Article 125Filing a Tax Return If the Taxpayer Has Died Partway Through the Year
第百二十五条（年の中途で死亡した場合の確定申告）
If the circumstances, when a Resident dies partway through the year, constitute a case in which a return under Article 120, paragraph (1) (Filing Income Tax Returns) must be filed in connection with the Resident's income taxes for the year, unless the Resident's heir files a return under paragraph (3), the heir must file a return with the district tax office director, giving information that includes what is set forth in the items of Article 120, paragraph (1) with regard to those income taxes, by the day before that which marks four months' time since the day after the heir learns of the commencement of the succession (or by the start of the heir's Absence From Japan, if the heir becomes Absent From Japan prior to that date; hereinafter the same applies in this Article), as prescribed by Cabinet Order.
If the circumstances, when a Resident dies partway through the year, constitute a case in which it is permissible to file a return under Article 122, paragraph (1) or paragraph (2) (Filing a Return to Receive a Refund) in connection with the Resident's income taxes for the year, unless the Resident's heir is permitted to file a return under the following paragraph, the heir may file a return with the district director, giving information that includes what is set forth in the items of Article 120, paragraph (1) and the items of Article 122, paragraph (1) with regard to those income taxes, as prescribed by Cabinet Order.
If the circumstances, when a Resident dies partway through the year, constitute a case in which it is permissible to file a return under Article 123, paragraph (1) (Filing Tax Returns Showing Losses) in connection with the Resident's income taxes for the year, the Resident's heir may file a return with the district tax office director, giving information that includes what is set forth in the items of paragraph (2) of that Article with regard to those income taxes, by the day before that which marks four months' time since the day after the heir learns of the commencement of the succession, as prescribed by Cabinet Order.
Changes on (Act No. 13 of 2025)
The provisions of the second sentence of Article 120, paragraph (1) apply mutatis mutandis to the information to be given in a return under paragraph (1) or paragraph (2), and the provisions of paragraphs (3) through (7) of that Article apply mutatis mutandis to the filing of a return under the preceding three paragraphs. In such a case, the term "Filing Deadline" in paragraph (5) of that Article is deemed to be replaced with "Filing Deadline (or the day on which the return is filed, if the return is a return of refund claim as prescribed in Article 61, paragraph (1), item (ii) (Special Provisions for Base Period for Calculation of Amount of Delinquent Tax) of the Act on General Rules for National Taxes)", and the term "Act on General Rules for National Taxes" is deemed to be replaced with "that Act".
第百二十条第一項後段の規定は第一項又は第二項の規定による申告書の記載事項について、同条第三項から第七項までの規定は前三項の規定による申告書の提出について、それぞれ準用する。この場合において、同条第五項中「確定申告期限」とあるのは「確定申告期限（当該申告書が国税通則法第六十一条第一項第二号（延滞税の額の計算の基礎となる期間の特例）に規定する還付請求申告書である場合には、当該申告書の提出があつた日）」と、「国税通則法」とあるのは「同法」と読み替えるものとする。
Paragraph (1) applies mutatis mutandis if the person who is required to file a return under paragraph (1) dies prior to the deadline for filing the return without having filed it, and paragraph (2) of the preceding Article applies mutatis mutandis if the person who is permitted to file a return under paragraph (3) dies prior to the deadline for filing the return without having filed it.
Read this with the articles around it
Resident
「居住者」
An individual who has a domicile in Japan, or who has had a residence in Japan continuously for one year or more up to now.
Defined inArticle 2, paragraph (1), item (iii)· applies throughout the law
Filing Deadlinemachine translation
「確定申告期限」
The deadline for filing a final tax return under Article 120, paragraph (1), or, where the person dies or leaves Japan during the year, the deadline under Article 125, paragraph (1) or Article 127, paragraph (1).
Defined inArticle 2, paragraph (1), item (xli)· applies throughout the law
Absence From Japanmachine translation
「出国」
For a resident, ceasing to have a domicile or residence in Japan without first giving notice of a tax agent (納税管理人) under Article 117, paragraph (2) of the Act on General Rules for National Taxes; for a nonresident, ceasing without that notice to have a residence in Japan or, if they had none, ceasing to have a permanent establishment in Japan or ending the business described in Article 161, paragraph (1), item (vi).
Defined inArticle 2, paragraph (1), item (xlii)· applies throughout the law
heirmachine translation
「相続人」
An heir, including, wherever this Act uses the word, a universal legatee (包括受遺者): a person to whom a will leaves all or a share of an estate as a whole, rather than particular property.
Defined inArticle 2, paragraph (2)· applies throughout the law
district director
税務署長
The head of a tax office (税務署), the local office of the National Tax Agency that deals with taxpayers in its district (Act for Establishment of the Ministry of Finance, Article 24). It is the office a person usually deals with: an income tax return is filed with a district director (Income Tax Act, Article 120, paragraph (1)), and reassessments, determinations and the collection of national tax are done by the district director for the taxpayer's current place for tax payment (Act on General Rules for National Taxes, Articles 30 and 43). A person who objects to what a district director has decided can ask that director to look at it again (再調査の請求) or go straight to the National Tax Tribunal (Article 75, paragraph (1), item (i)) — unless the notice of the decision says officials of a Regional Taxation Bureau or of the National Tax Agency investigated, in which case it counts as the regional commissioner's decision, with the same choice, or as the Commissioner of the National Tax Agency's, which can only be challenged by a request for review to the Commissioner (Article 75, paragraph (2)).
Written by AI using Act for Establishment of the Ministry of Finance, Art. 24, Act on General Rules for National Taxes, Arts. 30, 43, 75 and Income Tax Act, Art. 120 as a reference.