Reliability note

Titles and AI summaries are unofficial English monitoring aids, not legal advice or official translations. Each link opens the original Japanese official source, which remains authoritative.

Act Partially Amending the Income Tax Act (Act No. 3 of 2023) - Effective 2027-01-01

所得税法等の一部を改正する法律

Published: 2023-03-31 · Source: e-Gov Law Search — Updated Laws · Stage: Scheduled to Take Effect · Area: Tax / Stamp Duty · Impact (preliminary): Medium · First detected by this dashboard: 2026-09-09

View the original Japanese source More Tax / Stamp Duty updates Search all updates in the dashboard

AI summary

Generated by AI from the Japanese source metadata. It is an unofficial monitoring aid, not legal advice, and may contain errors. The area, stage, and impact labels are preliminary keyword-based triage labels. Confirm every point in the original Japanese source.

Summary

The e-Gov law update listing records an amending act, 'Act Partially Amending the Income Tax Act, etc.' (Reiwa 5 Act No. 3), as affecting the Income Tax Act (Showa 40 Act No. 33). The metadata gives a promulgation date of 2023-03-31 and an enforcement date of 2027-01-01. The specific provisions changed are not stated in the provided metadata.

Business Impact

Depending on which provisions this amendment touches, it could affect income tax treatment for individuals or businesses once it takes effect in 2027. The scope and content of the changes cannot be determined from the metadata provided.

Recommended Action

Review the official Japanese text on e-Gov, and consult qualified tax professionals if needed, to confirm which provisions are amended and how the 2027-01-01 enforcement date applies.

Timeline of related official records

Related official records are linked only when names and instrument numbers match exactly, so this timeline may be incomplete. Dates are as stated by the official sources. It is a monitoring aid, not legal advice; the original Japanese sources are authoritative.

  1. 2023-03-31 — Promulgated (statute recorded by e-Gov Law Search) 所得税法等の一部を改正する法律(令和五年法律第三号) (this update) Original Japanese source
  2. 2027-01-01 — Effective date stated by e-Gov Law Search 所得税法 (this update) Original Japanese source
  3. 2030-01-01 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source