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Income Tax Act

所得税法(しょとくぜいほう)

Section 2 Calculating Income in Each Class (Articles 42 to 44-3)

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 42第四十二条

Exclusion of Government Subsidies and Their Equivalent in Gross Revenue(国庫補助金等の総収入金額不算入)
Article 42, paragraph (1)

If, in any year, a Resident is issued a national or local government subsidy or benefit or anything that Cabinet Order prescribes as being equivalent thereto (hereinafter referred to as a "government subsidy or its equivalent" in this Article and the following Article) which is meant to be allocated to acquiring or improving Fixed Assets (including forested land; hereinafter the same applies in this Article and the following Article) (but only if the final decision that the Resident need not return the government subsidy or its equivalent is reached by December 31 of that year (or by the time of the Resident's death or Absence From Japan, if the Resident dies or the Resident's Absence From Japan occurs partway through the year; hereinafter the same applies in this paragraph and paragraph (1) of the following Article)), and the Resident acquires or improves Fixed Assets in line with the purpose for which it is issued by December 31 of that year, an amount equal to the amount of the government subsidy or its equivalent issued (or, if the Fixed Assets are Depreciable Assets acquired or improved in a year before that year, the amount calculated pursuant to Cabinet Order based on the amount of the government subsidy or its equivalent) is not included in the gross revenue that is used to calculate that Resident's Income in Each Class.

居住者が、各年において固定資産(山林を含む。以下この条及び次条において同じ。)の取得又は改良に充てるための国又は地方公共団体の補助金又は給付金その他政令で定めるこれらに準ずるもの(以下この条及び次条において「国庫補助金等」という。)の交付を受けた場合(その国庫補助金等の返還を要しないことがその年十二月三十一日(その者がその年の中途において死亡し、又は出国をした場合には、その死亡又は出国の時。以下この項及び同条第一項において同じ。)までに確定した場合に限る。)において、その年十二月三十一日までにその交付の目的に適合した固定資産の取得又は改良をしたときは、その交付を受けた国庫補助金等の額に相当する金額(その固定資産がその年の前年以前の各年において取得又は改良をした減価償却資産である場合には、当該国庫補助金等の額を基礎として政令で定めるところにより計算した金額)は、その者の各種所得の金額の計算上、総収入金額に算入しない。

Article 42, paragraph (2)

If, in any year, a Resident is issued Fixed Assets in lieu of a government subsidy or its equivalent, an amount equal to the value of those Fixed Assets is not included in the gross revenue that is used to calculate that Resident's Income in Each Class.

居住者が各年において国庫補助金等の交付に代わるべきものとして交付を受ける固定資産を取得した場合には、その固定資産の価額に相当する金額は、その者の各種所得の金額の計算上、総収入金額に算入しない。

Article 42, paragraph (3)

The provisions of the preceding two paragraphs apply only if the Tax Return indicates recourse to the application of those provisions, indicates the amount that is not being included in gross revenue pursuant to those provisions, and gives the information prescribed by Ministry of Finance Order.

前二項の規定は、確定申告書にこれらの規定の適用を受ける旨、これらの規定により総収入金額に算入されない金額その他財務省令で定める事項の記載がある場合に限り、適用する。

Article 42, paragraph (4)

Even if no Tax Return is filed or if a Tax Return is filed that is not filled out as referred to in the preceding paragraph, the district tax office director may apply the provisions of paragraph (1) or paragraph (2) on finding there to be unavoidable circumstances for the Resident's failure to file the Tax Return or fill it out in that manner.

税務署長は、確定申告書の提出がなかつた場合又は前項の記載がない確定申告書の提出があつた場合においても、その提出がなかつたこと又はその記載がなかつたことについてやむを得ない事情があると認めるときは、第一項又は第二項の規定を適用することができる。

Article 42, paragraph (5)

Cabinet Order provides for the necessary particulars concerning the calculation of the depreciation allowance provided for in Article 49, paragraph (1) (Calculating Depreciation Allowances for Depreciable Assets; Depreciation Methods) for Fixed Assets that have been subject to the provisions of paragraph (1) or for Fixed Assets as prescribed in paragraph (2) that are acquired by a Resident subject to the provisions of paragraph (1) or paragraph (2); and provides for the necessary particulars concerning the calculation of business income, timber income, capital gains, or miscellaneous income in the event that such a Resident transfers those Fixed Assets.

第一項又は第二項の規定の適用を受けた居住者が第一項の規定の適用を受けた固定資産又はその取得した第二項に規定する固定資産について行うべき第四十九条第一項(減価償却資産の償却費の計算及びその償却の方法)に規定する償却費の計算及びその者がその固定資産を譲渡した場合における事業所得の金額、山林所得の金額、譲渡所得の金額又は雑所得の金額の計算に関し必要な事項は、政令で定める。

Article 43第四十三条

Exclusion of Conditional Government Subsidies and Their Equivalent from Gross Revenue(条件付国庫補助金等の総収入金額不算入)
Article 43, paragraph (1)

If, in any year, a Resident is issued a government subsidy or its equivalent that is meant to be allocated to acquiring or improving Fixed Assets, and the final decision that the Resident need not return the government subsidy or its equivalent has not been reached by December 31 of the relevant year, an amount equal to the government subsidy or its equivalent is not included in the gross revenue that is used to calculate that Resident's Income in Each Class for the year.

居住者が、各年において固定資産の取得又は改良に充てるための国庫補助金等の交付を受ける場合において、その国庫補助金等の返還を要しないことがその年十二月三十一日までに確定していないときは、その国庫補助金等の額に相当する金額は、その者のその年分の各種所得の金額の計算上、総収入金額に算入しない。

Article 43, paragraph (2)

If the final decision is reached that a Resident subject to the provisions of the preceding paragraph need not return the whole or a part of the government subsidy or its equivalent referred to in that paragraph which the Resident has been issued, an amount equal to the part of the government subsidy or its equivalent which is subject to the final decision, less the part that Cabinet Order prescribes out of the amount allocated to acquiring or improving Fixed Assets in line with the purpose for which the government subsidy or its equivalent has been issued, is included in the gross revenue that is used to calculate that Resident's Income in Each Class for the year in which the date of the final decision falls.

前項の規定の適用を受けた居住者が交付を受けた同項の国庫補助金等の全部又は一部の返還を要しないことが確定した場合には、その国庫補助金等の額のうちその確定した部分に相当する金額は、その国庫補助金等の交付の目的に適合した固定資産の取得又は改良に充てられた金額のうち政令で定める金額を除き、その者のその確定した日の属する年分の各種所得の金額の計算上、総収入金額に算入する。

Article 43, paragraph (3)

If it is determined that a Resident subject to the provisions of the preceding paragraph needs to return the whole or a part of the government subsidy or its equivalent referred to in that paragraph which the Resident has been issued, an amount equal to the part of the government subsidy or its equivalent that is subject to the final decision is not included in the necessary expenses or amounts expended that are used to calculate that Resident's Income in Each Class for the year in which the date of the determination falls.

第一項の規定の適用を受けた居住者が交付を受けた同項の国庫補助金等の全部又は一部の返還をすべきことが確定した場合には、その国庫補助金等の額のうちその確定した部分に相当する金額は、その者のその確定した日の属する年分の各種所得の金額の計算上、必要経費又は支出した金額に算入しない。

Article 43, paragraph (4)

The provisions of paragraph (1) apply only if a Tax Return indicates recourse to the application of the provisions of that paragraph, indicates the amount that is not being included in gross revenue pursuant to that paragraph, and gives the information prescribed by Ministry of Finance Order.

第一項の規定は、確定申告書に同項の規定の適用を受ける旨、同項の規定により総収入金額に算入されない金額その他財務省令で定める事項の記載がある場合に限り、適用する。

Article 43, paragraph (5)

Even if no Tax Return is filed or if a Tax Return is filed that is not filled out as referred to in the preceding paragraph, the district tax office director may apply the provisions of paragraph (1) on finding there to be unavoidable circumstances for the Resident's failure to file the Tax Return or fill it out in that manner.

税務署長は、確定申告書の提出がなかつた場合又は前項の記載がない確定申告書の提出があつた場合においても、その提出がなかつたこと又はその記載がなかつたことについてやむを得ない事情があると認めるときは、第一項の規定を適用することができる。

Article 43, paragraph (6)

Cabinet Order provides for the necessary particulars concerning the calculation of a depreciation allowance as prescribed in Article 49, paragraph (1) (Calculating Depreciation Allowances for Depreciable Assets; Depreciation Methods) for Fixed Assets that a Resident subject to the provisions of paragraph (1) uses a government subsidy or its equivalent to acquire or improve; and provides for the necessary particulars concerning the calculation of business income, timber income, capital gains, or miscellaneous income in the event that such a Resident transfers those Fixed Assets.

第一項の規定の適用を受けた居住者が国庫補助金等により取得し、又は改良した固定資産について行うべき第四十九条第一項(減価償却資産の償却費の計算及びその償却の方法)に規定する償却費の計算及びその者がその固定資産を譲渡した場合における事業所得の金額、山林所得の金額、譲渡所得の金額又は雑所得の金額の計算に関し必要な事項は、政令で定める。

Article 44第四十四条

Exclusion of Grants Meant to Cover Relocation Expenses from Gross Revenue(移転等の支出に充てるための交付金の総収入金額不算入)
Article 44, paragraph (1)

If a Resident is issued a national or local government subsidy that is meant to cover the expenses of an administratively necessary relocation, reconstruction, or removal of the Resident's assets or any other similar action (other than the improvement of a Fixed Asset or an action as prescribed by Cabinet Order; hereinafter referred to as the "relocation, reconstruction, or removal" of assets in this paragraph), or is issued an amount of money that is meant to cover the expenses of a relocation, reconstruction, or removal of the Resident's assets due to an expropriation under the Land Expropriation Act (Act No. 219 of 1951) or the occurrence of any other compelling reason prescribed by Cabinet Order, and the Resident allocates the money issued thereto to cover the relocation, reconstruction, or removal of assets for which it has been issued, the amount allocated to cover those expenses is not included in the gross revenue that is used to calculate that Resident's Income in Each Class; provided, however, that this does not apply to an amount equal to the part of the monies allocated to cover expenses which is included in the necessary expenses that are used to calculate the Income in Each Class or the part of the monies so allocated which is found to have been a necessary transfer expense.

居住者が、国若しくは地方公共団体からその行政目的の遂行のために必要なその者の資産の移転、移築若しくは除却その他これらに類する行為(固定資産の改良その他政令で定める行為を除く。以下この項において「資産の移転等」という。)の費用に充てるため補助金の交付を受け、又は土地収用法(昭和二十六年法律第二百十九号)の規定による収用その他政令で定めるやむを得ない事由の発生に伴いその者の資産の移転等の費用に充てるための金額の交付を受けた場合において、その交付を受けた金額をその交付の目的に従つて資産の移転等の費用に充てたときは、その費用に充てた金額は、その者の各種所得の金額の計算上、総収入金額に算入しない。ただし、その費用に充てた金額のうち各種所得の金額の計算上必要経費に算入され又は譲渡に要した費用とされる部分の金額に相当する金額については、この限りでない。

Article 44-2第四十四条の二

Exclusion from Gross Revenue of Economic Benefits from Debt Forgiveness Received Due to an Order Granting Discharge or Similar(免責許可の決定等により債務免除を受けた場合の経済的利益の総収入金額不算入)
Article 44-2, paragraph (1)

If a Resident receives forgiveness of a debt that the Resident owes in a case where there has been an order granting discharge as prescribed in Article 252, paragraph (1) (Requirements for an Order Granting Discharge) of the Bankruptcy Act (Act No. 75 of 2004) or an order confirming a rehabilitation plan, or in any other case where the Resident has lost financial resources and has extreme difficulty in paying debts, the value of the economic benefit received through that forgiveness is not included in the gross revenue that is used to calculate that Resident's Income in Each Class.

居住者が、破産法(平成十六年法律第七十五号)第二百五十二条第一項(免責許可の決定の要件等)に規定する免責許可の決定又は再生計画認可の決定があつた場合その他資力を喪失して債務を弁済することが著しく困難である場合にその有する債務の免除を受けたときは、当該免除により受ける経済的な利益の価額については、その者の各種所得の金額の計算上、総収入金額に算入しない。

Article 44-2, paragraph (2)

In the case referred to in the preceding paragraph, the provisions of that paragraph do not apply to the part of the value of the economic benefit received through the forgiveness of the debt referred to in that paragraph that is equivalent to the sum total of the amounts that the following items prescribe for the categories of case set forth in those items that apply to the Resident referred to in that paragraph (for the amounts prescribed in items (i) through (iv), the amounts calculated as if there were no value of the economic benefit, and for the amount prescribed in item (v), the amount arrived at if gross income, retirement income, and timber income are calculated as if the provisions of that paragraph did not apply):

前項の場合において、同項の債務の免除により受ける経済的な利益の価額のうち同項の居住者の次の各号に掲げる場合の区分に応じ当該各号に定める金額(第一号から第四号までに定める金額にあつては当該経済的な利益の価額がないものとして計算した金額とし、第五号に定める金額にあつては同項の規定の適用がないものとして総所得金額、退職所得金額及び山林所得金額を計算した場合における金額とする。)の合計額に相当する部分については、同項の規定は、適用しない。

Article 44-2, paragraph (2), item (i)

if the Resident receives forgiveness of a debt relating to an operation that is meant to generate real property income: the amount of loss arising in the calculation of real property income for the year that includes the date on which the Resident received the forgiveness;

不動産所得を生ずべき業務に係る債務の免除を受けた場合 当該免除を受けた日の属する年分の不動産所得の金額の計算上生じた損失の金額

Article 44-2, paragraph (2), item (ii)

if the Resident receives forgiveness of a debt relating to a business undertaking that is meant to generate business income: the amount of loss arising in the calculation of business income for the year that includes the date on which the Resident received the forgiveness;

事業所得を生ずべき事業に係る債務の免除を受けた場合 当該免除を受けた日の属する年分の事業所得の金額の計算上生じた損失の金額

Article 44-2, paragraph (2), item (iii)

if the Resident receives forgiveness of a debt relating to an operation that is meant to generate timber income: the amount of loss arising in the calculation of timber income for the year that includes the date on which the Resident received the forgiveness;

山林所得を生ずべき業務に係る債務の免除を受けた場合 当該免除を受けた日の属する年分の山林所得の金額の計算上生じた損失の金額

Article 44-2, paragraph (2), item (iv)

if the Resident receives forgiveness of a debt relating to an operation that is meant to generate miscellaneous income: the amount of loss arising in the calculation of miscellaneous income for the year that includes the date on which the Resident received the forgiveness;

雑所得を生ずべき業務に係る債務の免除を受けた場合 当該免除を受けた日の属する年分の雑所得の金額の計算上生じた損失の金額

Article 44-2, paragraph (2), item (v)

if there is a Net Loss to be deducted, pursuant to the provisions of Article 70, paragraph (1) or paragraph (2) (Deduction for Carryover of Net Loss), in calculating the gross income, retirement income, or timber income for the year that includes the date on which the Resident received the forgiveness of the debt: the amount of the Net Loss so deducted.

第七十条第一項又は第二項(純損失の繰越控除)の規定により、当該債務の免除を受けた日の属する年分の総所得金額、退職所得金額又は山林所得金額の計算上控除する純損失の金額がある場合 当該控除する純損失の金額

Article 44-2, paragraph (3)

The provisions of paragraph (1) apply only if the Tax Return states that the provisions of that paragraph are to be applied, the amount not included in gross revenue pursuant to the provisions of that paragraph, and any other information specified by Ministry of Finance Order.

第一項の規定は、確定申告書に同項の規定の適用を受ける旨、同項の規定により総収入金額に算入されない金額その他財務省令で定める事項の記載がある場合に限り、適用する。

Article 44-2, paragraph (4)

Even if no Tax Return is filed or if a Tax Return is filed that is not filled out as referred to in the preceding paragraph, the district director may apply the provisions of paragraph (1) on finding there to be unavoidable circumstances for the Resident's failure to file the Tax Return or fill it out in that manner.

税務署長は、確定申告書の提出がなかつた場合又は前項の記載がない確定申告書の提出があつた場合においても、その提出がなかつたこと又はその記載がなかつたことについてやむを得ない事情があると認めるときは、第一項の規定を適用することができる。

Article 44-3第四十四条の三

Exclusion of Reduced Foreign Income Taxes from Gross Revenue(減額された外国所得税額の総収入金額不算入等)
Article 44-3, paragraph (1)

If a reduction is made to the amount of foreign income taxes as prescribed in Article 95, paragraph (1) (Foreign Tax Credit) which is used as the basis for calculating the amount to be credited pursuant to the provisions of Article 95, paragraphs (1) through (3) in any of the seven years beginning in the year after that in which a Resident is subject to the provisions of those paragraphs, the amount that Cabinet Order prescribes as corresponding to the part of the reduction to foreign income taxes which is pertinent to the application of the foreign tax credit under that Article in the year in which the date of the decision to reduce those taxes falls is not included in gross revenue that is used to calculate the Resident's real property income, business income, timber income, occasional income, or miscellaneous income for the year. In such a case, the amount arrived at when the amount specified by that Cabinet Order is deducted from the amount of the reduction is included in the gross revenue that is used to calculate the Resident's miscellaneous income for the year.

居住者が第九十五条第一項から第三項まで(外国税額控除)の規定の適用を受けた年の翌年以後七年内の各年においてこれらの規定による控除をされるべき金額の計算の基礎となつた同条第一項に規定する外国所得税の額が減額された場合には、その減額された金額のうちその減額されることとなつた日の属する年分における同条の規定による外国税額控除の適用に係る部分に相当する金額として政令で定める金額は、その者の当該年分の不動産所得の金額、事業所得の金額、山林所得の金額、一時所得の金額又は雑所得の金額の計算上、総収入金額に算入しない。この場合において、その減額された金額から当該政令で定める金額を控除した金額は、その者の当該年分の雑所得の金額の計算上、総収入金額に算入する。

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