Japan Renunciation of Inheritance — 3-Month Deadline, Family Court Filing Process, and What to Do When There Are Debts

Inheriting an estate is not always in an heir's best interest. If the deceased had substantial debts, guarantees, or other liabilities, accepting the inheritance means inheriting those liabilities as well. In such cases, "renunciation of inheritance" (相続放棄) — a formal legal procedure — allows heirs to opt out entirely. This article explains the process, the strict deadline, required documents, and key points to be aware of.

What Is Renunciation of Inheritance?

The Deadline — The 3-Month "Deliberation Period"

An heir must file the renunciation with the family court within 3 months of learning that the inheritance has opened for them (Civil Code, Article 915). This 3-month window is called the "deliberation period" (熟慮期間).

• The 3 months typically run from the day the heir learns of the death of the deceased.
• If 3 months is insufficient to investigate the estate, the heir may petition the family court for an extension of the deliberation period (stating reasons).
• If no action is taken within 3 months, the heir is deemed to have accepted the inheritance unconditionally (単純承認), including all debts.
• Using or disposing of any part of the estate before renouncing may constitute "deemed unconditional acceptance" (法定単純承認), which extinguishes the right to renounce.

Step-by-Step Process

• Filing venue
  The family court with jurisdiction over the deceased's last address.
• Who files
  The heir personally (if the heir is a minor, a parent acting as legal representative files on their behalf).
• Submitting the declaration form
  The "Renunciation of Inheritance Declaration Form" (相続放棄申述書) can be submitted in person at the family court or by mail. The form is available for download on the Supreme Court's website.
• Review and inquiry letter
  The family court sends a written inquiry (照会書) asking the heir to confirm their intent to renounce and the reason. The heir responds in writing.
• Receiving the acceptance notice
  If approved, the court sends a "Notice of Acceptance of Renunciation" (相続放棄申述受理通知書). A certified copy of the acceptance (相続放棄申述受理証明書) can be requested separately and is typically required by banks and other institutions.

Key Documents Required

• Renunciation of Inheritance Declaration Form (相続放棄申述書)
• Revenue stamp (収入印紙) of ¥800 per filer
• Return postage (切手) for court correspondence
• Removal notice (除票) from the deceased's residence register, or attached family register slip
• Family register (戸籍謄本) showing the death of the deceased
• Family register of the person filing renunciation
• ※ Additional registers may be needed depending on the filer's relationship to the deceased (child, grandchild, sibling, niece/nephew, etc.)

Effects and Key Considerations

• Inheritance passes to next-in-line heirs
  If all children renounce, inheritance rights pass to the parents (second in line). If no parents survive, to siblings (third in line). Informing next-in-line relatives before filing renunciation helps prevent disputes.
• A management duty may remain
  Under the 2023 Civil Code amendment, a person who renounced but was actually in possession of estate assets must continue to manage those assets with the same care as their own property until an estate administrator is appointed (Civil Code, Article 940).
• Life insurance proceeds and death retirement allowances are not part of the estate
  Life insurance proceeds payable to a named beneficiary, and death retirement allowances from an employer, belong to the named beneficiary personally and can be received even after renouncing the inheritance.
• Renunciation cannot be withdrawn
  Once the family court accepts the renunciation, it cannot be revoked except in cases of fraud or coercion. Decide carefully.

Consult Sakura Central Legal Office

Whether you have inherited debts and need to renounce, are facing a tight deadline, or are unsure whether renunciation or limited acceptance (限定承認) is right for your situation, our administrative scriveners can assist with document preparation and procedural support. Please contact us for a free initial consultation.