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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 119-2 to 120)

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 3-2 Valuation of Cryptoassets第三款の二 暗号資産の評価

Division 1 Valuation Methods for Cryptoassets第一目 暗号資産の評価の方法

Article 119-2第百十九条の二

Valuation Methods for Cryptoassets(暗号資産の評価の方法)
Article 119-2, paragraph (1)

The valuation method that may be selected for calculating, under Article 48-2, paragraph (1) (Calculation of Costs of Cryptoassets Transferred and Valuation Methods) of the Act, the assessed value of the cryptoassets prescribed in that paragraph that are held on December 31 of that year (if the Resident referred to in that paragraph dies or becomes Absent From Japan in the middle of a year, at the time of that death or the start of that Absence From Japan; the same applies in item (ii)) (hereinafter in this paragraph referred to as "year-end cryptoassets") is a method of calculating the acquisition price of the year-end cryptoassets by any of the following methods and taking the acquisition price so calculated as the assessed value of those year-end cryptoassets.

法第四十八条の二第一項(暗号資産の譲渡原価等の計算及びその評価の方法)の規定によるその年十二月三十一日(同項の居住者が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。第二号において同じ。)において有する同項に規定する暗号資産(以下この項において「期末暗号資産」という。)の評価額の計算上選定をすることができる評価の方法は、期末暗号資産につき次に掲げる方法のうちいずれかの方法によつてその取得価額を算出し、その算出した取得価額をもつて当該期末暗号資産の評価額とする方法とする。

Article 119-2, paragraph (1), item (i)

The total average method (meaning a method that distinguishes cryptoassets (meaning cryptoassets prescribed in Article 48-2, paragraph (1) of the Act; the same applies hereinafter in this Subsection) by each different type and, for those of the same type, takes as the acquisition price per unit the price calculated by dividing the sum of the total acquisition price of the cryptoassets of the same type held on January 1 of that year and the total acquisition price of the cryptoassets of the same type acquired during that year by the total quantity of those cryptoassets);

総平均法(暗号資産(法第四十八条の二第一項に規定する暗号資産をいう。以下この款において同じ。)をその種類の異なるごとに区別し、その種類の同じものについて、その年一月一日において有していた種類を同じくする暗号資産の取得価額の総額とその年中に取得をした種類を同じくする暗号資産の取得価額の総額との合計額をこれらの暗号資産の総数量で除して計算した価額をその一単位当たりの取得価額とする方法をいう。)

Article 119-2, paragraph (1), item (ii)

The moving average method (meaning a method that distinguishes cryptoassets by each different type and, for those of the same type, deems the initial acquisition price per unit to be revised, where cryptoassets of the same type are acquired again, to the average unit price calculated on the basis of the quantity and acquisition price of the cryptoassets held at the time of that acquisition and the cryptoassets so acquired, deems the acquisition price per unit to be revised by the same method each time cryptoassets of the same type are acquired thereafter, and takes as the acquisition price per unit the acquisition price per unit deemed to have been revised on the day nearest to December 31 of that year).

移動平均法(暗号資産をその種類の異なるごとに区別し、その種類の同じものについて、当初の一単位当たりの取得価額が、再び種類を同じくする暗号資産の取得をした場合にはその取得の時において有する当該暗号資産とその取得をした暗号資産との数量及び取得価額を基礎として算出した平均単価によつて改定されたものとみなし、以後種類を同じくする暗号資産の取得をする都度同様の方法により一単位当たりの取得価額が改定されたものとみなし、その年十二月三十一日から最も近い日において改定されたものとみなされた一単位当たりの取得価額をその一単位当たりの取得価額とする方法をいう。)

Article 119-2, paragraph (2)

The acquisition referred to in each item of the preceding paragraph does not include the acquisition in the case of acquiring cryptoassets, other than those cryptoassets, that are temporarily necessary when intending to purchase or sell cryptoassets or to exchange them for cryptoassets of a different type.

前項各号に規定する取得には、暗号資産を購入し、若しくは売却し、又は種類の異なる暗号資産に交換しようとする際に一時的に必要なこれらの暗号資産以外の暗号資産を取得する場合におけるその取得を含まないものとする。

Article 119-3第百十九条の三

Selection of Valuation Methods for Cryptoassets(暗号資産の評価の方法の選定)
Article 119-3, paragraph (1)

The valuation method for cryptoassets must be selected for each type of cryptoassets.

暗号資産の評価の方法は、その種類ごとに選定しなければならない。

Article 119-3, paragraph (2)

In the case where a Resident has acquired cryptoassets (excluding the case where a notification under this paragraph is to be made, in a year preceding the year in which the date of acquisition falls or in an earlier year, regarding cryptoassets of the same type as those cryptoassets), the Resident must notify the competent district director with jurisdiction over the place for tax payment in writing, by the Filing Deadline for the income tax for the year in which that date falls, of the valuation method to be used, from among the valuation methods prescribed in paragraph (1) of the preceding Article, regarding cryptoassets of the same type as those cryptoassets.

居住者は、暗号資産の取得をした場合(その取得をした日の属する年の前年以前においてその暗号資産と種類を同じくする暗号資産につきこの項の規定による届出をすべき場合を除く。)には、同日の属する年分の所得税に係る確定申告期限までに、その暗号資産と種類を同じくする暗号資産につき、前条第一項に規定する評価の方法のうちそのよるべき方法を書面により納税地の所轄税務署長に届け出なければならない。

Article 119-3, paragraph (3)

The provisions of paragraph (2) of the preceding Article apply mutatis mutandis to the acquisition prescribed in the preceding paragraph.

前条第二項の規定は、前項に規定する取得について準用する。

Article 119-4第百十九条の四

Procedures for Changing Valuation Methods for Cryptoassets(暗号資産の評価の方法の変更手続)
Article 119-4, paragraph (1)

A Resident who intends to change the valuation method selected for cryptoassets (including the valuation method prescribed in paragraph (1) of the following Article that a person who has not notified a valuation method is to use) must obtain the approval of the competent district director with jurisdiction over the place for tax payment.

居住者は、暗号資産につき選定した評価の方法(その評価の方法を届け出なかつた者がよるべきこととされている次条第一項に規定する評価の方法を含む。)を変更しようとする場合には、納税地の所轄税務署長の承認を受けなければならない。

Article 119-4, paragraph (2)

The provisions of Article 101, paragraphs (2) through (5) (Procedures for Changing Inventory Valuation Methods) apply mutatis mutandis to the case referred to in the preceding paragraph. In this case, the phrase "amount of business income" in paragraph (3) of that Article is deemed to be replaced with "amount of business income or amount of miscellaneous income".

第百一条第二項から第五項まで(棚卸資産の評価の方法の変更手続)の規定は、前項の場合について準用する。この場合において、同条第三項中「事業所得の金額」とあるのは、「事業所得の金額又は雑所得の金額」と読み替えるものとする。

Article 119-5第百十九条の五

Statutory Valuation Method for Cryptoassets(暗号資産の法定評価方法)
Article 119-5, paragraph (1)

The method specified by Cabinet Order prescribed in Article 48-2, paragraph (1) (Calculation of Costs of Cryptoassets Transferred and Valuation Methods) of the Act is the valuation method using the acquisition price calculated by the total average method set forth in Article 119-2, paragraph (1), item (i) (Valuation Methods for Cryptoassets).

法第四十八条の二第一項(暗号資産の譲渡原価等の計算及びその評価の方法)に規定する政令で定める方法は、第百十九条の二第一項第一号(暗号資産の評価の方法)に掲げる総平均法により算出した取得価額による評価の方法とする。

Article 119-5, paragraph (2)

In the case where a Resident did not make a valuation by the valuation method the Resident selected for cryptoassets (including the valuation method prescribed in the preceding paragraph that a Resident who has not notified a valuation method is to use; the same applies hereinafter in this paragraph), if a district director finds that the valuation method the Resident used falls under a valuation method prescribed in Article 119-2, paragraph (1) other than the valuation method the Resident selected, and that the Resident's amount of business income or amount of miscellaneous income for each year can be properly calculated even by the valuation method the Resident used, the district director may make a Reassessment or determination on the basis of the amount of business income or amount of miscellaneous income for each year calculated by the valuation method the Resident used.

税務署長は、居住者が暗号資産につき選定した評価の方法(その評価の方法を届け出なかつた居住者がよるべきこととされている前項に規定する評価の方法を含む。以下この項において同じ。)により評価しなかつた場合において、その居住者が行つた評価の方法がその居住者の選定した評価の方法以外の第百十九条の二第一項に規定する評価の方法に該当し、かつ、その行つた評価の方法によつてもその居住者の各年分の事業所得の金額又は雑所得の金額の計算を適正に行うことができると認めるときは、その行つた評価の方法により計算した各年分の事業所得の金額又は雑所得の金額を基礎として更正又は決定をすることができる。

Division 2 Acquisition Price of Cryptoassets第二目 暗号資産の取得価額

Article 119-6第百十九条の六

Acquisition Price of Cryptoassets(暗号資産の取得価額)
Article 119-6, paragraph (1)

Except as otherwise provided, the acquisition price of cryptoassets that forms the basis for calculating the assessed value of cryptoassets under Article 119-2, paragraph (1) (Valuation Methods for Cryptoassets) is, according to the category of cryptoassets set forth in each of the following items, the amount specified in that item.

第百十九条の二第一項(暗号資産の評価の方法)の規定による暗号資産の評価額の計算の基礎となる暗号資産の取得価額は、別段の定めがあるものを除き、次の各号に掲げる暗号資産の区分に応じ当該各号に定める金額とする。

Article 119-6, paragraph (1), item (i)

Cryptoassets that have been purchased: the purchase price (if there are purchase commissions or other expenses required for the purchase of those cryptoassets, the amount obtained by adding the amount of those expenses);

購入した暗号資産 その購入の代価(購入手数料その他その暗号資産の購入のために要した費用がある場合には、その費用の額を加算した金額)

Article 119-6, paragraph (1), item (ii)

Cryptoassets acquired by issuing them oneself: the amount of expenses required for that issuance;

自己が発行することにより取得した暗号資産 その発行のために要した費用の額

Article 119-6, paragraph (1), item (iii)

Cryptoassets other than the cryptoassets set forth in the preceding two items: the amount normally required for acquiring those cryptoassets at the time of their acquisition.

前二号に掲げる暗号資産以外の暗号資産 その取得の時におけるその暗号資産の取得のために通常要する価額

Article 119-6, paragraph (2)

The acquisition price prescribed in the preceding paragraph of the cryptoassets set forth in each of the following items is the amount specified in that item.

次の各号に掲げる暗号資産の前項に規定する取得価額は、当該各号に定める金額とする。

Article 119-6, paragraph (2), item (i)

Cryptoassets acquired by gift, inheritance, or bequest (excluding those acquired through a gift or bequest set forth in Article 40, paragraph (1), item (i) (Inclusion of Gifts of Inventory in Gross Revenue) of the Act): the amount valued, at the time of the death of the decedent, by the valuation method that the decedent was to use for those cryptoassets;

贈与、相続又は遺贈により取得した暗号資産(法第四十条第一項第一号(棚卸資産の贈与等の場合の総収入金額算入)に掲げる贈与又は遺贈により取得したものを除く。) 被相続人の死亡の時において、当該被相続人がその暗号資産につきよるべきものとされていた評価の方法により評価した金額

Article 119-6, paragraph (2), item (ii)

Cryptoassets acquired through a transfer set forth in Article 40, paragraph (1), item (ii) of the Act: the sum of the amount of the consideration for that transfer and the amount specified in that item.

法第四十条第一項第二号に掲げる譲渡により取得した暗号資産 当該譲渡の対価の額と同号に定める金額との合計額

Article 119-7第百十九条の七

Acquisition Price of Cryptoassets Through Margin Transactions(信用取引による暗号資産の取得価額)
Article 119-7, paragraph (1)

In the case where a Resident has traded cryptoassets by a cryptoasset margin transaction (meaning the purchase and sale of cryptoassets conducted with credit extended by another person; the same applies hereinafter in this Article) and has settled that cryptoasset margin transaction by selling and buying cryptoassets in that cryptoasset margin transaction, the amount to be included in necessary expenses in calculating the amount of business income or the amount of miscellaneous income of that person for that year, as expenses required for acquiring the cryptoassets pertaining to that sale, is to be, notwithstanding Articles 119-2 through the preceding Article, the amount required for acquiring the cryptoassets pertaining to that purchase in that cryptoasset margin transaction.

居住者が暗号資産信用取引(他の者から信用の供与を受けて行う暗号資産の売買をいう。以下この条において同じ。)の方法による暗号資産の売買を行い、かつ、当該暗号資産信用取引による暗号資産の売付けと買付けとにより当該暗号資産信用取引の決済を行つた場合には、当該売付けに係る暗号資産の取得に要した経費としてその者のその年分の事業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、第百十九条の二から前条までの規定にかかわらず、当該暗号資産信用取引において当該買付けに係る暗号資産を取得するために要した金額とする。

Subsection 4 Depreciation of Depreciable Assets第四款 減価償却資産の償却

Division 1 Depreciation Methods for Depreciable Assets第一目 減価償却資産の償却の方法

Article 120第百二十条

Depreciation Methods for Depreciable Assets(減価償却資産の償却の方法)
Article 120, paragraph (1)

The depreciation methods specified by Cabinet Order prescribed in Article 49, paragraph (1) (Calculating Depreciation Allowances for Depreciable Assets; Depreciation Methods) of the Act that may be selected in calculating the amount of the depreciation allowance (meaning the depreciation allowance for Depreciable Assets under that paragraph; the same applies hereinafter in this Subsection) for Depreciable Assets acquired on or before March 31, 2007 (for Depreciable Assets set forth in item (vi), those for which the contract pertaining to the pre-amendment lease transaction prescribed in item (vi) has been concluded by March 31, 2008) are the methods specified in the following items for the categories of assets set forth in the respective items.

平成十九年三月三十一日以前に取得された減価償却資産(第六号に掲げる減価償却資産にあつては、当該減価償却資産についての同号に規定する改正前リース取引に係る契約が平成二十年三月三十一日までに締結されたもの)の償却費(法第四十九条第一項(減価償却資産の償却費の計算及びその償却の方法)の規定による減価償却資産の償却費をいう。以下この款において同じ。)の額の計算上選定をすることができる同項に規定する政令で定める償却の方法は、次の各号に掲げる資産の区分に応じ当該各号に定める方法とする。

Article 120, paragraph (1), item (i)

Buildings (excluding those set forth in item (iii)): the methods specified in the following for the respective categories set forth below;

建物(第三号に掲げるものを除く。) 次に掲げる区分に応じそれぞれ次に定める方法

Article 120, paragraph (1), item (i), (a)

Buildings acquired on or before March 31, 1998: the following methods;

平成十年三月三十一日以前に取得された建物 次に掲げる方法

Article 120, paragraph (1), item (i), (a), (1)

The former straight-line method (meaning a method of depreciating, as the depreciation allowance for each year, the amount calculated by multiplying the amount obtained by deducting the residual value from the acquisition price of the Depreciable Asset by the depreciation rate corresponding to the useful life of that asset such that the depreciation allowance is the same every year; the same applies hereinafter in this Division and Division 3 (Calculation of Depreciation Allowances));

旧定額法(当該減価償却資産の取得価額からその残存価額を控除した金額にその償却費が毎年同一となるように当該資産の耐用年数に応じた償却率を乗じて計算した金額を各年分の償却費として償却する方法をいう。以下この目及び第三目(減価償却資産の償却費の計算)において同じ。)

Article 120, paragraph (1), item (i), (a), (2)

The former declining-balance method (meaning a method of depreciating, as the depreciation allowance for each year, the amount calculated by multiplying the acquisition price of the Depreciable Asset (in the case of depreciation from the second year on, the amount obtained by deducting from that acquisition price the amount already included as depreciation allowance in necessary expenses in calculating the amount of real property income, the amount of business income, the amount of timber income, or the amount of miscellaneous income for each year) by the depreciation rate corresponding to the useful life of that asset such that the depreciation allowance declines at a constant rate every year; the same applies hereinafter in this Division and Division 3);

旧定率法(当該減価償却資産の取得価額(第二年目以後の償却の場合にあつては、当該取得価額から既に償却費として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た金額を控除した金額)にその償却費が毎年一定の割合で逓減するように当該資産の耐用年数に応じた償却率を乗じて計算した金額を各年分の償却費として償却する方法をいう。以下この目及び第三目において同じ。)

Article 120, paragraph (1), item (i), (b)

Buildings other than the buildings set forth in (a): the former straight-line method;

イに掲げる建物以外の建物 旧定額法

Article 120, paragraph (1), item (ii)

Associated facilities of buildings set forth in Article 6, item (i) (Scope of Depreciable Assets) and Depreciable Assets set forth in items (ii) through (vii) of that Article (excluding those set forth in the following item and item (vi)): the following methods;

第六条第一号(減価償却資産の範囲)に掲げる建物の附属設備及び同条第二号から第七号までに掲げる減価償却資産(次号及び第六号に掲げるものを除く。) 次に掲げる方法

Article 120, paragraph (1), item (ii), (a)

The former straight-line method;

旧定額法

Article 120, paragraph (1), item (ii), (b)

The former declining-balance method;

旧定率法

Article 120, paragraph (1), item (iii)

Depreciable Assets for mining (excluding those set forth in items (v) and (vi)): the following methods;

鉱業用減価償却資産(第五号及び第六号に掲げるものを除く。) 次に掲げる方法

Article 120, paragraph (1), item (iii), (a)

The former straight-line method;

旧定額法

Article 120, paragraph (1), item (iii), (b)

The former declining-balance method;

旧定率法

Article 120, paragraph (1), item (iii), (c)

The former units-of-production method (meaning a method of depreciating, as the depreciation allowance for that year, the amount calculated by multiplying the amount per fixed unit, calculated by dividing the amount obtained by deducting the residual value from the acquisition price of the Depreciable Asset for mining by the planned extraction quantity of the mining area to which that asset belongs within the period of the useful life of that asset (if the planned extraction years of the mining area to which that asset belongs are shorter than that useful life, the planned extraction years of that mining area), by the quantity extracted from that mining area in each year; the same applies hereinafter in this Division and Division 3);

旧生産高比例法(当該鉱業用減価償却資産の取得価額からその残存価額を控除した金額を当該資産の耐用年数(当該資産の属する鉱区の採掘予定年数がその耐用年数より短い場合には、当該鉱区の採掘予定年数)の期間内における当該資産の属する鉱区の採掘予定数量で除して計算した一定単位当たりの金額に各年における当該鉱区の採掘数量を乗じて計算した金額をその年分の償却費として償却する方法をいう。以下この目及び第三目において同じ。)

Article 120, paragraph (1), item (iv)

Intangible Fixed Assets set forth in Article 6, item (viii) (excluding the mining rights set forth in the following item) and living organisms set forth in item (ix) of that Article: the former straight-line method;

第六条第八号に掲げる無形固定資産(次号に掲げる鉱業権を除く。)及び同条第九号に掲げる生物 旧定額法

Article 120, paragraph (1), item (v)

Mining rights set forth in Article 6, item (viii), (a): the following methods;

第六条第八号イに掲げる鉱業権 次に掲げる方法

Article 120, paragraph (1), item (v), (a)

The former straight-line method;

旧定額法

Article 120, paragraph (1), item (v), (b)

The former units-of-production method;

旧生産高比例法

Article 120, paragraph (1), item (vi)

Foreign lease assets (meaning Depreciable Assets that are the subject of a lease transaction prescribed in Article 184-2, paragraph (1) (Calculation of Income in Each Class Pertaining to Lease Transactions) of the Order for Enforcement of the Income Tax Act prior to the amendment by the Cabinet Order Partially Amending the Order for Enforcement of the Income Tax Act (Cabinet Order No. 82 of 2007) (excluding those treated as transactions other than lease transactions of assets under that paragraph or paragraph (2) of that Article; hereinafter in this item referred to as "pre-amendment lease transactions") and that are leased to a Nonresident or a Foreign Corporation (excluding those used exclusively for business conducted by those persons in Japan); the same applies hereinafter in this paragraph and the following paragraph): the former overseas lease period straight-line method (meaning a method of depreciating, as the depreciation allowance for each year, the amount calculated by dividing the remainder obtained by deducting the estimated residual value from the acquisition price of the foreign lease asset pertaining to the pre-amendment lease transaction by the number of months of the period of the lease of that foreign lease asset specified in the contract pertaining to that pre-amendment lease transaction and multiplying the result by the number of months of the period of the lease of that foreign lease asset in that year; the same applies in Division 3).

国外リース資産(所得税法施行令の一部を改正する政令(平成十九年政令第八十二号)による改正前の所得税法施行令第百八十四条の二第一項(リース取引に係る各種所得の金額の計算)に規定するリース取引(同項又は同条第二項の規定により資産の賃貸借取引以外の取引とされるものを除く。以下この号において「改正前リース取引」という。)の目的とされている減価償却資産で非居住者又は外国法人に対して賃貸されているもの(これらの者の専ら国内において行う事業の用に供されるものを除く。)をいう。以下この項及び次項において同じ。) 旧国外リース期間定額法(改正前リース取引に係る国外リース資産の取得価額から見積残存価額を控除した残額を、当該改正前リース取引に係る契約において定められている当該国外リース資産の賃貸借の期間の月数で除し、これにその年における当該国外リース資産の賃貸借の期間の月数を乗じて計算した金額を各年分の償却費として償却する方法をいう。第三目において同じ。)

Article 120, paragraph (2)

The Depreciable Assets for mining prescribed in item (iii) of the preceding paragraph are Depreciable Assets directly necessary for the operation of mining whose value would be significantly reduced by the discontinuation of mining, and the estimated residual value prescribed in item (vi) of that paragraph means the amount equivalent to the amount of the consideration for the transfer that is expected if a foreign lease asset is transferred at the time of the end of its lease.

前項第三号に規定する鉱業用減価償却資産とは、鉱業経営上直接必要な減価償却資産で鉱業の廃止により著しくその価値を減ずるものをいい、同項第六号に規定する見積残存価額とは、国外リース資産をその賃貸借の終了の時において譲渡するとした場合に見込まれるその譲渡対価の額に相当する金額をいう。

Article 120, paragraph (3)

The number of months in paragraph (1), item (vi) is to be calculated according to the calendar, and if a fraction of less than one month arises, it is counted as one month.

第一項第六号の月数は、暦に従つて計算し、一月に満たない端数を生じたときは、これを一月とする。

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