Japanese Inheritance Procedures for Heirs Living Outside Japan Koshin Nakagawa

If a relative has passed away in Japan and you live outside the country, you may have been told that the bank will not release the funds, or that the paperwork cannot proceed without your seal registration certificate. This page explains why that happens and what can be done.

Our office is located in Nagaokakyo City, Kyoto, and has handled inheritance matters for 22 years, including estates with heirs in several different countries. We correspond in English and can work with you entirely by email and post.

Why the procedure stops

Japanese inheritance procedure assumes that every heir signs the estate division agreement (遺産分割協議書, isan bunkatsu kyogisho) with a registered personal seal and attaches a seal registration certificate issued by their local municipal office in Japan.

If you are not registered as a resident in Japan, you cannot register a seal, and no such certificate exists for you. Banks, securities companies and the Legal Affairs Bureau all require it, so the matter comes to a halt.

What replaces the seal certificate

If you hold Japanese nationality

A signature certificate (署名証明, also called サイン証明) issued by a Japanese embassy or consulate general serves in place of the seal certificate. You attend the consulate in person and sign the document in front of a consular officer, who certifies that the signature is yours.

There are two formats. In the first, the certificate is bound together with the signed document itself and sealed across the join, so that the certificate is tied to that specific document. This format is normally required for real estate registration. In the second, the signature alone is certified, without reference to a particular document; this is sometimes accepted by banks.

For an estate division agreement, the bound format is the safer choice. Requirements differ between institutions, so the format should be confirmed with the receiving institution before you make the appointment.

If you live far from the nearest Japanese consulate, a signature certificate prepared by a local notary public may be accepted instead for real estate registration purposes, under long-standing guidance from the Ministry of Justice.

You will also usually need a certificate of residence abroad (在留証明), also issued by the consulate, in place of a Japanese residence certificate.

Because you remain recorded in the Japanese family register (戸籍, koseki), proof of your relationship to the deceased can be obtained from the municipality holding the register.

If you are not a Japanese national

Heirs who are not Japanese nationals have no Japanese family register. Your relationship to the deceased is instead established through documents such as birth and marriage certificates issued in your country, and an affidavit sworn before a notary public or a Japanese consular officer. Depending on the receiving institution, an apostille may be required for documents notarised abroad.

Former Japanese nationals are, as a rule, outside the scope of consular signature certificates, although some consulates will issue one where the purpose is a Japanese inheritance procedure. Practice varies between posts, so this needs to be checked individually.

Which country's law applies

Where the deceased was a Japanese national, Japanese law governs the succession, regardless of the nationality or residence of the heirs. Where the deceased held another nationality, or where there is real property outside Japan, the law of another country may also come into play. This should be determined at the outset rather than after documents have been collected.

Deadlines you should be aware of

Japanese procedure runs on fixed time limits, and correspondence with an overseas heir can easily take several months.

Renunciation of inheritance must be filed with the family court within three months of learning of the succession. The deceased's final income tax return is due within four months. Inheritance tax must be declared and paid within ten months. Registration of inherited real estate became compulsory on 1 April 2024 and must be completed within three years of learning of the acquisition.

Starting early matters more in cross-border cases than in any other kind.

What we can do for you

We can trace the family register and identify all heirs, correspond with you in English, advise which documents you need and where to obtain them, prepare the estate division agreement, and carry out the bank and securities procedures in Japan. We can act as your point of contact in Japan throughout.

Real estate registration is handled by a judicial scrivener (司法書士) and inheritance tax filing by a certified tax accountant (税理士), both working with us, while our office coordinates the whole matter.

Please note the limits of our role. A gyoseishoshi lawyer (行政書士) is a nationally licensed legal professional authorised to prepare and submit documents of this kind, but is not permitted to represent a party in a dispute. If the heirs fall into disagreement, we will refer you to an attorney (弁護士).

Consultation

There is no charge for consultations until you instruct us. Enquiries from overseas are welcome, and we are glad to begin by email so that you can explain the situation in writing rather than by telephone across time zones. Everything you tell us is covered by our professional duty of confidentiality.


Sozoku Omoiyari Sodanshitsu (Nakagawa General Legal Affairs Office) Koshin Nakagawa, Gyoseishoshi Lawyer 13-6 Kawaradani, Chohoji, Nagaokakyo City, Kyoto 617-0812, Japan Tel +81-75-955-0307 (9:00–18:00 Japan Standard Time) https://compliance21.com/inheritance/

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