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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 23 to 29)

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.

Section 2 Calculating Income in Each Class第二節 各種所得の金額の計算

Subsection 1 Classes of Income and Income in Each Class第一款 所得の種類及び各種所得の金額

Article 23第二十三条

Interest Income(利子所得)
Article 23, paragraph (1)

Interest income means income from interest on public and corporate bonds and Deposits and Savings (other than interest on public and corporate bonds that were the interest portion of public and corporate bonds whose principal portion and interest portion have been separated and are each traded independently), and from distributions of proceeds from Jointly Managed Trusts, Bond Investment Trusts, and Bond-Based Investment Trusts Under Public Offering (hereinafter referred to as "interest and similar income" in this Article).

利子所得とは、公社債及び預貯金の利子(公社債で元本に係る部分と利子に係る部分とに分離されてそれぞれ独立して取引されるもののうち、当該利子に係る部分であつた公社債に係るものを除く。)並びに合同運用信託、公社債投資信託及び公募公社債等運用投資信託の収益の分配(以下この条において「利子等」という。)に係る所得をいう。

Article 23, paragraph (2)

Interest income is the amount of revenue arising from interest and similar income in the year.

利子所得の金額は、その年中の利子等の収入金額とする。

Article 24第二十四条

Dividend Income(配当所得)
Article 24, paragraph (1)

Dividend income means income from dividends of surplus (these are limited to dividends from shares or capital contributions (including any beneficial interest in a Bond-Based Investment Trust other than a Bond-Based Investment Trust Under Public Offering, and including a company bond-type beneficial interest; the same applies in the following Article), and exclude any dividends that result from a decrease in capital surplus, any dividends that are based on a split (meaning a company split by split-off as prescribed in Article 2, item (xii)-9 of the Corporation Tax Act, and including a trust split in connection with a Trust Subject to Corporate Taxation; hereinafter the same applies in this paragraph and the following Article), and any share distribution (meaning a share distribution as prescribed in Article 2, item (xii)-15-2 of that Act; hereinafter the same applies in this paragraph and the following Article)), dividends of profits (these include distributions of monies as prescribed in Article 115, paragraph (1) (Interim Dividends) of the Act on the Securitization of Assets, and exclude dividends based on a split-off and any share distribution), distributions of surplus (but only those related to capital contributions), distributions of monies under Article 137 (Distribution of Monies) of the Act on Investment Trusts and Investment Corporations (other than those specified by Ministry of Finance Order as distributions of monies accompanying a decrease in the total amount of capital contributions or similar (referred to as a "distribution that reduces contributions" in paragraph (1), item (iv) of the following Article)), and interest on funds (meaning interest on funds as prescribed in Article 55, paragraph (1) (Restrictions on Payment of Interest on Funds) of the Insurance Business Act), as well as distributions of proceeds from an Investment Trust (other than a Bond Investment Trust or Bond-Based Investment Trust Under Public Offering) or Specified Trust That Issues Beneficiary Certificates (other than those relating to a qualified distribution in kind as prescribed in Article 2, item (xii)-15 of the Corporation Tax Act; hereinafter referred to as "dividends and similar income" in this Article), which the taxpayer receives from a corporation (other than a corporation in the public interest, etc. as prescribed in Article 2, item (vi) (Definitions) of the Corporation Tax Act or an Association or Foundation without Legal Personality).

配当所得とは、法人(法人税法第二条第六号(定義)に規定する公益法人等及び人格のない社団等を除く。)から受ける剰余金の配当(株式又は出資(公募公社債等運用投資信託以外の公社債等運用投資信託の受益権及び社債的受益権を含む。次条において同じ。)に係るものに限るものとし、資本剰余金の額の減少に伴うもの並びに分割型分割(同法第二条第十二号の九に規定する分割型分割をいい、法人課税信託に係る信託の分割を含む。以下この項及び次条において同じ。)によるもの及び株式分配(同法第二条第十二号の十五の二に規定する株式分配をいう。以下この項及び次条において同じ。)を除く。)、利益の配当(資産の流動化に関する法律第百十五条第一項(中間配当)に規定する金銭の分配を含むものとし、分割型分割によるもの及び株式分配を除く。)、剰余金の分配(出資に係るものに限る。)、投資信託及び投資法人に関する法律第百三十七条(金銭の分配)の金銭の分配(出資総額等の減少に伴う金銭の分配として財務省令で定めるもの(次条第一項第四号において「出資等減少分配」という。)を除く。)、基金利息(保険業法第五十五条第一項(基金利息の支払等の制限)に規定する基金利息をいう。)並びに投資信託(公社債投資信託及び公募公社債等運用投資信託を除く。)及び特定受益証券発行信託の収益の分配(法人税法第二条第十二号の十五に規定する適格現物分配に係るものを除く。以下この条において「配当等」という。)に係る所得をいう。

Article 24, paragraph (2)

Dividend income is the amount of revenue arising from dividends and similar income for the year; provided, however, that if there is any interest paid in the year on a debt that the taxpayer needed to incur in order to acquire shares or other principal that is meant to generate dividend income (other than any interest on a debt that the taxpayer needed to incur in order to acquire Securities which have generated business income or miscellaneous income or anything else specified by Cabinet Order; hereinafter the same applies in this paragraph), the dividend income is the amount of revenue arising from dividends and similar income in the year, less the total amount calculated pursuant to Cabinet Order as the part of the interest payable on the debt in the period during which the taxpayer held the principal in that year.

配当所得の金額は、その年中の配当等の収入金額とする。ただし、株式その他配当所得を生ずべき元本を取得するために要した負債の利子(事業所得又は雑所得の基因となつた有価証券その他政令で定めるものを取得するために要した負債の利子を除く。以下この項において同じ。)でその年中に支払うものがある場合は、当該収入金額から、その支払う負債の利子の額のうちその年においてその元本を有していた期間に対応する部分の金額として政令で定めるところにより計算した金額の合計額を控除した金額とする。

Article 25第二十五条

Amounts Deemed to Constitute Dividends(配当等とみなす金額)
Article 25, paragraph (1)

If monies or any other assets are issued to a Shareholder, Member, or Other Investor in a corporation (other than a corporation in the public interest, etc. as prescribed in Article 2, item (vi) (Definitions) of the Corporation Tax Act or an Association or Foundation without Legal Personality; hereinafter the same applies in this paragraph) due to any of the following circumstances involving the corporation, and the sum total of the monies and the value of assets other than monies (or, for assets relating to a qualified distribution in kind as prescribed in item (xii)-15 of that Article, the amount equivalent to the book value of those assets of the corporation immediately before the issuance) exceeds the part of the corporation's amount of stated capital, etc. as prescribed in item (xvi) of that Article which comes from the shares in or capital contributions to the corporation upon which the issuance of the monies and assets is founded, for the purpose of applying the provisions of this Act, the part of the monies or other assets in excess is deemed to be a dividend of surplus, dividend of profits, distribution of surplus, or distribution of monies as prescribed in paragraph (1) of the preceding Article:

法人(法人税法第二条第六号(定義)に規定する公益法人等及び人格のない社団等を除く。以下この項において同じ。)の株主等が当該法人の次に掲げる事由により金銭その他の資産の交付を受けた場合において、その金銭の額及び金銭以外の資産の価額(同条第十二号の十五に規定する適格現物分配に係る資産にあつては、当該法人のその交付の直前の当該資産の帳簿価額に相当する金額)の合計額が当該法人の同条第十六号に規定する資本金等の額のうちその交付の基因となつた当該法人の株式又は出資に対応する部分の金額を超えるときは、この法律の規定の適用については、その超える部分の金額に係る金銭その他の資産は、前条第一項に規定する剰余金の配当、利益の配当、剰余金の分配又は金銭の分配とみなす。

Article 25, paragraph (1), item (i)

the merger of the corporation (this includes a merger of trusts which involves a Trust Subject to Corporate Taxation but excludes a qualified merger as prescribed in Article 2, item (xii)-8 of the Corporation Tax Act);

当該法人の合併(法人課税信託に係る信託の併合を含むものとし、法人税法第二条第十二号の八に規定する適格合併を除く。)

Article 25, paragraph (1), item (ii)

a split-off from the corporation (other than a qualified company split by split-off as prescribed in Article 2, item (xii)-12 of the Corporation Tax Act);

当該法人の分割型分割(法人税法第二条第十二号の十二に規定する適格分割型分割を除く。)

Article 25, paragraph (1), item (iii)

a share distribution by the corporation (other than a qualified share distribution as prescribed in Article 2, item (xii)-15-3 of the Corporation Tax Act);

当該法人の株式分配(法人税法第二条第十二号の十五の三に規定する適格株式分配を除く。)

Article 25, paragraph (1), item (iv)

redemption of the corporation's stated capital (meaning the issuance of dividends of surplus in connection with shares (but only if this causes a decrease in capital surplus) other than due to a company split by split-off or a share distribution, and a distribution that reduces contributions) or the distribution of residual assets due to the dissolution of the corporation;

当該法人の資本の払戻し(株式に係る剰余金の配当(資本剰余金の額の減少に伴うものに限る。)のうち分割型分割によるもの及び株式分配以外のもの並びに出資等減少分配をいう。)又は当該法人の解散による残余財産の分配

Article 25, paragraph (1), item (v)

the corporation's acquisition of treasury shares or capital contributions to itself (other than acquisition through a purchase on a market operated by a financial instruments exchange as prescribed in Article 2, paragraph (16) (Definitions) of the Financial Instruments and Exchange Act or any other type of acquisition which is provided for by Cabinet Order, and other than acquisition of shares or capital contributions set forth in Article 57-4, paragraph (3), item (i) through (iii) (Special Provisions on Capital Gains Due to Share Exchange) in a case falling under the category of case prescribed in that paragraph);

当該法人の自己の株式又は出資の取得(金融商品取引法第二条第十六項(定義)に規定する金融商品取引所の開設する市場における購入による取得その他の政令で定める取得及び第五十七条の四第三項第一号から第三号まで(株式交換等に係る譲渡所得等の特例)に掲げる株式又は出資の同項に規定する場合に該当する場合における取得を除く。)

Article 25, paragraph (1), item (vi)

cancellation of capital contributions to the corporation (other than the cancellation of acquired capital contributions), refunding of capital contributions to the corporation, refunding of equity due to a member's or other contributor's withdrawal from the corporation, or extinguishment of shares in or capital contributions to the corporation without the corporation's acquiring them;

当該法人の出資の消却(取得した出資について行うものを除く。)、当該法人の出資の払戻し、当該法人からの社員その他の出資者の退社若しくは脱退による持分の払戻し又は当該法人の株式若しくは出資を当該法人が取得することなく消滅させること。

Article 25, paragraph (1), item (vii)

entity conversion by the corporation (but only one on the occasion of which assets other than shares in or capital contributions to the corporation undergoing the entity conversion are issued).

当該法人の組織変更(当該組織変更に際して当該組織変更をした当該法人の株式又は出資以外の資産を交付したものに限る。)

Article 25, paragraph (2)

Even if an acquiring corporation (meaning an acquiring corporation as prescribed in Article 2, item (xii) of the Corporation Tax Act; hereinafter the same applies in this paragraph) or a splitting corporation (meaning a splitting corporation as prescribed in item (xii)-2 of that Article; hereinafter the same applies in this paragraph) has not issued shares (including capital contributions; hereinafter the same applies in this paragraph) or other assets through a merger or company split by split-off to any Shareholder, Member, or Other Investor of the merged corporation (meaning a merged corporation as prescribed in item (xi) of that Article) or to any Shareholder, Member, or Other Investor of the splitting corporation, if the merger or company split by split-off falls under a merger or company split by split-off specified by Cabinet Order as one in which the issuance of shares of the acquiring corporation or the successor corporation in a company split (meaning a successor corporation in a company split as prescribed in item (xii)-3 of that Article; hereinafter the same applies in this paragraph) is found to have been omitted, the provisions of the preceding paragraph apply by deeming, pursuant to Cabinet Order, each such Shareholder, Member, or Other Investor to have been issued shares of the acquiring corporation or successor corporation in a company split.

合併法人(法人税法第二条第十二号に規定する合併法人をいう。以下この項において同じ。)又は分割法人(同条第十二号の二に規定する分割法人をいう。以下この項において同じ。)が被合併法人(同条第十一号に規定する被合併法人をいう。)の株主等又は当該分割法人の株主等に対し合併又は分割型分割により株式(出資を含む。以下この項において同じ。)その他の資産の交付をしなかつた場合においても、当該合併又は分割型分割が合併法人又は分割承継法人(同条第十二号の三に規定する分割承継法人をいう。以下この項において同じ。)の株式の交付が省略されたと認められる合併又は分割型分割として政令で定めるものに該当するときは、政令で定めるところによりこれらの株主等が当該合併法人又は分割承継法人の株式の交付を受けたものとみなして、前項の規定を適用する。

Article 25, paragraph (3)

Cabinet Order prescribes the way of calculating the amount of stated capital, etc. coming from shares and capital contributions as prescribed in paragraph (1) and provides for other necessary particulars concerning the application of the provisions of the preceding two paragraphs.

第一項に規定する株式又は出資に対応する部分の金額の計算の方法その他前二項の規定の適用に関し必要な事項は、政令で定める。

Article 26第二十六条

Real Property Income(不動産所得)
Article 26, paragraph (1)

Real property income means income arising from renting out real property, a right on real property, a vessel, or an aircraft (hereinafter referred to as "real estate and other such property" in this paragraph) (this includes establishing a superficies right or farming right or doing something else that gives another person the use of real estate or other such property) (other than anything falling under the category of business income or capital gains).

不動産所得とは、不動産、不動産の上に存する権利、船舶又は航空機(以下この項において「不動産等」という。)の貸付け(地上権又は永小作権の設定その他他人に不動産等を使用させることを含む。)による所得(事業所得又は譲渡所得に該当するものを除く。)をいう。

Article 26, paragraph (2)

Real property income is gross revenues constituting real property income in the relevant year, less necessary expenses.

不動産所得の金額は、その年中の不動産所得に係る総収入金額から必要経費を控除した金額とする。

Article 27第二十七条

Business Income(事業所得)
Article 27, paragraph (1)

Business income means income arising from commercial farming, fishing, manufacturing, wholesale activities, retail sales, the service industry, or any other commercial activity prescribed by Cabinet Order (other than anything falling under the category of timber income or capital gains).

事業所得とは、農業、漁業、製造業、卸売業、小売業、サービス業その他の事業で政令で定めるものから生ずる所得(山林所得又は譲渡所得に該当するものを除く。)をいう。

Article 27, paragraph (2)

Business income is gross revenues constituting business income in the relevant year, less necessary expenses.

事業所得の金額は、その年中の事業所得に係る総収入金額から必要経費を控除した金額とする。

Article 28第二十八条

Salary Income(給与所得)
5 changes in this article
Article 28, paragraph (1)(給与所得)

Salary income means income from pay, compensation, wages, annual allowances, bonuses, or salary of a similar nature (hereinafter referred to as a "salary or other wage" in this Article).

給与所得とは、俸給、給料、賃金、歳費及び賞与並びにこれらの性質を有する給与(以下この条において「給与等」という。)に係る所得をいう。

Article 28, paragraph (2)(給与所得)

Salary income is the amount remaining after the salary income deduction is applied against revenue from a taxpayer's salary and other wages in the relevant year.

給与所得の金額は、その年中の給与等の収入金額から給与所得控除額を控除した残額とする。

Article 28, paragraph (3)(給与所得)

The salary income deduction prescribed in the preceding paragraph is the amount that each of the following items prescribes for the category of case set forth in the item:

前項に規定する給与所得控除額は、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とする。

Article 28, paragraph (3), item (i)(給与所得)(Salary Income)Changed

if the taxpayer's revenue as prescribed in the preceding paragraph is 1,9003,600,000 yen or less: 650the sum total of 80,000 yen plus 30% of the taxpayer's revenue (or 690,000 yen, if that sum total is less than 690,000 yen);

前項に規定する収入金額が百九三百六十万円以下である場合 六十五万円八万円と当該収入金額の百分の三十に相当する金額との合計額(当該合計額が六十九万円に満たない場合には、六十九万円)

Article 28, paragraph (3), item (ii)(給与所得)(Salary Income)Changed

if the taxpayer's revenue as prescribed in the preceding paragraph is over 1,9003,600,000 yen but not more than 36,600,000 yen: the sum total of 650,1,160,000 yen plus 3020% of the difference arrived at when 1,9003,600,000 yen is deducted from the taxpayer's revenue;

前項に規定する収入金額が百九三百六十万円を超え三六百六十万円以下である場合 六十五百十六万円と当該収入金額から百九三百六十万円を控除した金額の百分の三二十に相当する金額との合計額

Article 28, paragraph (3), item (iii)(給与所得)(Salary Income)Changed

if the taxpayer's revenue as prescribed in the preceding paragraph is over 36,600,000 yen but not more than 6,6008,500,000 yen: the sum total of 1,160760,000 yen plus 2010% of the difference arrived at when 36,600,000 yen is deducted from the taxpayer's revenue;

前項に規定する収入金額が三六百六十万円を超え六百六八百五十万円以下である場合 百七十六万円と当該収入金額から三六百六十万円を控除した金額の百分の二十に相当する金額との合計額

Article 28, paragraph (3), item (iv)(給与所得)(Salary Income)Changed

if the taxpayer's revenue as prescribed in the preceding paragraph is over 6,600,000 yen but not more than 8,500,000 yen: the sum total of 1,760,000 yen plus 10% of the difference arrived at when 6,6001,950,000 yen is deducted from the taxpayer's revenue;.

前項に規定する収入金額が六百六八百五十万円を超え八百五十万円以下である場合 百七十六万円と当該収入金額から六百六十万円を控除した金額の百分の十に相当する金額との合計額九十五万円

Article 28, paragraph (3), item (v)(給与所得)(Salary Income)Removed

if the taxpayer's revenue as prescribed in the preceding paragraph is over 8,500,000 yen: 1,950,000 yen.

前項に規定する収入金額が八百五十万円を超える場合 百九十五万円

Article 28, paragraph (4)(給与所得)

Notwithstanding the provisions of the preceding two paragraphs, if the taxpayer's revenue from salary and other wages in the year is less than 6,600,000 yen, that revenue is taken to be the "amount of salary and other wages" to which Appended Table V refers, and the taxpayer's salary income arising from salary and other wages is equivalent to the amount that, using the Table, a person finds to be the "amount of salary and other wages after the salary income deduction" that the Table gives for the taxpayer's salary and other wages.

その年中の給与等の収入金額が六百六十万円未満である場合には、当該給与等に係る給与所得の金額は、前二項の規定にかかわらず、当該収入金額を別表第五の給与等の金額として、同表により当該金額に応じて求めた同表の給与所得控除後の給与等の金額に相当する金額とする。

Article 29第二十九条

Article 29, paragraph (1)

No English for this provision yet.

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