and child support is agreed at ¥60,000 a month.

On signing the engagement letter
Divorce — negotiation, retainer¥660,000
Child support claimed with the divorce, retainer¥220,000
¥880,000approx. US$5,870
On conclusion
Divorce, success fee¥660,000
11% of ¥6,000,000 property division¥660,000
Child support, success fee¥220,000
16.5% of three years’ child support (¥60,000 × 36 = ¥2,160,000)¥356,400
¥1,896,400approx. US$12,640
Total in fees¥2,776,400approx. US$18,510

Expenses — notary fees, postage of originals, translation — are on top of this and are listed below.

Example 2 — child support only, after the divorce is done

You are already divorced. Child support was never agreed, or was agreed and is not being paid. It is settled at ¥50,000 a month.

On signing the engagement letter
Child support only, retainer¥440,000approx. US$2,930
On conclusion
Child support, success fee¥220,000
16.5% of three years’ child support (¥50,000 × 36 = ¥1,800,000)¥297,000
¥517,000approx. US$3,450
Total in fees¥957,000approx. US$6,380

What moves these numbers

  • The retainer is fixed at the outset and does not change with the result. It is the largest item you commit to before you know how the matter goes.
  • The percentage components move with the amount. Halve the property division in Example 1 and the total falls by ¥330,000.
  • Mediation or litigation raises the divorce retainer from ¥660,000 to ¥880,000. If negotiation is tried first and then mediation is filed, you pay the difference, not both.
  • Where parental authority or visitation is contested, add ¥220,000 to the retainer.

We will put the figures for your own matter in writing before you sign anything.


Compensation claims brought on their own

Where you claim compensation (isharyo) separately from a divorce, the fee is calculated on the amount at stake.

Amount at stakeRetainerSuccess fee
Up to ¥3,000,0008.8%17.6%
¥3,000,000 – ¥30,000,0005.5% + ¥99,00011% + ¥198,000
¥30,000,000 – ¥300,000,0003.3% + ¥759,0006.6% + ¥1,518,000
Over ¥300,000,0002.2% + ¥4,059,0004.4% + ¥8,118,000
  • Minimum retainer: ¥660,000 for litigation, ¥440,000 for mediation. For most claims the minimum is what applies.
  • The retainer and success fee for mediation and out-of-court settlement may be reduced to two thirds of the figures above.
  • Where mediation or settlement talks are followed by litigation, the retainer for the litigation is the difference between what you have already paid and the figure above — you do not pay twice.

Work charged by the hour

Two questions in a cross-border case cannot be scoped in advance, because the answer depends on documents we have not seen yet.

Which country’s law applies to your case¥44,000 per hour — approx. US$290
Whether a Japanese order can be enforced where your spouse lives¥44,000 per hour — approx. US$290

We will give you a revised estimate before exceeding five hours. You will not receive an open-ended bill.


When each fee is due

Consultation feeAt the end of the consultation
RetainerOn signing the engagement letter, before work begins
Hourly workMonthly, in arrears
Success feeOn conclusion — when the divorce is registered, the agreement is signed, or the court’s decision becomes final
Drafting support and translationOn signing the engagement letter. The three months run from the date of payment
Extension of drafting supportAt the start of the two-month extension
Attendance at the notary officeWhen the notary appointment is arranged

The retainer is not refunded if the matter does not succeed. It pays for the work, not for the result. We would rather you knew that before you instruct us than afterwards.

When money moves

  1. First meeting
    ConsultationThe first 30 minutes are at no charge, with no condition attached. If we cannot help, we say so within those 30 minutes and there is nothing to pay.
  2. On signing
    RetainerDue on signing the engagement letter, before work begins. It pays for the work, not for the result, and is not refunded if the matter does not succeed.
  3. Monthly, if any
    Hourly workOnly for the two questions that cannot be scoped in advance. You receive a revised estimate before five hours are exceeded.
  4. On conclusion
    Success feeWhen the divorce is registered, the agreement is signed, or the court’s decision becomes final.

Court fees, notary fees, translation, postage and travel are additional. We tell you the expected amount before each one is incurred.


What is not included

These are paid by you in addition to the fees above. We will tell you the expected amount before each one is incurred.

  • Court filing fees and stamp duties
  • Notary fees, where a notarial deed is drawn up
  • Postage — including international post of original documents. A power of attorney for court proceedings must reach the court in original form
  • Translation and certification of documents
  • Travel expenses, where attendance outside Tokyo is required

How to pay

Consultation feeCredit card — VISA / Mastercard
Retainer, hourly work and success feeBank transfer · credit card (VISA / Mastercard)

We invoice in Japanese yen. If you pay by card, your card issuer converts at its own rate. Bank transfer costs you least on the larger amounts, and we will send you the account details when the fee falls due.


Who will be handling your matter

Yusuke Sasaki — attorney (bengoshi) and gyoseishoshi.
LL.M., Durham University · Freshfields Bruckhaus Deringer, 2015–2020 · Head of Legal and Compliance, Paidy Inc., 2020–2025.

Three things follow from that, and they are what you are paying for.

You speak with the attorney, in English. Not through an interpreter. When you ask whether your spouse’s foreign pension forms part of the marital property, the answer requires reading the Japanese statute, the treatment of foreign assets, and your own account documents. An interpreter can convey that answer. They cannot reach it — and their fee is charged separately from the lawyer’s.

Documents, mediation and enforcement are handled in one office. This office is registered both as a law office and as a gyoseishoshi office — in Japanese practice, two separate professions with separate scopes. Your divorce agreement, your notarial deed, your family court mediation and, if it comes to it, enforcement against the other party’s salary do not change hands at the point the matter becomes difficult.

Cross-border questions are the work, not an exception to it. Which country’s law applies, what happens when a parent leaves Japan, whether a Japanese order can be enforced abroad — these are the questions this practice is built around.

How payment works

The first 30 minutes are at no charge, so there is nothing to pay before you know whether we can help.

WhatHow it is paidWhen
Initial consultation (30 min)No charge—
Consultation beyond 30 minutes, and hourly workCredit card (Visa or Mastercard)At the time
Retainer and later feesBank transferAs set out above

You do not have to send an international wire

We hold receiving accounts in US dollars, Japanese yen, pounds sterling and euro, so for most clients the payment leaves as a domestic transfer rather than an international one.

Where you are paying fromWhat you sendWhat it costs you
United StatesA domestic ACH transfer — routing number and account number, like any US paymentNothing
United KingdomA domestic transfer — account number and sort codeWhatever your bank charges for a normal UK payment
EurozoneA SEPA transfer to an IBANWhatever your bank charges for a normal SEPA payment
ElsewhereInternational transferYour bank’s usual charge

This matters more than it sounds. A conventional wire to a Japanese bank is typically charged twice — once by your own bank and again by the correspondent banks in between — and the amount deducted is not visible to you until it arrives short. Sending a retainer of several hundred thousand yen should not cost you a fee you cannot see in advance.

Transfer details are given on the invoice.

⚠️ We never send bank details by unprompted email, and we will never ask you to redirect a payment to a different account. If you receive a message that appears to do either, telephone us on +81 50-6871-7273 before acting on it.

Before you book: Before Your Consultation — the questions we ask you to answer beforehand, and why each one matters. If you are outside Japan, Instructing Us From Outside Japan sets out what can be done by email and what cannot.