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Income Tax Act

所得税法(しょとくぜいほう)

Chapter VI Special Provisions on Returns Filed after the Deadline, Amended Returns, and Similar Matters (Articles 151-5 to 151-6)

The law as Act Partially Amending the Income Tax Act, etc. (Act No. 12 of 2026) leaves it, with the words it changes marked.

The main text is read a page at a time: a chapter to a page, and a long chapter in runs of articles. The whole main text, and the supplementary provisions and appended tables this amendment changes. Those it leaves untouched are on the page for the text in force.

Article 151-5第百五十一条の五

Special Provisions on Returns Filed after the Deadline and Similar Matters upon Division of the Estate or Similar Event(遺産分割等があつた場合の期限後申告等の特例)
Article 151-5, paragraph (1)

The heir of a Resident who has newly come to meet the requirements under which a return must be filed under Article 125, paragraph (1) (Filing a Tax Return If the Taxpayer Has Died Partway Through the Year) because Article 60-3, paragraph (1) (Special Provisions on Capital Gains and Similar Income If Assets Are Transferred to a Nonresident by Gift or Similar Means) has been applied due to a division of the estate or similar event as prescribed in paragraph (1) of the following Article (hereinafter referred to as a "division of the estate or similar event" in this Article) that occurred after the deadline for filing a return under Article 125, paragraph (1) must file a return filed after the deadline for the year that includes the date of the Resident's death within four months from the date on which the division of the estate or similar event occurred, and must pay the amount of tax payable as a result of filing that return filed after the deadline within that time limit.

第百二十五条第一項(年の中途で死亡した場合の確定申告)の規定による申告書の提出期限後に生じた次条第一項に規定する遺産分割等の事由(以下この条において「遺産分割等の事由」という。)により第六十条の三第一項(贈与等により非居住者に資産が移転した場合の譲渡所得等の特例)の規定が適用されたため新たに第百二十五条第一項の規定による申告書を提出すべき要件に該当することとなつた居住者の相続人は、当該遺産分割等の事由が生じた日から四月以内に、当該居住者の死亡の日の属する年分の期限後申告書を提出し、かつ、当該期限内に当該期限後申告書の提出により納付すべき税額を納付しなければならない。

Article 151-5, paragraph (2)

The heir of a Resident who has newly come to meet the requirements under which a return may be filed under Article 125, paragraph (2) because Article 60-3, paragraph (1) has been applied due to the occurrence of a division of the estate or similar event may file a return under that paragraph for the year that includes the date of the Resident's death after the division of the estate or similar event has occurred.

遺産分割等の事由が生じたことにより第六十条の三第一項の規定が適用されたため新たに第百二十五条第二項の規定による申告書を提出することができる要件に該当することとなつた居住者の相続人は、当該遺産分割等の事由が生じた後に、当該居住者の死亡の日の属する年分の同項の規定による申告書を提出することができる。

Article 151-5, paragraph (3)

The heir of a Resident who has newly come to meet the requirements under which a return may be filed under Article 125, paragraph (3) because Article 60-3, paragraph (1) has been applied due to a division of the estate or similar event that occurred after the deadline for filing a return under Article 125, paragraph (3) may file a return filed after the deadline for the year that includes the date of the Resident's death.

第百二十五条第三項の規定による申告書の提出期限後に生じた遺産分割等の事由により第六十条の三第一項の規定が適用されたため新たに第百二十五条第三項の規定による申告書を提出することができる要件に該当することとなつた居住者の相続人は、当該居住者の死亡の日の属する年分の期限後申告書を提出することができる。

Article 151-5, paragraph (4)

If a person who is required to file a return filed after the deadline pursuant to paragraph (1) does not file that return filed after the deadline, the competent district director for the locality in which the taxpayer pays taxes makes a determination of the amount of income, the amount of income tax, and the other information that should have been indicated in that return filed after the deadline.

第一項の規定により期限後申告書を提出すべき者が当該期限後申告書を提出しなかつた場合には、納税地の所轄税務署長は、当該期限後申告書に記載すべきであつた所得金額、所得税の額その他の事項につき決定を行う。

Article 151-5, paragraph (5)

The provisions of the Act on General Rules for National Taxes apply to a return filed after the deadline under paragraph (1) and to a determination under the preceding paragraph as follows:

第一項の規定による期限後申告書及び前項の決定に対する国税通則法の規定の適用については、次に定めるところによる。

Article 151-5, paragraph (5), item (i)

a return filed after the deadline that is filed within the deadline for filing prescribed in paragraph (1) is deemed to be a return filed by the due date as prescribed in Article 17, paragraph (2) (Filing of a Return by the Due Date) of the Act on General Rules for National Taxes;

当該期限後申告書で第一項に規定する提出期限内に提出されたものについては、これを国税通則法第十七条第二項(期限内申告)に規定する期限内申告書とみなす。

Article 151-5, paragraph (5), item (ii)

for a return filed after the deadline that is filed after the deadline for filing prescribed in paragraph (1) and for the determination, the terms "statutory Tax Return due date" and "statutory payment due date" in the provisions of Chapters II through VII (Determination of National Tax Liability and Related Matters) of the Act on General Rules for National Taxes are deemed to be replaced with "the deadline for filing a return filed after the deadline prescribed in Article 151-5, paragraph (1) (Special Provisions on Returns Filed after the Deadline and Similar Matters upon Division of the Estate or Similar Event) of the Income Tax Act".

当該期限後申告書で第一項に規定する提出期限後に提出されたもの及び当該決定については、国税通則法第二章から第七章まで(国税の納付義務の確定等)の規定中「法定申告期限」とあり、及び「法定納期限」とあるのは、「所得税法第百五十一条の五第一項(遺産分割等があつた場合の期限後申告等の特例)に規定する期限後申告書の提出期限」とする。

Article 151-5, paragraph (6)

The right to claim from the national government a refund arising from the filing of a return under the provisions of paragraphs (1) through (3) is extinguished by prescription if it is not exercised for five years from the date on which the division of the estate or similar event occurred.

第一項から第三項までの規定による申告書を提出することによる還付金の国に対する請求権は、遺産分割等の事由が生じた日から五年間行使しないことによつて、時効により消滅する。

Article 151-6第百五十一条の六

Special Provisions on Amended Returns upon Division of the Estate or Similar Event(遺産分割等があつた場合の修正申告の特例)
Article 151-6, paragraph (1)

If, due to any of the following events that has occurred with regard to a Resident to whom the provisions of Article 60-3, paragraphs (1) through (3) (Special Provisions on Capital Gains and Similar Income If Assets Are Transferred to a Nonresident by Gift or Similar Means) have been applied for the income tax for the year that includes the date of commencement of the succession (hereinafter referred to as a "division of the estate or similar event" in this paragraph), there has been an increase or decrease in the Securities and similar interests as prescribed in paragraph (1) of that Article, or contracts for unsettled margin transactions or similar transactions as prescribed in paragraph (2) of that Article or unsettled derivatives transactions as prescribed in paragraph (3) of that Article (referred to as "covered assets" in item (i)), involved in the inheritance or bequest that were transferred to a Nonresident, and as a result grounds as set forth in the items of Article 19, paragraph (1) or the items of paragraph (2) of that Article (Amended Returns) of the Act on General Rules for National Taxes arise with regard to the Resident's income tax for the year that includes the date of commencement of the succession, the Resident's heir must file an Amended Return for the income tax for the year that includes the date of commencement of the succession within four months from the date on which the division of the estate or similar event occurred, and must pay the amount of tax payable as a result of filing that return within that time limit:

相続の開始の日の属する年分の所得税につき第六十条の三第一項から第三項まで(贈与等により非居住者に資産が移転した場合の譲渡所得等の特例)の規定の適用を受けた居住者について生じた次に掲げる事由(以下この項において「遺産分割等の事由」という。)により、非居住者に移転した相続又は遺贈に係る同条第一項に規定する有価証券等又は同条第二項に規定する未決済信用取引等若しくは同条第三項に規定する未決済デリバティブ取引に係る契約(第一号において「対象資産」という。)が増加し、又は減少したことに基因して、当該居住者の当該相続の開始の日の属する年分の所得税につき国税通則法第十九条第一項各号又は第二項各号(修正申告)の事由が生じた場合には、その相続人は、当該遺産分割等の事由が生じた日から四月以内に、当該相続の開始の日の属する年分の所得税についての修正申告書を提出し、かつ、当該期限内に当該申告書の提出により納付すべき税額を納付しなければならない。

Article 151-6, paragraph (1), item (i)

where the provisions of Article 60-3, paragraphs (1) through (3) had been applied on the basis that covered assets involved in an inheritance or bequest had been transferred to Nonresidents in accordance with the shares in inheritance or the proportions of universal bequests under the provisions of the Civil Code (Act No. 89 of 1896) (excluding Article 904-2 (Contributory Portion)), the covered assets have subsequently been divided, and the covered assets transferred to Nonresidents by that division have come to differ from the covered assets treated as having been transferred to Nonresidents in accordance with those shares in inheritance or proportions of universal bequests;

相続又は遺贈に係る対象資産について民法(明治二十九年法律第八十九号)(第九百四条の二(寄与分)を除く。)の規定による相続分又は包括遺贈の割合に従つて非居住者に移転があつたものとして第六十条の三第一項から第三項までの規定の適用がされていた場合において、その後当該対象資産の分割が行われ、当該分割により非居住者に移転した対象資産が当該相続分又は包括遺贈の割合に従つて非居住者に移転したものとされた対象資産と異なることとなつたこと。

Article 151-6, paragraph (1), item (ii)

a change in the heirs due to an affiliation, a judicial decision becoming final and binding concerning the disinheritance of an heir or the rescission of a disinheritance, under Article 787 (Action for Affiliation) or Articles 892 through 894 (Disinheritance of Presumptive Heirs and Related Matters) of the Civil Code, a recovery of inheritance as prescribed in Article 884 (Right to Claim Recovery of Inheritance) of that Code, the rescission of a renunciation of inheritance under Article 919, paragraph (2) (Withdrawal and Rescission of Acceptance and Renunciation of Inheritance) of that Code, or any other event;

民法第七百八十七条(認知の訴え)又は第八百九十二条から第八百九十四条まで(推定相続人の廃除等)の規定による認知、相続人の廃除又はその取消しに関する裁判の確定、同法第八百八十四条(相続回復請求権)に規定する相続の回復、同法第九百十九条第二項(相続の承認及び放棄の撤回及び取消し)の規定による相続の放棄の取消しその他の事由により相続人に異動を生じたこと。

Article 151-6, paragraph (1), item (iii)

the discovery of a will concerning a bequest, or the renunciation of a bequest;

遺贈に係る遺言書が発見され、又は遺贈の放棄があつたこと。

Article 151-6, paragraph (1), item (iv)

the occurrence of an event specified by Cabinet Order as equivalent to the events prescribed in the preceding three items.

前三号に規定する事由に準ずるものとして政令で定める事由が生じたこと。

Article 151-6, paragraph (2)

If the circumstances come to fall under the preceding paragraph and no Amended Return is filed, the competent district director for the locality in which the taxpayer pays taxes makes a Reassessment of the amount of income, the amount of income tax, and the other information that should have been indicated in that return.

前項の規定に該当することとなつた場合において、修正申告書の提出がないときは、納税地の所轄税務署長は、当該申告書に記載すべきであつた所得金額、所得税の額その他の事項につき更正を行う。

Article 151-6, paragraph (3)

The provisions of Article 151-4, paragraph (4) (Special Provisions on Amended Returns If the Acquisition Cost of Securities and Similar Interests Acquired by Inheritance Changes or in Similar Cases) apply mutatis mutandis to an Amended Return under paragraph (1) or a Reassessment under the preceding paragraph. In such a case, the phrase "the deadline for filing prescribed in paragraph (1) or paragraph (2)" in paragraph (4), items (i) and (ii) of that Article is deemed to be replaced with "the deadline for filing prescribed in Article 151-6, paragraph (1) (Special Provisions on Amended Returns upon Division of the Estate or Similar Event)", and the phrase "Article 151-4, paragraph (1) or paragraph (2) (Special Provisions on Amended Returns If the Acquisition Cost of Securities and Similar Interests Acquired by Inheritance Changes or in Similar Cases)" in item (ii) of that paragraph is deemed to be replaced with "Article 151-6, paragraph (1) (Special Provisions on Amended Returns upon Division of the Estate or Similar Event)".

第百五十一条の四第四項(相続により取得した有価証券等の取得費の額に変更があつた場合等の修正申告の特例)の規定は、第一項の規定による修正申告書又は前項の更正について準用する。この場合において、同条第四項第一号及び第二号中「第一項又は第二項に規定する提出期限」とあるのは「第百五十一条の六第一項(遺産分割等があつた場合の修正申告の特例)に規定する提出期限」と、同号中「第百五十一条の四第一項又は第二項(相続により取得した有価証券等の取得費の額に変更があつた場合等の修正申告の特例)」とあるのは「第百五十一条の六第一項(遺産分割等があつた場合の修正申告の特例)」と読み替えるものとする。

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