Public Inquiry

Post Office Horizon IT Inquiry

Status: Ongoing Chair: Sir Wyn Williams Established: Jun 2021 Commissioned by: Department for Business and Trade

Public inquiry into the Post Office Horizon IT scandal, examining how more than 900 sub-postmasters were wrongly prosecuted based on faulty Fujitsu software between 1999 and 2015.

Response breakdown

27 recommendations total

70%

22%

19 (70%) — Accepted

6 (22%) — Accepted in Part

1 (4%) — Not Accepted

1 (4%) — Under Review

Reports & milestones

Reports

17 Jul 2023 8 tracked recs First Interim Report: Compensation · Tracked recommendations · PDF

08 Jul 2025 19 tracked recs Post Office Horizon IT Inquiry: Final Report · Tracked recommendations · PDF

Timeline

19 Feb 2020 Inquiry Establish… Initially non-statutory inquiry established. · Source

01 Sep 2020 Chair Appointed Sir Wyn Williams appointed as Chair.

01 Jun 2021 Converted to Stat… Inquiry converted to statutory public inquiry with power to compel witnesses.

14 Feb 2022 Hearings Begin Human impact hearings commenced.

15 May 2023 Phase 4 Hearings Phase 4 examining Fujitsu's role began.

08 Jan 2024 Phase 6 Hearings Phase 6 examining Post Office Ltd began.

13 May 2024 Phase 7 Hearings Phase 7 examining Government, UKGI and Royal Mail Group.

30 Jun 2025 Final Report Expe… Chair Sir Wyn Williams expected to publish final report. · Source

Recommendations

1 shown (filtered)

Code	Recommendation	Addressed to	Response
POH-13	Close HSS Dispute Resolution Procedure when HSSA opens The current Dispute Resolution Procedure in HSS should be closed once all claimants currently within the Procedure have either (a) settled their …	Department for Business and Trade	Not Accepted	View →

Parliamentary activity

34 mentions since Jan 2022

2 debates 26 questions

11 Nov 2025 Written Question Post Office Horizon IT Inquiry
Dr Al Pinkerton (Liberal Democrat)

13 Oct 2025 Written Question Fujitsu: Contracts
John Milne (Liberal Democrat)

17 Jul 2025 Hansard Debate Post Office Horizon Inquiry: Volume 1

14 Jul 2025 Written Question Procurement: Standards
Baroness Ritchie of Downpatrick (Labour)

View all 34 mentions →

Costs

Total: £80,000,000

Period	Total	Inquiry legal	CP legal	Source
Mar 2026 (cum.)	£80,000,000	£24,455,048	£15,904,255	link
Mar 2025	£26,017,032	£8,738,949	£5,202,243	link
Mar 2024	£26,770,510	£8,373,766	£6,150,587	link
Mar 2023	£18,491,383	£5,717,654	£3,905,857	link
Mar 2022	£3,087,287	£1,492,280	£645,569	link
Mar 2021	£360,345	£132,399	—	link