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.

4 years, 9 months 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: 23 Mar 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
According to the Department for Business and Trade (DBT), DBT broadly accepted this recommendation, providing funded legal advice at the Horizon Shortfall Scheme Appeal (HSSA) appeal permission stage, rather than upfront before claimants choose between a Fixed Sum Offer or assessed redress. According to the Department for Business and Trade (DBT), an information support service has also been established to explain scheme options, but the Business and Trade Committee HC 1598 concluded on 13 March 2026 that this recommendation had not been properly implemented due to the timing of the legal advice, a concern also raised by the Business and Trade Select Committee on 6 January 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
According to the Department for Business and Trade (DBT), DBT broadly accepted this recommendation, closing the Horizon Shortfall Scheme (HSS) to new applications on 31 January 2026, a later date than the recommended 27 November 2025. According to the Department for Business and Trade (DBT), the Post Office issued reminder letters to claimants, and DBT committed to publishing guidance for exceptional late applications, and the Business and Trade Select Committee noted the closure date on 6 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
According to the Official government response (2023-09-21, https://www.gov.uk/government/publications/response-to-post-office-horizon-it-inquiry-interim-report-compensation), the Department for Business and Trade partially accepted this recommendation in September 2023, updating the Horizon Compensation Advisory Board's Terms of Reference to include monitoring whether "full and fair compensation is being paid out to applicants" and advising the Minister quarterly. According to the Horizon Compensation Advisory Board (2026-01-01), the Board has since published quarterly reports on its monitoring of individual cases. According to the Horizon Compensation Advisory Board (2026-01-01), the Business and Trade Select Committee heard from the Board in January 2026 regarding the effectiveness of its monitoring role.
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
According to the Official government response (2023-09-21, https://www.gov.uk/government/publications/response-to-post-office-horizon-it-inquiry-interim-report-compensation), the Department for Business and Trade partially accepted this recommendation in September 2023, confirming that monitoring overall fairness of compensation payments is a core duty of the Horizon Compensation Advisory Board. According to the Horizon Compensation Advisory Board (2026-01-01), the Board continues to monitor whether compensation payments are fair and timely across all schemes. According to the Horizon Compensation Advisory Board (2026-01-01), the Business and Trade Select Committee examined the adequacy of the Board's monitoring role in 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
According to the Official government response (2023-09-21, https://www.gov.uk/government/publications/response-to-post-office-horizon-it-inquiry-interim-report-compensation), the Department for Business and Trade accepted this recommendation in principle in September 2023, stating its determination to deliver the General Litigation Order (GLO) scheme by August 2024 and its commitment to consider bringing forward legislation if the deadline appeared at risk. According to Gov.uk progress report (2026-01-31), the Post Office (Horizon System) Compensation Act 2024 was enacted, which implemented interim report recommendations, but according to the Business and Trade Select Committee (2026-01-06), a standalone bill for the Limitation Act amendment had not been brought forward, and the government was considering longer-term legislative options as of January 2026.
Department for Business and Trade (Primary)
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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
According to the Official government response (2023-09-21, https://www.gov.uk/government/publications/response-to-post-office-horizon-it-inquiry-interim-report-compensation), the Department for Business and Trade partially accepted this recommendation in September 2023, committing to discuss and agree a closing date for the Horizon Shortfall Scheme (HSS) with the Post Office, with consultation of the Advisory Board before notification. According to Gov.uk progress report (2026-01-31) and the Horizon Compensation Advisory Board (2026-01-01), the HSS closing date was subsequently set as 31 January 2026, and the scheme closed to new claims on that date.
Department for Business and Trade (Primary)
View Details