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Process service · Asia & Pacific

Japan Process Server

Executing Hague Service Convention requests through Japan's Ministry of Foreign Affairs, with full Japanese translation verified page-by-page before service is effected.

HAGUE SIGNATORY SINCE
1970
SERVICE ROUTE (SINCE 2018)
Central Authority Only
TYPICAL TIMELINE
~6 mo.

Hague Service Convention

Party

Central Authority route available

Hague Evidence Convention

Not a party

Evidence needs letters rogatory

Apostille Convention

Party

Documents accepted with an apostille

Translation

Usually required

Into Japanese

Inter-American Convention
Not applicable
Article 10: post and private agents
Declaration on file: some methods restricted
Official languages
Japanese
Capital
Tokyo

Overview

Process Server in Japan: How Service of Process Works

Japan has been a Hague Service Convention signatory since 1970, with the Ministry of Foreign Affairs (MOFA) designated as its Central Authority. For decades, direct postal service was commonly used, but on December 21, 2018, Japan formally objected to Article 10(a), closing that route. Since then, valid service into Japan requires a request through MOFA, which refers the matter to the competent Japanese court for service by a court marshal or Japan's own internal special postal service. Every document must be fully translated into Japanese; both MOFA's Consular Affairs Bureau and the Civil Affairs Bureau of the Supreme Court of Japan review the translation page by page, and any gap results in rejection.

In Japan, how you serve decides whether a U.S. judgment can ever be collected there. A foreign judgment is enforced only through a Japanese execution judgment under Article 24 of the Civil Execution Act, and the Japanese court first checks the four conditions in Article 118 of the Code of Civil Procedure.

Those conditions are: the foreign court had jurisdiction; the defendant was properly served or appeared; the judgment and proceedings do not offend Japanese public order; and there is reciprocity with the foreign country. Japan's Supreme Court held in 1998 that service must comply with any applicable treaty to count, and Japanese courts have refused to recognize foreign judgments where papers were sent without a Japanese translation.

That is why careful plaintiffs use the Central Authority route, with full Japanese translations, whenever the defendant has assets in Japan. Japan's 2018 objection to postal service removed most remaining doubt, and the punitive part of a U.S. judgment may still be refused on public order grounds even after proper service.

Who serves process

Who Can Serve Legal Documents in Japan

In Japan, service is an official act of the courts. For requests from abroad, the Ministry of Foreign Affairs, Japan's Central Authority, sends the documents to the competent court, which serves them by special postal service under Article 49 of the Mail Act, with the postal worker preparing a report of service, or through a court marshal.

Japan objected to postal service under Article 10(a) on December 21, 2018, and it also opposes service under Article 10(b) and (c). Service through the Central Authority is therefore the reliable route. Japan requires a full Japanese translation of every document, and Japan's Supreme Court has held that improper service can block enforcement of a foreign judgment in Japan.

For defendants in Tokyo or elsewhere in Japan, the usual starting point is a statement of claim with a summons to appear; orders, notices and enforcement papers follow later in a case. Defendants may be anywhere from Tokyo to Kyushu & Okinawa, and we cover the whole country.

Proof you receive: certificate or sworn affidavit

The Japanese court that carried out service sends back the Hague Certificate of Service, together with a bill for any costs to be reimbursed.

01

MOFA Central Authority Submission

We prepare and transmit the Hague request to Japan's Ministry of Foreign Affairs, which refers it to the competent Japanese court for service by marshal or Japan's internal postal service — the only valid route since Japan's 2018 objection to Article 10(a).

02

Full Japanese Translation & Page-Verification

MOFA and the Supreme Court's Civil Affairs Bureau check every page of a submitted translation before service proceeds. We prepare complete, verification-ready Japanese translations to avoid the rejections that incomplete filings routinely trigger.

03

Case Tracking to Certificate of Service

We track the request from MOFA referral through court-level execution to the final Article 6 certificate of service, keeping counsel informed at each stage of Japan's multi-agency review process.

The rules

Japan Service of Process Rules

The rules that govern service in Japan:

RuleWhat it covers
Mail Act Art. 49Special postal service with a report of service
Hague Art. 10Japan opposes 10(a) (since 2018), 10(b) and 10(c)
CCP Art. 118Four conditions for recognizing a foreign judgment
Civil Execution Act Art. 24Execution judgment needed to enforce a foreign judgment
Supreme Court, 28 Apr. 1998Service must comply with the applicable treaty

Treaties

Hague Service Convention and Japan

Japan is a party to the Hague Service Convention, so documents can be sent to its Central Authority, which arranges service and returns a Certificate of Service. Japan has made a declaration on Article 10, which limits service by post or by private agents, so we confirm which methods are open before choosing one.

Japan is not a party to the Hague Evidence Convention, so requests for witness testimony or documents go through letters rogatory.

Service routes

How to Serve Legal Documents in Japan: Routes and Timelines

Pick by deadline and by how much formality your court needs. We'll recommend one when we review your case.

Most common

Hague Central Authority

A formal request to Japan's Central Authority, which arranges service and returns an official certificate.

FRCP 4(f)(1)

~6 mo.
Restricted

Private agent or postal service

Japan has made a declaration on Article 10, so we check which direct methods remain open first.

FRCP 4(f)(1) · Hague Art. 10

Depends on the declaration
When others fail

Court-ordered service

Your court orders another method, such as email, that is reasonably likely to give notice.

FRCP 4(f)(3)

Depends on your court's motion schedule

Timeframes are typical, not guaranteed. They depend on the location, how easy the person is to find and how busy the authorities are.

Formal route

Hague Service in Japan, Step by Step

A Hague request for Japan goes to the Ministry of Foreign Affairs, which sends it to the competent court. Every document needs a full Japanese translation.

  1. Request prepared

    We complete the Hague request form and attach the documents with Japanese translations.

  2. 2

    Central Authority

    The Ministry of Foreign Affairs reviews the request and refers it to the court.

  3. Local service

    The court serves by special postal service or through a court marshal.

  4. 4

    Certificate returns

    The Certificate of Service comes back for filing with your court.

How it works

How to Hire a Process Server in Japan

Use the quote form or our request page to send the documents and the details of the person to be served.

Start a request
Send the documents

Upload your PDFs with the quote form or our request page.

Tell us about the person

Name, last known address, workplace, phone and a description all help.

We confirm the route

We recommend a method, arrange any translation, and confirm cost and timing before work starts.

Service and proof

Updates as the request progresses, then proof of service for your court.

Good to know

Serving Court Papers in Japan: What to Know

Service decides enforcement

Under Article 118 of Japan's Code of Civil Procedure, a judgment against a defendant who was not properly served and did not appear cannot be enforced in Japan.

Translation is not optional

Japan requires full Japanese translations for Central Authority service, and Japanese courts have refused recognition where documents arrived only in a foreign language.

Punitive damages

Japanese courts may refuse to enforce the punitive part of a U.S. award as contrary to Japanese public order, even when the compensatory part is enforced.

Serving the U.S. subsidiary

U.S. courts sometimes allow service on a Japanese company's U.S. subsidiary or counsel under Rule 4(f)(3), but that won't satisfy Article 118 if you later need to enforce in Japan.

Rates

Japan Process Server Cost and Rates

Quoted per person or business and per address. Send us the address for an exact price.

Rush service

Priority surcharge, quoted with the address

Local agent service

Where permitted; quoted per address

Japanese translation

Per page, by certified legal translators

Locate / skip trace

Flat fee when the address is unknown

Notary and copies

Billed at local rates

Status updates

Included as the request progresses

Proof of service

Included; notarization on request

Court filing

Quoted per filing, if you need proof filed for you

Coverage

Process Server Coverage Across Japan

Kanto, Tohoku & Hokkaido

Tokyo, Kanagawa, Chiba, Saitama, Ibaraki, Tochigi, Gunma, Fukushima, Miyagi, Iwate, Akita, Yamagata, Aomori, Hokkaido

Kansai & Chubu

Osaka, Kyoto, Hyogo, Nara, Shiga, Wakayama, Mie, Aichi, Gifu, Shizuoka, Nagano, Niigata, Toyama, Ishikawa, Fukui, Yamanashi

Chugoku & Shikoku

Hiroshima, Okayama, Yamaguchi, Shimane, Tottori, Ehime, Kagawa, Kochi, Tokushima

Kyushu & Okinawa

Fukuoka, Nagasaki, Kumamoto, Oita, Miyazaki, Kagoshima, Saga, Okinawa

FAQs

Process Server Japan: Frequently Asked Questions

Can't find your answer? Call 855-505-9155.

Can I still serve a Japanese defendant by mail from the United States?

No. On December 21, 2018, the Government of Japan formally objected to Article 10(a) of the Hague Service Convention, closing the direct postal service route. A defendant served this way can now successfully challenge the service.

Who is Japan's Central Authority?

The Ministry of Foreign Affairs (MOFA). MOFA refers incoming requests to the competent Japanese court, which then effects service either through a court marshal or Japan's internal special postal service under the Mail Act.

Is translation required?

Yes, and it is checked closely. All documents must be translated into Japanese, and MOFA's Consular Affairs Bureau together with the Supreme Court's Civil Affairs Bureau verify the translation page by page. Any deficiency results in the request being rejected and returned.

How long does service take in Japan?

Most requests are processed within the Convention's general six-month benchmark, though complex cases or translation deficiencies can extend that timeline.

Has Japan been a Hague Service Convention member for a long time?

Yes, Japan has been a party to the Convention since 1970, one of the longer-standing signatories, though its 2018 objection to Article 10(a) meaningfully changed the valid service methods going forward.

Will a U.S. judgment be enforceable in Japan?

Only if a Japanese court grants an execution judgment, which requires the four conditions in Article 118 of the Code of Civil Procedure, including proper service or the defendant's appearance. Service through the Central Authority with Japanese translations is the safest way to meet that condition.

Can we serve the Japanese company's U.S. subsidiary instead?

Sometimes, if your U.S. court allows it under Rule 4(f)(3) or state law. It can move your case forward, but it may not count as proper service in Japan if you later need to enforce the judgment against Japanese assets.

Sources and further reading

Treaty information checked against the HCCH and U.S. State Department tables in October 2026. This page is general information, not legal advice; rules change, so we confirm the current position for every request.

Need a Process Server in Japan?

Send us the papers and the address. We'll confirm the route, cost and timing before anything is served.

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