# 国税通則法 / Act on General Rules for National Taxes — 附　則 (Supplementary Provisions)

This is the Markdown twin of https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

- Law: 国税通則法 (Act on General Rules for National Taxes), 昭和三十七年法律第六十六号
- English title "Act on General Rules for National Taxes": 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: 附　則 (Supplementary Provisions) — address `suppl-5081-12`
- Text in force since: 2026-11-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/337AC0000000066/suppl-5081-12
- Every provision below carries its address and both URLs 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.

---

## 附　則 令和八年三月三一日法律第一二号
<sup>suppl-5081-12 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-12/art-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1</sup>

**第一項**  この法律は、令和八年四月一日から施行する。ただし、次の各号に掲げる規定は、当該各号に定める日から施行する。
<sup>suppl-5081-12/art-1/par-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1</sup>
This Act comes into effect as of April 1, 2026; provided, however, that the provisions set forth in the following items come into effect as of the dates specified respectively in those items.
<sup>machine translation, not official</sup>

  **一から六まで**  略
  <sup>suppl-5081-12/art-1/par-1/item-1-to-6 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-1-to-6 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-1-to-6</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **七**  次に掲げる規定　令和九年十月一日
  <sup>suppl-5081-12/art-1/par-1/item-7 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-7 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-7</sup>
  the following provisions: October 1, 2027;
  <sup>machine translation, not official</sup>

    **イ**  略
    <sup>suppl-5081-12/art-1/par-1/item-7/sub-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-7/sub-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-7/sub-1</sup>
    Omitted
    <sup>machine translation, not official</sup>

    **ロ**  第五条の規定（同条中国税通則法第三十四条の六第三項の改正規定及び同法第七十四条の二の改正規定を除く。）並びに附則第二十三条及び第百二条の規定
    <sup>suppl-5081-12/art-1/par-1/item-7/sub-2 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-7/sub-2 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-7/sub-2</sup>
    the provisions of Article 5 (excluding the provision in that Article amending Article 34-6, paragraph (3) of the Act on General Rules for National Taxes and the provision amending Article 74-2 of that Act), and the provisions of Articles 23 and 102 of the Supplementary Provisions;
    <sup>machine translation, not official</sup>

  **八**  略
  <sup>suppl-5081-12/art-1/par-1/item-8 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-8 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-8</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **九**  次に掲げる規定　令和十年四月一日
  <sup>suppl-5081-12/art-1/par-1/item-9 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-9 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-9</sup>
  the following provisions: April 1, 2028;
  <sup>machine translation, not official</sup>

    **イ**  略
    <sup>suppl-5081-12/art-1/par-1/item-9/sub-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-9/sub-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-9/sub-1</sup>
    Omitted
    <sup>machine translation, not official</sup>

    **ロ**  第五条中国税通則法第七十四条の二の改正規定
    <sup>suppl-5081-12/art-1/par-1/item-9/sub-2 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1/par-1/item-9/sub-2 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1/par-1/item-9/sub-2</sup>
    the provision in Article 5 amending Article 74-2 of the Act on General Rules for National Taxes;
    <sup>machine translation, not official</sup>

### 第九十九条（罰則に関する経過措置） — Transitional Measures Concerning Penal Provisions
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-12/art-99 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-99 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-99</sup>

**第一項**  この法律（附則第一条各号に掲げる規定にあっては、当該規定。以下この条において同じ。）の施行前にした行為及びこの附則の規定によりなお従前の例によることとされる場合におけるこの法律の施行後にした行為に対する罰則の適用については、なお従前の例による。
<sup>suppl-5081-12/art-99/par-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-99/par-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-99/par-1</sup>
The provisions then in force continue to govern the application of penal provisions to conduct engaged in before this Act (or, for the provisions set forth in the items of Article 1 of the Supplementary Provisions, those provisions; the same applies hereinafter in this Article) comes into effect and to conduct engaged in after this Act comes into effect in the cases in which prior laws are to continue to govern pursuant to the provisions of these Supplementary Provisions.
<sup>machine translation, not official</sup>

### 第百条（政令への委任） — Delegation to Cabinet Order
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-12/art-100 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-100 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-100</sup>

**第一項**  この附則に規定するもののほか、この法律の施行に関し必要な経過措置は、政令で定める。
<sup>suppl-5081-12/art-100/par-1 · https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-100/par-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-100/par-1</sup>
Beyond what is provided for in these Supplementary Provisions, transitional measures necessary for the enforcement of this Act are specified by Cabinet Order.
<sup>machine translation, not official</sup>

---

## Cites
- suppl-5081-12/art-99/par-1: 附則第一条 → 国税通則法 附則第一条 (Supplementary Provisions, Article 1), suppl-5081-12/art-1 — https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-1
- suppl-5081-12/art-99/par-1: この条 → 国税通則法 附則第九十九条 (Supplementary Provisions, Article 99), suppl-5081-12/art-99 — https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-99 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-99

## Cited by

1 provision cites this one. No official source publishes this direction.

- 国税通則法 附則第九十九条第一項（罰則に関する経過措置） — https://japanlaw.org/ja/national-tax-general-rules-act/suppl-5081-12/art-99/par-1 · https://japanlaw.org/l/337AC0000000066/suppl-5081-12/art-99/par-1

---

## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 国税通則法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/337AC0000000066/20260624_508AC0000000046), retrieved 2026-09-18
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on General Rules for National Taxes — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3119/tb), retrieved 2026-09-18
- claude-opus-5[1m] — Machine translation, batch national-tax-general-rules-act-20260918T180319-060, translated 2026-09-18
- This site's parser, version 223 — 国税通則法 — structure, counts, cross-references and defined terms, computed 2026-09-18