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.

Bill to Partially Amend the Income Tax Act and Other Acts

所得税法等の一部を改正する法律案

Published: not stated by the source · Source: House of Representatives — Diet Bills · Stage: Enacted · Area: Tax / Stamp Duty · Impact (preliminary): Medium · First detected by this dashboard: 2026-08-06

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

This Cabinet-submitted bill proposes partial amendments to the Income Tax Act and other acts. The House of Representatives listing records it as Bill No. 3 submitted in the 221st Diet session and reports its deliberation status as passed; no promulgation or effective date is provided.

Business Impact

Income taxpayers may be affected by the amendments, but the listing does not identify the provisions changed or the scope of taxpayers concerned.

Recommended Action

Reviewing the official bill text and legislative history would help clarify the amended provisions, final text, and applicable commencement dates.

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. Date not stated by the source — Bill listed by the House of Representatives (Diet session 221) 所得税法等の一部を改正する法律案(審議状況:成立) (this update) Original Japanese source
  2. 2026-03-31 — Promulgated (statute recorded by e-Gov Law Search) 所得税法等の一部を改正する法律(令和八年法律第十二号) Dashboard page Original Japanese source
  3. 2026-04-01 — Effective date stated by e-Gov Law Search 所得税法、租税特別措置法 Dashboard page Original Japanese source
  4. 2026-05-01 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source
  5. 2026-06-25 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source
  6. 2026-07-31 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source
  7. 2026-10-01 — Effective date stated by e-Gov Law Search 法人税法、租税特別措置法 Dashboard page Original Japanese source
  8. 2026-12-01 — Effective date stated by e-Gov Law Search 所得税法、租税特別措置法 Dashboard page Original Japanese source
  9. 2027-01-01 — Effective date stated by e-Gov Law Search 所得税法、租税特別措置法 Dashboard page Original Japanese source
  10. 2027-05-20 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source
  11. 2028-04-01 — Effective date stated by e-Gov Law Search 租税特別措置法 Dashboard page Original Japanese source