# 所得税法 / Income Tax Act — 第百六十五条の三 (Article 165-3)

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- Law: 所得税法 (Income Tax Act), 昭和四十年法律第三十三号
- English title "Income Tax Act": Ministry of Justice translation
- Kind: Act — 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: 第百六十五条の三 (Article 165-3)（恒久的施設に帰せられるべき純資産に対応する負債の利子の必要経費不算入） — address `art-165-3`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/income-tax-act/art-165-3
- e-Gov law ID: 340AC0000000033 — 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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### 第百六十五条の三（恒久的施設に帰せられるべき純資産に対応する負債の利子の必要経費不算入） — Exclusion of Interest on Liabilities Corresponding to Net Assets Attributable to a Permanent Establishment from Necessary Expenses
<sup>caption: machine translation, not official</sup>
<sup>art-165-3 · https://japanlaw.org/en/income-tax-act/art-165-3</sup>

      **第一項**  非居住者の各年の恒久的施設に係る純資産の額として政令で定めるところにより計算した金額が、当該非居住者の純資産の額に相当する額のうち当該恒久的施設に帰せられるべき金額として政令で定めるところにより計算した金額に満たない場合には、当該非居住者のその年の恒久的施設を通じて行う事業に係る負債の利子（これに準ずるものとして政令で定めるものを含む。）の額として政令で定める金額のうち、その満たない金額に対応する部分の金額として政令で定めるところにより計算した金額は、当該非居住者のその年分の恒久的施設帰属所得につき第百六十五条第一項（総合課税に係る所得税の課税標準、税額等の計算）の規定により準じて計算する不動産所得の金額、事業所得の金額、山林所得の金額若しくは雑所得の金額又は一時所得の金額の計算上、必要経費又は支出した金額に算入しない。
      <sup>art-165-3/par-1 · https://japanlaw.org/en/income-tax-act/art-165-3/par-1</sup>
      If the amount calculated pursuant to Cabinet Order as the amount of net assets pertaining to the permanent establishment of a Nonresident for each year is less than the amount calculated pursuant to Cabinet Order as the amount that should be attributed to the permanent establishment out of the amount equivalent to the amount of net assets of the Nonresident, the amount calculated pursuant to Cabinet Order as the part corresponding to the shortfall, out of the amount prescribed by Cabinet Order as the amount of interest on liabilities (including anything prescribed by Cabinet Order as equivalent thereto) related to the business conducted by the Nonresident through the permanent establishment in that year, is not included in necessary expenses or the amount expended in calculating the Nonresident's real property income, business income, timber income, or miscellaneous income, or occasional income for that year, calculated in accordance with Article 165, paragraph (1) (Calculation of the Tax Base and Amount of Income Taxes Imposed on Aggregate Income) with regard to the Nonresident's income attributable to a permanent establishment for that year.
      <sup>machine translation, not official</sup>

      **第二項**  前項の規定の適用に関し必要な事項は、政令で定める。
      <sup>art-165-3/par-2 · https://japanlaw.org/en/income-tax-act/art-165-3/par-2</sup>
      Cabinet Order provides for the necessary particulars concerning the application of the provisions of the preceding paragraph.
      <sup>machine translation, not official</sup>

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## Cites
- art-165-3/par-1: 第百六十五条第一項 → 所得税法 第百六十五条第一項 (Article 165, paragraph (1)), art-165/par-1 — https://japanlaw.org/en/income-tax-act/art-165/par-1
- art-165-3/par-2: 前項 → 所得税法 第百六十五条の三第一項 (Article 165-3, paragraph (1)), art-165-3/par-1 — https://japanlaw.org/en/income-tax-act/art-165-3/par-1

## Cited by

2 provisions cite this one. No official source publishes this direction.

- 所得税法 第百六十五条の三第二項（恒久的施設に帰せられるべき純資産に対応する負債の利子の必要経費不算入） — https://japanlaw.org/en/income-tax-act/art-165-3/par-2
- 所得税法 附則第十二条第一項（総合課税に係る所得税の課税標準等に関する経過措置） — https://japanlaw.org/en/income-tax-act/suppl-4261-10/art-12/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 所得税法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/340AC0000000033/20261001_507AC0000000070), retrieved 2026-10-05
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Income Tax Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3120/tb), retrieved 2026-09-18
- claude-opus-5[1m] — Machine translation, batch income-tax-act-20260918T180319-026, translated 2026-09-18
- claude-opus-5[1m] — Machine translation, batch income-tax-act-20260918T205718-010, translated 2026-09-18
- This site's parser, version 224 — 所得税法 — structure, counts, cross-references and defined terms, computed 2026-10-05