Post Office Horizon IT Inquiry

Ongoing

Post Office Horizon Inquiry

Chair Sir Wyn Williams Judge / Judiciary
Established 01 Jun 2021
Commissioned by Department for Business and Trade Originally established under Department for Business, Energy and Industrial Strategy (BEIS)

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.

5 years Duration (ongoing)
£74.7m Total Cost
114 Witnesses
96 Hearing Days
303 Statements
Government Response

Total Recommendations 27
Data last updated: 2 Mar 2026 · Source
Data verified: 26 May 2026 (import)
How to read this

Government Response tracks what the government said it would do (accepted, rejected, etc.).

Full methodology

2 debates 26 questions since Jan 2022
Written Question Post Office Horizon IT Inquiry
Dr Al Pinkerton (Liberal Democrat)
11 Nov 2025
Written Question Fujitsu: Contracts
John Milne (Liberal Democrat)
13 Oct 2025
Written Question Fujitsu: Contracts
John Milne (Liberal Democrat)
13 Oct 2025
17 Jul 2025
Written Question Procurement: Standards
Baroness Ritchie of Downpatrick (Labour)
14 Jul 2025
View all 34 mentions →
19 Feb 2020
Inquiry Established

Initially non-statutory inquiry established.

Source
01 Sep 2020
Chair Appointed

Sir Wyn Williams appointed as Chair.

01 Jun 2021
Converted to Statutory

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 Expected

Chair Sir Wyn Williams expected to publish final report.

Source
Total Inquiry Cost (Cumulative) £74,726,556
Cost Breakdown (to Mar 2025)
Inquiry Legal Costs £24,455,048 Panel remuneration & Counsel to the Inquiry
Core Participant Legal Costs £15,904,255 Legal funding for core participants
Staff £4,915,306
Accommodation £8,851,979
Technology £4,092,512
Other £16,507,456
Total inquiry cost £74.73 million (to March 2025). Inquiry ongoing - report expected 2025. Category breakdown: inquiry_legal_costs = Chairman/Chair + Legal team + Counsel; staff_costs = Secretariat; accommodation_costs = Venue hire; technology_costs = Audio visual + Software/IT; other_costs = External document review lawyers + Expert witnesses + Other operational expenses.
Cost History
Period Total Inquiry Legal CP Legal Source
Mar 2025 £26,017,032 £8,738,949 £5,202,243
Mar 2025 (cum.) £74,726,556 £24,455,048 £15,904,255
Mar 2024 £26,770,510 £8,373,766 £6,150,587
Mar 2023 £18,491,383 £5,717,654 £3,905,857
Mar 2022 £3,087,287 £1,492,280 £645,569
Mar 2021 £360,345 £132,399 -

Recommendations (6)

POH-4
Accepted in Part
Fund legal advice for HSS claimants before scheme choice
Recommendation
All claimants in HSS shall be entitled to obtain legal advice funded by the Department prior to choosing between accepting the Fixed Sum Offer or seeking financial redress which is assessed. The remuneration for such advice shall be in accordance … Read more
Published evidence summary
- The recommendation required all HSS claimants to be entitled to funded legal advice prior to choosing between the Fixed Sum Offer and assessed redress.
- The Department for Business and Trade broadly accepted this recommendation on 9 October 2025, but stated that funded legal advice would be provided at the appeal permission stage rather than upfront as recommended (Government response to the Post Office Horizon IT Inquiry report (volume 1), DBT, 9 October 2025).
- The Business and Trade Select Committee noted the government provides funded legal advice at appeal stage rather than upfront as recommended (Business and Trade Select Committee evidence session, January 2026).
- The Business and Trade Committee report HC 1598 concluded the government had not properly implemented this recommendation, finding that legal advice is not available at the point of decision between Fixed Sum Offer and assessed redress (Business and Trade Committee, HC 1598, March 2026).
Department for Business and Trade (Primary)
View Details
POH-15
Accepted in Part
Set deadline for HSS claims with guidance on late applications
Recommendation

No claims for financial redress under HSS shall be entertained after midnight 27 November 2025.

Published evidence summary
- The recommendation called for HSS to be closed to new claims after 27 November 2025.
- The Department for Business and Trade broadly accepted this recommendation on 9 October 2025 and closed the HSS to new claims on 31 January 2026, a later date than specified to allow adequate notice (Government response to the Post Office Horizon IT Inquiry report (volume 1), DBT, 9 October 2025).
- The Post Office issued reminder letters to outstanding claimants, and DBT published guidance on exceptional cases (Government response to the Post Office Horizon IT Inquiry report (volume 1), DBT, 9 October 2025).
- The Business and Trade Select Committee confirmed the HSS was closed to new claims on 31 January 2026 (Business and Trade Select Committee evidence session, January 2026).
Department for Business and Trade (Primary)
View Details
POH-IR1-1
Accepted in Part
Allow Advisory Board to monitor individual compensation cases
Recommendation

The Horizon Compensation Advisory Board should not be prevented from monitoring individual cases in which compensation has been or is to be determined by paragraph 4 of its Terms of Reference.

Published evidence summary
- The Department for Business and Trade accepted this recommendation in part on 21 September 2023, confirming the Horizon Compensation Advisory Board would consider whether "full and fair compensation is being paid out to applicants" (Government response to the Post Office Horizon IT Inquiry interim report, DBT, September 2023).
- The Horizon Compensation Advisory Board has published quarterly reports on its monitoring activities, including monitoring individual cases (Horizon Compensation Advisory Board published reports, ongoing).
- The Business and Trade Select Committee heard evidence confirming the Advisory Board was performing this monitoring function (Business and Trade Select Committee evidence session, January 2026).
Department for Business and Trade (Primary)
View Details
POH-IR1-3
Accepted in Part
Make monitoring full and fair compensation a core Board duty
Recommendation

It must be one of the core duties of the Horizon Compensation Advisory Board that it monitors whether compensation payments are full and fair.

Published evidence summary
- The Department for Business and Trade accepted this recommendation in part on 21 September 2023, endorsing the Board's view that it "would not be possible or advisable for us to intervene in individual cases" but confirming the Board's core duty to monitor whether compensation payments are fair and timely (Government response to the Post Office Horizon IT Inquiry interim report, DBT, September 2023).
- The Horizon Compensation Advisory Board continues to monitor whether compensation payments are fair across all schemes (Horizon Compensation Advisory Board published reports, ongoing).
- The Business and Trade Select Committee heard evidence from the Advisory Board on its monitoring activities (Business and Trade Select Committee evidence session, January 2026).
Department for Business and Trade (Primary)
View Details
POH-IR1-7
Accepted in Part
Amend Limitation Act to extend GLO deadline if needed
Recommendation
HM Government shall bring forward as soon as possible legislation amending section 11(3)(a) of the Limitation Act 1980 to allow payments of compensation under the GLO scheme to be made to applicants after midnight on 7 August 2024 if that … Read more
Published evidence summary
- The Department for Business and Trade accepted this recommendation in principle on 21 September 2023, stating it was determined to deliver the GLO scheme by August 2024 and would consider bringing forward legislation if the deadline could not be met (Government response to the Post Office Horizon IT Inquiry interim report, DBT, September 2023).
- The Post Office (Horizon System) Compensation Act 2024 (c. 1) received Royal Assent on 23 January 2024, establishing a statutory framework for the compensation schemes (Post Office (Horizon System) Compensation Act 2024).
- The Business and Trade Select Committee noted the Limitation Act amendment had not been brought forward as a standalone bill as originally recommended (Business and Trade Select Committee evidence session, January 2026).
- The GLO scheme continued operating beyond August 2024 without the specific Limitation Act amendment recommended.
Department for Business and Trade (Primary)
View Details
POH-IR1-8
Accepted in Part
Set agreed closing date for Horizon Shortfall Scheme applications
Recommendation

No applications for compensation to the Horizon Shortfall Scheme shall be entertained after such date as shall be agreed by the Minister, the Department for Business and Trade, the Post Office and the Horizon Compensation Advisory Board.

Published evidence summary
- The Department for Business and Trade accepted this recommendation in part on 21 September 2023, committing to discuss and agree a closing date with the Post Office, with the Advisory Board consulted before any date was set (Government response to the Post Office Horizon IT Inquiry interim report, DBT, September 2023).
- The HSS closing date was subsequently set as 31 January 2026, superseding this interim recommendation through the Volume 1 recommendation POH-15 (Government response to the Post Office Horizon IT Inquiry report (volume 1), DBT, 9 October 2025).
- The HSS closed to new claims on 31 January 2026 as confirmed by the Business and Trade Select Committee (Business and Trade Select Committee evidence session, January 2026).
Department for Business and Trade (Primary)
View Details