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Order for Enforcement of the Income Tax Act

所得税法施行令(しょとくぜいほうしこうれい)

Section 4 Calculation of Necessary Expenses, etc. (Articles 138 to 144)

The law as Cabinet Order Partially Amending the Order for Enforcement of the Income Tax Act (Cabinet Order No. 93 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.

How the changes are shown

Underlined: words the amendment adds. A bar: where it removes words.Underlined: words the amendment adds. Struck through: the words it removes.Underlined: words the amendment adds. Struck through: the words it removes.

Subsection 6 Inclusion in Necessary Expenses of Acquisition Price of Small-Amount Depreciable Assets, etc.第六款 少額の減価償却資産等の取得価額の必要経費算入

Article 138第百三十八条

Inclusion in Necessary Expenses of Acquisition Price of Small-Amount Depreciable Assets(少額の減価償却資産の取得価額の必要経費算入)
Article 138, paragraph (1)

With respect to a Depreciable Asset that a Resident has put to use for business that is to generate real property income, business income, timber income or miscellaneous income (excluding those set forth in Article 120, paragraph (1), item (vi) and Article 120-2, paragraph (1), item (vi) (Methods of Depreciation of Depreciable Assets)) whose acquisition price (meaning the price calculated in accordance with the provisions of the items of Article 126, paragraph (1) or paragraph (2) (Acquisition Price of Depreciable Assets); the same applies in paragraph (1) of the following Article) is less than 100,000 yen (excluding one put to use for leasing (excluding leasing conducted as a principal business)), or whose usable period prescribed in Article 181, item (i) (Capital Expenditure) is less than one year, notwithstanding the provisions of Subsection 4 (Depreciation of Depreciable Assets), the amount equivalent to its acquisition price is included in necessary expenses in calculating the Resident's amount of real property income, amount of business income, amount of timber income or amount of miscellaneous income for the year in which the Resident put it to use for that business.

居住者が不動産所得、事業所得、山林所得又は雑所得を生ずべき業務の用に供した減価償却資産(第百二十条第一項第六号及び第百二十条の二第一項第六号(減価償却資産の償却の方法)に掲げるものを除く。)で、取得価額(第百二十六条第一項各号又は第二項(減価償却資産の取得価額)の規定により計算した価額をいう。次条第一項において同じ。)が十万円未満であるもの(貸付け(主要な業務として行われるものを除く。)の用に供したものを除く。)又は第百八十一条第一号(資本的支出)に規定する使用可能期間が一年未満であるものについては、第四款(減価償却資産の償却)の規定にかかわらず、その取得価額に相当する金額を、その者のその業務の用に供した年分の不動産所得の金額、事業所得の金額、山林所得の金額又は雑所得の金額の計算上、必要経費に算入する。

Article 138, paragraph (2)

The determination of whether leasing falls under leasing conducted as a principal business prescribed in the preceding paragraph and other matters necessary for the application of the provisions of that paragraph are specified by Ministry of Finance Order.

前項に規定する主要な業務として行われる貸付けに該当するかどうかの判定その他同項の規定の適用に関し必要な事項は、財務省令で定める。

Article 139第百三十九条

Inclusion of Lump-Sum Depreciable Assets in Necessary Expenses(一括償却資産の必要経費算入)
Article 139, paragraph (1)

With respect to a Depreciable Asset that a Resident has put to use for business that is to generate real property income, business income, timber income or miscellaneous income and whose acquisition price is less than 200,000 yen (excluding those set forth in Article 120, paragraph (1), item (vi) and Article 120-2, paragraph (1), item (vi) (Methods of Depreciation of Depreciable Assets) and those to which the provisions of paragraph (1) of the preceding Article apply; hereinafter in this paragraph referred to as "covered assets"), where the Resident has chosen the method of treating the sum of the acquisition prices of the whole, or of a specified part, of those covered assets (excluding those put to use for leasing (excluding leasing conducted as a principal business)) bundled together (hereinafter in this paragraph and the following paragraph referred to as "lump-sum Depreciable Assets") as the amount of expenses for each year of the three years beginning with the year in which they were put to use for that business, the amount to be included in necessary expenses for those lump-sum Depreciable Assets in calculating the amount of real property income, amount of business income, amount of timber income or amount of miscellaneous income for each of those years is, notwithstanding the provisions of Subsection 4 (Depreciation of Depreciable Assets), the amount calculated by dividing the sum of the acquisition prices of those lump-sum Depreciable Assets (referred to in the following two paragraphs as the "amount subject to lump-sum depreciation") by three.

居住者が不動産所得、事業所得、山林所得又は雑所得を生ずべき業務の用に供した減価償却資産で取得価額が二十万円未満であるもの(第百二十条第一項第六号及び第百二十条の二第一項第六号(減価償却資産の償却の方法)に掲げるもの並びに前条第一項の規定の適用があるものを除く。以下この項において「対象資産」という。)については、その居住者が当該対象資産(貸付け(主要な業務として行われるものを除く。)の用に供したものを除く。)の全部又は特定の一部を一括したもの(以下この項及び次項において「一括償却資産」という。)の取得価額の合計額をその業務の用に供した年以後三年間の各年の費用の額とする方法を選択したときは、第四款(減価償却資産の償却)の規定にかかわらず、当該一括償却資産につき当該各年分の不動産所得の金額、事業所得の金額、山林所得の金額又は雑所得の金額の計算上必要経費に算入する金額は、当該一括償却資産の取得価額の合計額(次項及び第三項において「一括償却対象額」という。)を三で除して計算した金額とする。

Article 139, paragraph (2)

The provisions of the preceding paragraph apply only where a document stating the amount subject to lump-sum depreciation is attached to the Tax Return for the year that includes the day on which the lump-sum depreciable assets were put to use for business, and the documents pertaining to its calculation are retained.

前項の規定は、一括償却資産を業務の用に供した日の属する年分の確定申告書に一括償却対象額を記載した書類を添付し、かつ、その計算に関する書類を保存している場合に限り、適用する。

Article 139, paragraph (3)

A Resident who has, in that year, an amount included in necessary expenses with respect to the amount subject to lump-sum depreciation must attach to the Tax Return for that year a detailed statement concerning the calculation of the amount to be included in necessary expenses under the provisions of paragraph (1).

居住者は、その年において一括償却対象額につき必要経費に算入した金額がある場合には、その年分の確定申告書に、第一項の規定により必要経費に算入される金額の計算に関する明細書を添付しなければならない。

Article 139, paragraph (4)

In addition to what is provided for in the preceding two paragraphs, the determination of whether leasing falls under leasing conducted as a principal business prescribed in paragraph (1) and other matters necessary for the application of the provisions of that paragraph are specified by Ministry of Finance Order.

前二項に定めるもののほか、第一項に規定する主要な業務として行われる貸付けに該当するかどうかの判定その他同項の規定の適用に関し必要な事項は、財務省令で定める。

Article 139-2第百三十九条の二

Inclusion in Necessary Expenses of Small-Amount Expenses That Become Deferred Assets(繰延資産となる費用のうち少額のものの必要経費算入)
Article 139-2, paragraph (1)

With respect to the expenses set forth in Article 7, paragraph (1), item (iii) (Scope of Deferred Assets) that a Resident pays, where the amount paid is less than 200,000 yen, notwithstanding the provisions of the preceding Subsection (Depreciation of Deferred Assets), the amount equivalent to the amount paid is included in necessary expenses in calculating the Resident's amount of real property income, amount of business income, amount of timber income or amount of miscellaneous income for the year that includes the day of payment.

居住者が支出する第七条第一項第三号(繰延資産の範囲)に掲げる費用のうちその支出する金額が二十万円未満であるものについては、前款(繰延資産の償却)の規定にかかわらず、その支出する金額に相当する金額を、その者のその支出する日の属する年分の不動産所得の金額、事業所得の金額、山林所得の金額又は雑所得の金額の計算上、必要経費に算入する。

Subsection 7 Losses on Assets第七款 資産損失

Article 140第百四十条

Scope of Assets Equivalent to Fixed Assets(固定資産に準ずる資産の範囲)
Article 140, paragraph (1)

The assets specified by Cabinet Order prescribed in Article 51, paragraph (1) (Inclusion of Losses on Assets in Necessary Expenses) of the Act are the portion not yet included in necessary expenses of Deferred Assets pertaining to business that is to generate real property income, business income or timber income.

法第五十一条第一項(資産損失の必要経費算入)に規定する政令で定める資産は、不動産所得、事業所得又は山林所得を生ずべき事業に係る繰延資産のうちまだ必要経費に算入されていない部分とする。

Article 141第百四十一条

Grounds for Losses to Be Included in Necessary Expenses(必要経費に算入される損失の生ずる事由)
Article 141, paragraph (1)

The grounds specified by Cabinet Order prescribed in Article 51, paragraph (2) (Inclusion of Losses on Assets in Necessary Expenses) of the Act are the following grounds that have arisen in the course of conducting a business that gives rise to real property income, business income, or timber income.

法第五十一条第二項(資産損失の必要経費算入)に規定する政令で定める事由は、次に掲げる事由で不動産所得、事業所得又は山林所得を生ずべき事業の遂行上生じたものとする。

Article 141, paragraph (1), item (i)

Revenue has been reduced due to the return of, or a discount on, products sold (including acts similar to these);

販売した商品の返戻又は値引き(これらに類する行為を含む。)により収入金額が減少することとなつたこと。

Article 141, paragraph (1), item (ii)

It has become impossible to exercise all or part of a right of reimbursement accompanying the performance of a guarantee obligation;

保証債務の履行に伴う求償権の全部又は一部を行使することができないこととなつたこと。

Article 141, paragraph (1), item (iii)

An economic result arising from a void act included among the events that formed the basis for calculating the amount of real property income, amount of business income, or amount of timber income has been lost on the basis of the voidness of that act, or an act that may be rescinded and that was included among those events has been rescinded.

不動産所得の金額、事業所得の金額若しくは山林所得の金額の計算の基礎となつた事実のうちに含まれていた無効な行為により生じた経済的成果がその行為の無効であることに基因して失われ、又はその事実のうちに含まれていた取り消すことのできる行為が取り消されたこと。

Article 142第百四十二条

Amount of Losses on Assets Included in Necessary Expenses(必要経費に算入される資産損失の金額)
Article 142, paragraph (1)

The value of an asset set out in each of the following items, which serves as the basis for calculating the amount of losses prescribed in Article 51, paragraph (1), (3), or (4) (Inclusion of Losses on Assets in Necessary Expenses) of the Act that have arisen with respect to that asset, is the amount set out in that item.

次の各号に掲げる資産について生じた法第五十一条第一項、第三項又は第四項(資産損失の必要経費算入)に規定する損失の金額の計算の基礎となるその資産の価額は、当該各号に掲げる金額とする。

Article 142, paragraph (1), item (i)

Fixed Assets: the amount equivalent to the amount that would be treated as the acquisition cost of the asset if the asset were deemed to have been the subject of a transfer of assets on the date on which the loss arose and the provisions of Article 38, paragraph (1) or (2) (Acquisition Costs Deducted to Calculate Capital Gains) of the Act were applied;

固定資産 当該損失の生じた日にその資産の譲渡があつたものとみなして法第三十八条第一項又は第二項(譲渡所得の金額の計算上控除する取得費)の規定を適用した場合にその資産の取得費とされる金額に相当する金額

Article 142, paragraph (1), item (ii)

Timberland: the amount of planting costs, expenses required for acquisition, management costs, and other expenses required for the cultivation of that timberland that were paid by the date on which the loss arose;

山林 当該損失の生じた日までに支出したその山林の植林費、取得に要した費用、管理費その他その山林の育成に要した費用の額

Article 142, paragraph (1), item (iii)

Deferred Assets: the amount obtained by deducting, from the amount of the Deferred Asset, the cumulative amount of the amounts that are included in necessary expenses, as the depreciation allowance for it pursuant to Article 50 (Calculating Depreciation Allowances for Deferred Assets; Depreciation Methods) of the Act, in calculating the amount of real property income, amount of business income, amount of timber income, or amount of miscellaneous income for each year on or before the year that includes the date on which the loss arose.

繰延資産 その繰延資産の額からその償却費として法第五十条(繰延資産の償却費の計算及びその償却の方法)の規定により当該損失の生じた日の属する年分以前の各年分の不動産所得の金額、事業所得の金額、山林所得の金額又は雑所得の金額の計算上必要経費に算入される金額の累積額を控除した金額

Article 143第百四十三条

Special Provisions on the Amount of Losses on Assets Acquired on or Before December 31, 1952(昭和二十七年十二月三十一日以前に取得した資産の損失の金額の特例)
Article 143, paragraph (1)

The value of an asset set out in each of the following items, which serves as the basis for calculating the amount of losses prescribed in Article 51, paragraph (1), (3), or (4) (Inclusion of Losses on Assets in Necessary Expenses) of the Act that have arisen with respect to that asset, is, notwithstanding the provisions of items (i) and (ii) of the preceding Article, the amount set out in that item.

次の各号に掲げる資産について生じた法第五十一条第一項、第三項又は第四項(資産損失の必要経費算入)に規定する損失の金額の計算の基礎となるその資産の価額は、前条第一号及び第二号の規定にかかわらず、当該各号に掲げる金額とする。

Article 143, paragraph (1), item (i)

Fixed Assets that have been owned continuously since on or before December 31, 1952: the amount equivalent to the amount that would be treated as the acquisition cost of the asset if the asset were deemed to have been the subject of a transfer of assets on the date on which the loss arose and the provisions of Article 61, paragraph (2) or (3) (Acquisition Cost of Assets Acquired on or Before December 31, 1952) of the Act were applied;

昭和二十七年十二月三十一日以前から引き続き所有していた固定資産 当該損失の生じた日にその資産の譲渡があつたものとみなして法第六十一条第二項又は第三項(昭和二十七年十二月三十一日以前に取得した資産の取得費)の規定を適用した場合にその資産の取得費とされる金額に相当する金額

Article 143, paragraph (1), item (ii)

Timberland that has been owned continuously since on or before December 31, 1952: the sum of the amount equivalent to the value of that timberland on January 1, 1953, calculated pursuant to Article 171 (Acquisition Cost of Timberland Acquired on or Before December 31, 1952), and the amount of management costs and other expenses required for the cultivation of that timberland that were paid between that date and the date on which the loss arose.

昭和二十七年十二月三十一日以前から引き続き所有していた山林 第百七十一条(昭和二十七年十二月三十一日以前に取得した山林の取得費)の規定により計算したその山林の昭和二十八年一月一日における価額に相当する金額と同日から当該損失の生じた日までの間に支出した管理費その他その山林の育成に要した費用の額との合計額

Subsection 8 Reserves第八款 引当金

Division 1 Bad Debt Reserves第一目 貸倒引当金

Article 144第百四十四条

Transfer Limits to Reserve Accounts for Bad Debts for Individually Assessed Loans or Other Claims(個別評価貸金等に係る貸倒引当金勘定への繰入限度額)
Article 144, paragraph (1)

The events specified by Cabinet Order prescribed in Article 52, paragraph (1) (Bad Debt Reserves) of the Act are the events set out in the following items, and the amount calculated as provided by Cabinet Order prescribed in that paragraph is the amount specified in each of the following items for the category of events set out in that item.

法第五十二条第一項(貸倒引当金)に規定する政令で定める事実は、次の各号に掲げる事実とし、同項に規定する政令で定めるところにより計算した金額は、当該各号に掲げる事実の区分に応じ当該各号に定める金額とする。

Article 144, paragraph (1), item (i)

The event that, for lendings and other claims (meaning lendings and other claims prescribed in Article 52, paragraph (1) of the Act; the same applies hereinafter in this Article) that a Resident prescribed in that paragraph holds on December 31 of that year (where the Resident dies in the course of the year, at the time of death; the same applies hereinafter in this paragraph), repayment has been deferred, or is to be made in installments, on the basis of any of the following grounds that have arisen with respect to the debtor pertaining to those lendings and other claims: the amount of those lendings and other claims other than the amount that is to be repaid by the day on which five years elapse from January 1 of the year following the year that includes the date on which those grounds arose (excluding the amount of a portion for which collection or repayment (hereinafter in this paragraph referred to as "collection, etc.") is found to be expected through the exercise of a security interest or otherwise):

法第五十二条第一項の居住者がその年十二月三十一日(その者が年の中途において死亡した場合には、その死亡の時。以下この項において同じ。)において有する貸金等(同条第一項に規定する貸金等をいう。以下この条において同じ。)につき、当該貸金等に係る債務者について生じた次に掲げる事由に基づいてその弁済を猶予され、又は賦払により弁済されること 当該貸金等の額のうち当該事由が生じた日の属する年の翌年一月一日から五年を経過する日までに弁済されることとなつている金額以外の金額(担保権の実行その他によりその取立て又は弁済(以下この項において「取立て等」という。)の見込みがあると認められる部分の金額を除く。)

Article 144, paragraph (1), item (i), (a)

a decision to authorize a reorganization plan;

更生計画認可の決定

Article 144, paragraph (1), item (i), (b)

a decision to authorize a rehabilitation plan;

再生計画認可の決定

Article 144, paragraph (1), item (i), (c)

a decision to authorize an arrangement in special liquidation;

特別清算に係る協定の認可の決定

Article 144, paragraph (1), item (i), (d)

the occurrence of an event prescribed in Article 24-2, paragraph (1) (Events Equivalent to a Decision to Authorize a Rehabilitation Plan, etc.) of the Order for the Enforcement of the Corporation Tax Act;

法人税法施行令第二十四条の二第一項(再生計画認可の決定に準ずる事実等)に規定する事実が生じたこと。

Article 144, paragraph (1), item (i), (e)

grounds specified by Ministry of Finance Order as equivalent to the grounds set out in (a) through (c);

イからハまでに掲げる事由に準ずるものとして財務省令で定める事由

Article 144, paragraph (1), item (ii)

The event that, with regard to the debtor pertaining to lendings and other claims that a Resident prescribed in Article 52, paragraph (1) of the Act holds on December 31 of that year, collection, etc. of part of the amount of those lendings and other claims is found not to be expected due to a state of insolvency having continued for a considerable period and there being no prospect of improvement in the business the debtor conducts, great damage having arisen from a Disaster, a sudden change in economic conditions, or the like, or other grounds (excluding the case where the event set out in the preceding item has arisen with respect to those lendings and other claims): the amount equivalent to that part of the amount;

法第五十二条第一項の居住者がその年十二月三十一日において有する貸金等に係る債務者につき、債務超過の状態が相当期間継続し、かつ、その営む事業に好転の見通しがないこと、災害、経済事情の急変等により多大な損害が生じたことその他の事由により、当該貸金等の一部の金額につきその取立て等の見込みがないと認められること(当該貸金等につき前号に掲げる事実が生じている場合を除く。) 当該一部の金額に相当する金額

Article 144, paragraph (1), item (iii)

The event that the following grounds have arisen with respect to the debtor pertaining to lendings and other claims that a Resident prescribed in Article 52, paragraph (1) of the Act holds on December 31 of that year (excluding the case where the event set out in item (i) has arisen with respect to those lendings and other claims, and the case where the provisions of that paragraph have been applied because the event set out in the preceding item has arisen): the amount equivalent to 50 percent of the amount of those lendings and other claims (excluding, from that amount, the amount of the portion that is not substantially regarded as a claim because there is an amount received from that debtor, and the amount of the portion for which collection, etc. is found to be expected through the exercise of a security interest, the performance of a guarantee obligation by a financial institution or guarantee agency, or otherwise):

法第五十二条第一項の居住者がその年十二月三十一日において有する貸金等に係る債務者につき次に掲げる事由が生じていること(当該貸金等につき、第一号に掲げる事実が生じている場合及び前号に掲げる事実が生じていることにより同項の規定の適用を受けた場合を除く。) 当該貸金等の額(当該貸金等の額のうち、当該債務者から受け入れた金額があるため実質的に債権とみられない部分の金額及び担保権の実行、金融機関又は保証機関による保証債務の履行その他により取立て等の見込みがあると認められる部分の金額を除く。)の百分の五十に相当する金額

Article 144, paragraph (1), item (iii), (a)

a petition for commencement of reorganization proceedings;

更生手続開始の申立て

Article 144, paragraph (1), item (iii), (b)

a petition for commencement of rehabilitation proceedings;

再生手続開始の申立て

Article 144, paragraph (1), item (iii), (c)

a petition to commence bankruptcy proceedings;

破産手続開始の申立て

Article 144, paragraph (1), item (iii), (d)

a petition for commencement of special liquidation;

特別清算開始の申立て

Article 144, paragraph (1), item (iii), (e)

grounds specified by Ministry of Finance Order as equivalent to the grounds set out in (a) through (d);

イからニまでに掲げる事由に準ずるものとして財務省令で定める事由

Article 144, paragraph (1), item (iv)

the event that, owing to long-term default in the performance of obligations by a foreign government, central bank or local government that is the debtor with respect to the lendings and other claims held, as of December 31 of that year, by a Resident referred to in Article 52, paragraph (1) of the Act, the economic value of those lendings and other claims has significantly decreased and it is found to be extremely difficult to receive repayment: the amount equivalent to 50 percent of the amount of those lendings and other claims (excluding, out of the amount of those lendings and other claims, the amount of the portion that is not substantially regarded as a claim because of amounts received from those persons and the amount of the portion for which collection, etc. is found to be expected through performance of a guarantee obligation or otherwise).

法第五十二条第一項の居住者がその年十二月三十一日において有する貸金等に係る債務者である外国の政府、中央銀行又は地方公共団体の長期にわたる債務の履行遅滞によりその貸金等の経済的な価値が著しく減少し、かつ、その弁済を受けることが著しく困難であると認められること 当該貸金等の額(当該貸金等の額のうち、これらの者から受け入れた金額があるため実質的に債権とみられない部分の金額及び保証債務の履行その他により取立て等の見込みがあると認められる部分の金額を除く。)の百分の五十に相当する金額

Article 144, paragraph (2)

Even where the events set forth in the items of the preceding paragraph have occurred with respect to lendings and other claims held by a Resident, if documents certifying that those events have occurred and other documents specified by Ministry of Finance Order have not been retained, those events are deemed not to have occurred for the purpose of the application of the provisions of that paragraph to those lendings and other claims.

居住者の有する貸金等について前項各号に掲げる事実が生じている場合においても、当該事実が生じていることを証する書類その他の財務省令で定める書類の保存がされていないときは、当該貸金等に係る同項の規定の適用については、当該事実は、生じていないものとみなす。

Article 144, paragraph (3)

Even where the documents prescribed in the preceding paragraph have not been retained, if the district director finds that there were unavoidable circumstances for the failure to retain those documents, the district director may refrain from applying the provisions of that paragraph to the amount pertaining to the lendings and other claims for which the documents were not retained.

税務署長は、前項の書類の保存がない場合においても、その書類の保存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、その書類の保存のなかつた貸金等に係る金額につき同項の規定を適用しないことができる。

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