# 所得税法施行令 / Order for Enforcement of the Income Tax Act — 第十二条 (Supplementary Provisions, Article 12)

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- Law: 所得税法施行令 (Order for Enforcement of the Income Tax Act), 昭和四十年政令第九十六号
- English title "Order for Enforcement of the Income Tax Act": Ministry of Justice translation
- Kind: CabinetOrder — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第十二条 (Supplementary Provisions, Article 12)（国内源泉所得等に関する経過措置） — address `suppl-4272-141/art-12`
- Text in force since: 2026-05-22
- URL (the page that opens at this provision): https://japanlaw.org/ja/income-tax-act-enforcement-order/suppl-4272-141/art-12
- e-Gov law ID: 340CO0000000096 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page.
- Every provision below carries its address and its URL on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

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### 第十二条（国内源泉所得等に関する経過措置） — Transitional Measures for Domestic Source Income, etc.
<sup>caption: machine translation, not official</sup>
<sup>suppl-4272-141/art-12 · https://japanlaw.org/ja/income-tax-act-enforcement-order/suppl-4272-141/art-12</sup>

**第一項**  平成二十六年改正法附則第十条第二項（国内源泉所得等に関する経過措置）の規定によりなおその効力を有するものとされる平成二十六年旧所得税法第百六十一条（国内源泉所得）の規定の適用については、旧令第二百七十九条から第二百八十八条まで（国内において行なう事業から生ずる所得等）の規定は、なおその効力を有する。
<sup>suppl-4272-141/art-12/par-1 · https://japanlaw.org/ja/income-tax-act-enforcement-order/suppl-4272-141/art-12/par-1</sup>
With regard to the application of Article 161 (Domestic Source Income) of the 2014 Former Income Tax Act, which is to remain in force pursuant to the provisions of Article 10, paragraph (2) (Transitional Measures for Domestic Source Income, etc.) of the Supplementary Provisions of the 2014 Amendment Act, the provisions of Articles 279 through 288 (Income Arising from Business Conducted in Japan, etc.) of the Former Order remain in force.
<sup>machine translation, not official</sup>

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 所得税法施行令 — the text in force from 2026-05-22 (https://laws.e-gov.go.jp/law/340CO0000000096/20260522_508CO0000000093), retrieved 2026-11-06
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Order for Enforcement of the Income Tax Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3121/tb), retrieved 2026-11-06
- claude-sonnet-5-5 — Machine translation, batch income-tax-act-enforcement-order-20261106T163957-160, translated 2026-11-07
- This site's parser, version 229 — 所得税法施行令 — structure, counts, cross-references and defined terms, computed 2026-11-06
