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Income Tax Act

所得税法(しょとくぜいほう)

Section 4 Deductions from Income (Articles 77 to 83-2)

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 77第七十七条

Earthquake Insurance Premium Deduction(地震保険料控除)
Article 77, paragraph (1)

If, in any year, a Resident has paid insurance premiums or installments for the portion relating to earthquake or similar damage (excluding those prescribed by Cabinet Order; referred to as "earthquake insurance premiums" in this paragraph) under a casualty insurance policy or similar contract whose subject matter of insurance or mutual aid is a house owned by the Resident or by the Resident's spouse or any other relative whose living expenses are paid from the same resources as the Resident and constantly used as their residence, or assets prescribed in Article 9, paragraph (1), item (ix) (Nontaxable Income) owned by those persons, and under which insurance proceeds or mutual aid benefits are paid to cover the amount of loss incurred with respect to those assets due to damage from fire, destruction, burial or washing away directly or indirectly caused by an earthquake, a volcanic eruption, or a tsunami resulting from either of these (referred to as "earthquake or similar damage" in this paragraph), the total amount of earthquake insurance premiums paid during the year (or, if in that year the Resident has received a distribution of surplus or a refund of rebates under the casualty insurance policy or similar contract, or has appropriated surplus to be distributed or rebates to be refunded under the casualty insurance policy or similar contract to the payment of earthquake insurance premiums, the balance remaining after deducting the amount of that surplus or those rebates (limited to the amount of the portion relating to earthquake insurance premiums), and if that amount exceeds 50,000 yen, 50,000 yen) is allowed as a deduction from the Resident's gross income, retirement income or timber income for the year.

居住者が、各年において、自己若しくは自己と生計を一にする配偶者その他の親族の有する家屋で常時その居住の用に供するもの又はこれらの者の有する第九条第一項第九号(非課税所得)に規定する資産を保険又は共済の目的とし、かつ、地震若しくは噴火又はこれらによる津波を直接又は間接の原因とする火災、損壊、埋没又は流失による損害(以下この項において「地震等損害」という。)によりこれらの資産について生じた損失の額をてん補する保険金又は共済金が支払われる損害保険契約等に係る地震等損害部分の保険料又は掛金(政令で定めるものを除く。以下この項において「地震保険料」という。)を支払つた場合には、その年中に支払つた地震保険料の金額の合計額(その年において損害保険契約等に基づく剰余金の分配若しくは割戻金の割戻しを受け、又は損害保険契約等に基づき分配を受ける剰余金若しくは割戻しを受ける割戻金をもつて地震保険料の払込みに充てた場合には当該剰余金又は割戻金の額(地震保険料に係る部分の金額に限る。)を控除した残額とし、その金額が五万円を超える場合には五万円とする。)を、その居住者のその年分の総所得金額、退職所得金額又は山林所得金額から控除する。

Article 77, paragraph (2)

The casualty insurance policy or similar contract prescribed in the preceding paragraph means a contract that is concluded as a supplement to one of the following contracts, or a single insurance policy or mutual aid contract that becomes valid together with such a contract:

前項に規定する損害保険契約等とは、次に掲げる契約に附帯して締結されるもの又は当該契約と一体となつて効力を有する一の保険契約若しくは共済に係る契約をいう。

Article 77, paragraph (2), item (i)

an insurance policy concluded by a casualty insurance company prescribed in Article 2, paragraph (4) (Definitions) of the Insurance Business Act or a foreign casualty insurance company, etc. prescribed in paragraph (9) of that Article, which is designed to cover damage arising from certain types of unavoidable accidents (other than one set forth in paragraph (6), item (iv) of the preceding Article and other than one that such a foreign casualty insurance company, etc. has concluded outside Japan);

保険業法第二条第四項(定義)に規定する損害保険会社又は同条第九項に規定する外国損害保険会社等の締結した保険契約のうち一定の偶然の事故によつて生ずることのある損害をてん補するもの(前条第六項第四号に掲げるもの及び当該外国損害保険会社等が国外において締結したものを除く。)

Article 77, paragraph (2), item (ii)

a contract for mutual aid in building renovation or mutual aid for fire damage concluded by an agricultural cooperative engaged in business referred to in Article 10, paragraph (1), item (x) (Facilities for Mutual Aid) of the Agricultural Cooperatives Act, or any other contract for similar mutual aid prescribed by Cabinet Order.

農業協同組合法第十条第一項第十号(共済に関する施設)の事業を行う農業協同組合の締結した建物更生共済又は火災共済に係る契約その他政令で定めるこれらに類する共済に係る契約

Article 77, paragraph (3)

A deduction under paragraph (1) is referred to as an earthquake insurance premium deduction.

第一項の規定による控除は、地震保険料控除という。

Article 78第七十八条

Donation Deduction(寄附金控除)
Article 78, paragraph (1)

If, in any year, a Resident makes a specified donation and the amount set forth in item (i) exceeds the amount set forth in item (ii), the amount by which the former exceeds the latter is allowed as a deduction from the Resident's gross income, retirement income or timber income for the year:

居住者が、各年において、特定寄附金を支出した場合において、第一号に掲げる金額が第二号に掲げる金額を超えるときは、その超える金額を、その者のその年分の総所得金額、退職所得金額又は山林所得金額から控除する。

Article 78, paragraph (1), item (i)

the sum total of specified donations made during the year (or an amount that represents 40% of the sum total of the Resident's gross income, retirement income, and timber income for the year, if the sum total of specified donations made during the year exceeds this);

その年中に支出した特定寄附金の額の合計額(当該合計額がその者のその年分の総所得金額、退職所得金額及び山林所得金額の合計額の百分の四十に相当する金額を超える場合には、当該百分の四十に相当する金額)

Article 78, paragraph (1), item (ii)

2,000 yen.

二千円

Article 78, paragraph (2)

A specified donation as prescribed in the preceding paragraph means a donation as follows (other than one made in connection with school enrollment):

前項に規定する特定寄附金とは、次に掲げる寄附金(学校の入学に関してするものを除く。)をいう。

Article 78, paragraph (2), item (i)

a donation to the national or local government (including a port authority prescribed in the Ports and Harbors Act (Act No. 218 of 1950)) (excluding any donation in connection with which the donor is found to be extended exclusive use of the facilities funded by the donation or any other special benefit);

国又は地方公共団体(港湾法(昭和二十五年法律第二百十八号)の規定による港務局を含む。)に対する寄附金(その寄附をした者がその寄附によつて設けられた設備を専属的に利用することその他特別の利益がその寄附をした者に及ぶと認められるものを除く。)

Article 78, paragraph (2), item (ii)

a donation to an incorporated public interest association, incorporated public interest foundation, or any other corporation or group that conducts business in the public interest (including a donation to incorporate the corporation or any other donation made prior to the incorporation thereof which is prescribed by Cabinet Order) which the Minister of Finance designates pursuant to Cabinet Order as meeting the following requirements:

公益社団法人、公益財団法人その他公益を目的とする事業を行う法人又は団体に対する寄附金(当該法人の設立のためにされる寄附金その他の当該法人の設立前においてされる寄附金で政令で定めるものを含む。)のうち、次に掲げる要件を満たすと認められるものとして政令で定めるところにより財務大臣が指定したもの

Article 78, paragraph (2), item (ii), (a)

donations are solicited widely from the general public;

広く一般に募集されること。

Article 78, paragraph (2), item (ii), (b)

it is fully expected that the donation will be allocated to urgent expenses to help advance education or science, improve culture, contribute to social welfare, or otherwise further the public interest.

教育又は科学の振興、文化の向上、社会福祉への貢献その他公益の増進に寄与するための支出で緊急を要するものに充てられることが確実であること。

Article 78, paragraph (2), item (iii)

a donation to a corporation as set forth in Appended Table I, or to a corporation incorporated pursuant to a special Act, which Cabinet Order prescribes as one that significantly helps advance education or science, improve culture, contribute to social welfare, or otherwise further the public interest, made in connection with the business that is the principal objective of that corporation (other than a donation that is clearly to be allocated to business related to capital contributions and a donation that falls under a category of donation prescribed in one of the preceding two items);

別表第一に掲げる法人その他特別の法律により設立された法人のうち、教育又は科学の振興、文化の向上、社会福祉への貢献その他公益の増進に著しく寄与するものとして政令で定めるものに対する当該法人の主たる目的である業務に関連する寄附金(出資に関する業務に充てられることが明らかなもの及び前二号に規定する寄附金に該当するものを除く。)

Article 78, paragraph (2), item (iv)

a donation related to the trust affairs of a public interest trust that is expended to make it trust property of that public interest trust (other than a donation that is clearly to be allocated to trust affairs related to capital contributions and a donation that falls under a category of donation prescribed in one of the preceding three items).

公益信託の信託財産とするために支出した当該公益信託に係る信託事務に関連する寄附金(出資に関する信託事務に充てられることが明らかなもの及び前三号に規定する寄附金に該当するものを除く。)

Article 78, paragraph (3)

A deduction under paragraph (1) is referred to as a donation deduction.

第一項の規定による控除は、寄附金控除という。

Article 79第七十九条

Disability Deduction(障害者控除)
Article 79, paragraph (1)

If a Resident is a Person with a Disability, the Resident is allowed 270,000 yen (or 400,000 yen, if the Resident is a Person with a Particular Disability) as a deduction from gross income, retirement income, or timber income for the year.

居住者が障害者である場合には、その者のその年分の総所得金額、退職所得金額又は山林所得金額から二十七万円(その者が特別障害者である場合には、四十万円)を控除する。

Article 79, paragraph (2)

If a Resident's spouse in the same household or dependent is a Person with a Disability, the Resident is allowed 270,000 yen (or 400,000 yen, if that person is a Person with a Particular Disability) for each such Person with a Disability as a deduction from the Resident's gross income, retirement income, or timber income for the year.

居住者の同一生計配偶者又は扶養親族が障害者である場合には、その居住者のその年分の総所得金額、退職所得金額又は山林所得金額から、その障害者一人につき二十七万円(その者が特別障害者である場合には、四十万円)を控除する。

Article 79, paragraph (3)

If a Resident's spouse in the same household or dependent is a Person with a Particular Disability who ordinarily lives together with the Resident, the Resident's spouse, or any other relative whose living expenses are paid from the same resources as the Resident, the Resident is allowed 750,000 yen for each such Person with a Particular Disability as a deduction from the Resident's gross income, retirement income, or timber income for the year, notwithstanding the provisions of the preceding paragraph.

居住者の同一生計配偶者又は扶養親族が特別障害者で、かつ、その居住者又はその居住者の配偶者若しくはその居住者と生計を一にするその他の親族のいずれかとの同居を常況としている者である場合には、前項の規定にかかわらず、その居住者のその年分の総所得金額、退職所得金額又は山林所得金額から、その特別障害者一人につき七十五万円を控除する。

Article 79, paragraph (4)

A deduction under the preceding three paragraphs is referred to as a disability deduction.

前三項の規定による控除は、障害者控除という。

Article 80第八十条

Widow Deduction(寡婦控除)
Article 80, paragraph (1)

If a Resident is a widow, the Resident is allowed 270,000 yen as a deduction from gross income, retirement income, or timber income for the year.

居住者が寡婦である場合には、その者のその年分の総所得金額、退職所得金額又は山林所得金額から二十七万円を控除する。

Article 80, paragraph (2)

A deduction under the preceding paragraph is referred to as a widow deduction.

前項の規定による控除は、寡婦控除という。

Article 81第八十一条

Single Parent Deduction(ひとり親控除)
1 change in this article
Article 81, paragraph (1)(ひとり親控除)Single Parent DeductionChanged

If a Resident is a single parent, the Resident is allowed 350380,000 yen as a deduction from gross income, retirement income, or timber income for the year.

居住者がひとり親である場合には、その者のその年分の総所得金額、退職所得金額又は山林所得金額から三十五八万円を控除する。

Article 81, paragraph (2)(ひとり親控除)

A deduction under the preceding paragraph is referred to as a single parent deduction.

前項の規定による控除は、ひとり親控除という。

Article 82第八十二条

Working Student Deduction(勤労学生控除)
Article 82, paragraph (1)

If a Resident is a working student, the Resident is allowed 270,000 yen as a deduction from gross income, retirement income, or timber income for the year.

居住者が勤労学生である場合には、その者のその年分の総所得金額、退職所得金額又は山林所得金額から二十七万円を控除する。

Article 82, paragraph (2)

A deduction under the preceding paragraph is referred to as a working student deduction.

前項の規定による控除は、勤労学生控除という。

Article 83第八十三条

Spousal Deduction(配偶者控除)
Article 83, paragraph (1)

If a Resident has a Claimable Spouse, the amount specified in each of the following items for the category of case set forth in that item is allowed as a deduction from the Resident's gross income, retirement income, or timber income for the year:

居住者が控除対象配偶者を有する場合には、その居住者のその年分の総所得金額、退職所得金額又は山林所得金額から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を控除する。

Article 83, paragraph (1), item (i)

if the Resident's total income prescribed in Article 2, paragraph (1), item (xxx) (Definitions) (referred to as "total income" in this paragraph, paragraph (1) of the following Article, Article 84-2, paragraph (1) (Special Deduction for Specified Relatives), and Article 86, paragraph (1) (Basic Personal Exemption)) is 9,000,000 yen or less: 380,000 yen (or 480,000 yen, if the Claimable Spouse is a Claimable Elderly Spouse);

その居住者の第二条第一項第三十号(定義)に規定する合計所得金額(以下この項、次条第一項、第八十四条の二第一項(特定親族特別控除)及び第八十六条第一項(基礎控除)において「合計所得金額」という。)が九百万円以下である場合 三十八万円(その控除対象配偶者が老人控除対象配偶者である場合には、四十八万円)

Article 83, paragraph (1), item (ii)

if the Resident's total income exceeds 9,000,000 yen but does not exceed 9,500,000 yen: 260,000 yen (or 320,000 yen, if the Claimable Spouse is a Claimable Elderly Spouse);

その居住者の合計所得金額が九百万円を超え九百五十万円以下である場合 二十六万円(その控除対象配偶者が老人控除対象配偶者である場合には、三十二万円)

Article 83, paragraph (1), item (iii)

if the Resident's total income exceeds 9,500,000 yen but does not exceed 10,000,000 yen: 130,000 yen (or 160,000 yen, if the Claimable Spouse is a Claimable Elderly Spouse).

その居住者の合計所得金額が九百五十万円を超え千万円以下である場合 十三万円(その控除対象配偶者が老人控除対象配偶者である場合には、十六万円)

Article 83, paragraph (2)

A deduction under the preceding paragraph is referred to as a spousal deduction.

前項の規定による控除は、配偶者控除という。

Article 83-2第八十三条の二

Special Spousal Deduction(配偶者特別控除)
Article 83-2, paragraph (1)

If a Resident has a spouse whose living expenses are paid from the same resources as the Resident (excluding a relative employed only by a blue-return filer or similar person prescribed in Article 2, paragraph (1), item (xxxiii) (Definitions), and limited to a spouse whose total income is 1,330,000 yen or less) who does not fall under the category of Claimable Spouse (limited to the spouse of that Resident whose total income is 10,000,000 yen or less), the amount specified in each of the following items for the category of case set forth in that item is allowed as a deduction from the Resident's gross income, retirement income, or timber income for the year:

居住者が生計を一にする配偶者(第二条第一項第三十三号(定義)に規定する青色事業専従者等を除くものとし、合計所得金額が百三十三万円以下であるものに限る。)で控除対象配偶者に該当しないもの(合計所得金額が千万円以下である当該居住者の配偶者に限る。)を有する場合には、その居住者のその年分の総所得金額、退職所得金額又は山林所得金額から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を控除する。

Article 83-2, paragraph (1), item (i)

if the Resident's total income is 9,000,000 yen or less: the amount specified in the following for the category set forth therein to which the Resident's spouse belongs:

その居住者の合計所得金額が九百万円以下である場合 その居住者の配偶者の次に掲げる区分に応じそれぞれ次に定める金額

Article 83-2, paragraph (1), item (i), (a)

a spouse whose total income is 950,000 yen or less: 380,000 yen;

合計所得金額が九十五万円以下である配偶者 三十八万円

Article 83-2, paragraph (1), item (i), (b)

a spouse whose total income exceeds 950,000 yen but does not exceed 1,300,000 yen: the amount obtained by deducting from 380,000 yen the amount of the portion of the spouse's total income that exceeds 930,001 yen (or, if the amount of that excess portion is not an amount obtained by deducting 30,000 yen from a whole-number multiple of 50,000 yen, the largest of the amounts obtained by deducting 30,000 yen from a whole-number multiple of 50,000 yen that are less than the amount of that excess portion);

合計所得金額が九十五万円を超え百三十万円以下である配偶者 三十八万円からその配偶者の合計所得金額のうち九十三万一円を超える部分の金額(当該超える部分の金額が五万円の整数倍の金額から三万円を控除した金額でないときは、五万円の整数倍の金額から三万円を控除した金額で当該超える部分の金額に満たないもののうち最も多い金額とする。)を控除した金額

Article 83-2, paragraph (1), item (i), (c)

a spouse whose total income exceeds 1,300,000 yen: 30,000 yen.

合計所得金額が百三十万円を超える配偶者 三万円

Article 83-2, paragraph (1), item (ii)

if the Resident's total income exceeds 9,000,000 yen but does not exceed 9,500,000 yen: an amount equivalent to two-thirds of the amount specified in (a) through (c) of the preceding item for the category set forth in (a) through (c) of that item to which the Resident's spouse belongs (or, if that amount includes a fraction of less than 10,000 yen, the amount obtained by rounding that fraction up);

その居住者の合計所得金額が九百万円を超え九百五十万円以下である場合 その居住者の配偶者の前号イからハまでに掲げる区分に応じそれぞれ同号イからハまでに定める金額の三分の二に相当する金額(当該金額に一万円未満の端数がある場合には、これを切り上げた金額)

Article 83-2, paragraph (1), item (iii)

if the Resident's total income exceeds 9,500,000 yen but does not exceed 10,000,000 yen: an amount equivalent to one-third of the amount specified in item (i), (a) through (c) for the category set forth in (a) through (c) of that item to which the Resident's spouse belongs (or, if that amount includes a fraction of less than 10,000 yen, the amount obtained by rounding that fraction up).

その居住者の合計所得金額が九百五十万円を超え千万円以下である場合 その居住者の配偶者の第一号イからハまでに掲げる区分に応じそれぞれ同号イからハまでに定める金額の三分の一に相当する金額(当該金額に一万円未満の端数がある場合には、これを切り上げた金額)

Article 83-2, paragraph (2)

The provisions of the preceding paragraph do not apply if the spouse whose living expenses are paid from the same resources as the Resident prescribed in that paragraph falls under any of the following cases:

前項の規定は、同項に規定する生計を一にする配偶者が、次に掲げる場合に該当するときは、適用しない。

Article 83-2, paragraph (2), item (i)

if the spouse is subject to the application of the provisions of the preceding paragraph as a Resident prescribed in that paragraph;

当該配偶者が前項に規定する居住者として同項の規定の適用を受けている場合

Article 83-2, paragraph (2), item (ii)

if the spouse is subject to the application of the provisions of Article 185, paragraph (1), item (i) or (ii) (Amount Withheld from a Salary or Other Wage Other Than a Bonus) or Article 186, paragraph (1), item (i) or paragraph (2), item (i) (Amount Withheld from Bonuses) as a Resident who has a spouse for withholding deduction stated in a salary income earner's return for deduction for Dependents, etc. or in a return for deduction for Dependents, etc. regarding secondary salaries (excluding the case where the spouse is a person to whom the provisions of Article 190 (Year-End Adjustment) have been applied, or a person who has filed a Tax Return or has received a determination, with respect to income tax for the year);

当該配偶者が、給与所得者の扶養控除等申告書又は従たる給与についての扶養控除等申告書に記載された源泉控除対象配偶者がある居住者として第百八十五条第一項第一号若しくは第二号(賞与以外の給与等に係る徴収税額)又は第百八十六条第一項第一号若しくは第二項第一号(賞与に係る徴収税額)の規定の適用を受けている場合(当該配偶者が、その年分の所得税につき、第百九十条(年末調整)の規定の適用を受けた者である場合又は確定申告書の提出をし、若しくは決定を受けた者である場合を除く。)

Article 83-2, paragraph (2), item (iii)

if the spouse is subject to the application of the provisions of Article 203-3, items (i) through (iii) (Amount of Tax to Be Collected) as a Resident who has a spouse for withholding deduction stated in a return for Dependents, etc. of a recipient of a public pension or retirement package (excluding the case where the spouse is a person who has filed a Tax Return or has received a determination with respect to income tax for the year).

当該配偶者が、公的年金等の受給者の扶養親族等申告書に記載された源泉控除対象配偶者がある居住者として第二百三条の三第一号から第三号まで(徴収税額)の規定の適用を受けている場合(当該配偶者がその年分の所得税につき確定申告書の提出をし、又は決定を受けた者である場合を除く。)

Article 83-2, paragraph (3)

A deduction under paragraph (1) is referred to as a special spousal deduction.

第一項の規定による控除は、配偶者特別控除という。

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