第四十八条(有価証券の譲渡原価等の計算及びその評価の方法)
Article 48Calculation of Costs of Transferred Securities and Valuation Methods
居住者の有価証券につき第三十七条第一項(必要経費)の規定によりその者の事業所得の金額の計算上必要経費に算入する金額を算定する場合におけるその算定の基礎となるその年十二月三十一日において有する有価証券の価額は、その者が有価証券について選定した評価の方法により評価した金額(評価の方法を選定しなかつた場合又は選定した評価の方法により評価しなかつた場合には、評価の方法のうち政令で定める方法により評価した金額)とする。
In the calculation of the amount that, pursuant to the provisions of Article 37, paragraph (1) (Necessary Expenses), is included, in association with a Security that a Resident holds, in the necessary expenses that are used to calculate the Resident's business income, the value of a Security held by the Resident on December 31 of the relevant year which is used as the basis for that calculation is the amount of money assessed based on the valuation method that the Resident has selected for Securities (or based on the valuation method prescribed by Cabinet Order, if the Resident does not select a valuation method or if the value of the Security is not assessed based on the selected valuation method).
Cabinet Order provides for the types of the selectable valuation methods referred to in the preceding paragraph, the way of selecting a valuation method, and other necessary particulars concerning the valuation of Securities.
居住者が二回以上にわたつて取得した同一銘柄の有価証券につき第三十七条第一項の規定によりその者の雑所得の金額の計算上必要経費に算入する金額又は第三十八条第一項(譲渡所得の金額の計算上控除する取得費)の規定によりその者の譲渡所得の金額の計算上取得費に算入する金額は、政令で定めるところにより、それぞれの取得に要した金額を基礎として第一項の規定に準じて評価した金額とする。
The amount that, pursuant to the provisions of Article 37, paragraph (1), is included, in association with a Security of the same class that the Resident acquires on two or more occasions, in the necessary expenses that are used to calculate the amount of a Resident's miscellaneous income, or that, pursuant to the provisions of Article 38, paragraph (1) (Acquisition Costs Deducted to Calculate Capital Gains) is included, in association with such a Security, in the acquisition costs that are used to calculate the Resident's capital gains, is the value assessed pursuant to Cabinet Order and in accordance with the provisions of paragraph (1), based on the amount needed to acquire the Security on each occasion.