Public Inquiry

Post Office Horizon IT Inquiry

Ongoing · Chair: Sir Wyn Williams · Established June 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.

Where it stands

Public hearings have been held on 242 days, most recently on 17 December 2024.

The inquiry has published 2 reports, most recently Post Office Horizon IT Inquiry: Volume 1 Report on 8 July 2025.

The most recent government response on the record is RESP0000004 - Post Office Limited Letter to Inquiry in response to Recommendation 19., dated 31 October 2025.

Government response (27 recommendations)

Delivery (the addressees’ latest statements)

  • Cabinet Office says completed 14
  • No statement from Department for Business and Trade found in the sources searched 8
  • Cabinet Office says in progress 4
  • Department for Business and Trade says not accepted 1

Record checked against the sources 18 June 2026. Latest activity 5 October 2026.

Latest on the recommendations

All 27 recommendations

Reports

Reports and timeline

Recent milestones

  • Final report Volume 1 published8 July 2025
  • Final Report Expected30 June 2025
  • Hearings conclude17 December 2024
Full timeline

Costs

£83,739,770

Total reported cost to March 2026 Costs in detail

Parliament

35

mentions in Parliament Parliamentary activity

Recommendations

4 shown (filtered)
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POH-IR1-2: Publish Advisory Board meeting reports within 21 days

Accepted · No statement from Department for Business and Trade found

Recommended

The Horizon Compensation Advisory Board shall produce written reports in respect of each of their meetings in relation to each of the three schemes and publish the same within 21 days of the date of each meeting.

Since then (summary written by this site)

The Inquiry recommended that Advisory Board meeting reports be published within 21 days. In October 2023, the Department for Business and Trade stated that written reports of board discussions were already published and were issued within a week unless the board agreed otherwise, noting earlier records for the Group Litigation Order Compensation Scheme Advisory Board but not mentioning the three schemes (Department for Business and Trade response, Oct 2023).

Addressed to Department for Business and Trade · Full record

POH-IR1-4: Increase Advisory Board membership if needed for capacity

Accepted · No statement from Department for Business and Trade found

Recommended

If the Horizon Compensation Advisory Board as constituted consider it necessary, the number of persons appointed to the Board should be increased so as to ensure that the Board has sufficient capacity to perform the functions set out above.

Since then (summary written by this site)

The Inquiry recommended expanding Horizon Compensation Advisory Board membership if necessary for capacity. In its response published in October 2023, the Department for Business and Trade stated that it would "keep under review the case for expanding the board, in discussion with its current members" (Department for Business and Trade response, Oct 2023).

Addressed to Department for Business and Trade · Full record

POH-IR1-5: Seek court directions to resolve the DBT and Moore UK difference on bankrupt applicants

Accepted · No statement from Department for Business and Trade found

Recommended

DBT shall take such steps as are necessary within 28 days of the date hereof, to seek appropriate directions under section 306 Insolvency Act 1986 so as to enable a court to resolve the difference of view between DBT and Moore UK and/or it shall take all appropriate steps (including providing appropriate legal funding) so as to enable a sub-postmaster to seek appropriate directions under that section.

Since then (summary written by this site)

The Inquiry asked the Department for Business and Trade to seek directions regarding bankrupt applicants. In October 2023, the department stated that it had instructed counsel to apply for expedited court directions resolving its dispute with Moore UK, and that it would ask for an affected postmaster to be named as an interested party (Department for Business and Trade response, Oct 2023). Its response did not mention providing legal funding for a postmaster to seek directions (Department for Business and Trade response, Oct 2023).

Addressed to Department for Business and Trade · Full record

POH-IR1-6: Publish proposals for equal tax treatment of compensation payments

Accepted · No statement from Department for Business and Trade found

Recommended

DBT shall publish in as much detail as it reasonably can and as soon as it reasonably can, its proposals for ensuring that applicants to all schemes are treated equally and fairly so far as their liability to or exemption from income tax, capital gains tax and inheritance tax is concerned as the same relates to compensation payments under each scheme.

Since then (summary written by this site)

The Inquiry asked the government to publish proposals ensuring equal tax treatment across compensation schemes. In October 2023, the Department for Business and Trade (DBT) stated that payments under the Group Litigation Order (GLO) scheme and for overturned convictions were exempt from income tax, National Insurance contributions, and capital gains tax, while tax-exempt top-up payments were arranged for the Horizon Shortfall Scheme (HSS), with all three schemes exempt from inheritance tax (Department for Business and Trade response, Oct 2023).

Addressed to Department for Business and Trade · Full record

Reports and timeline

Timeline

Inquiry announced

The Prime Minister committed to an independent inquiry into the Horizon IT system, established on a non-statutory basis.

Source

Prime Minister committed to an inquiry

The Prime Minister committed to an inquiry on 26 February 2020. The Independent Review was established on 10 June 2020.

Source

Non-statutory inquiry announced

Initially non-statutory inquiry established.

Source

Chair appointed

Source

Converted to statutory inquiry

Inquiry converted to statutory public inquiry with power to compel witnesses.

First preliminary hearing

Source

Human impact hearings open

Human impact hearings commenced.

Phase 4 hearings

Source

Show all 15 milestones

Interim report on compensation

Sir Wyn Williams laid before Parliament his first interim report, on the compensation schemes.

Source

Phases 5 and 6 hearings

Source

Phase 7 hearings

Source

Final closing statements

Source

Hearings conclude

Closing statements ended the oral hearings, which ran across Phases 1 to 7 from February 2022.

Source

Final Report Expected

Chair Sir Wyn Williams expected to publish final report.

Source

Final report Volume 1 published

Volume 1 of the final report, on the human impact of the scandal and redress, was laid before Parliament (HC 1119); further volumes remain pending.

Source

Costs

Total reported cost: £83,739,770
Period Total Inquiry legal CP legal Source
Mar 2026 £8,979,208 £5,997,782 £236,637

Financial Report 1 April 2025 - 31 March 2026 (Financial Year 2025-26)

Source and qualifications

Accounting period: 1 Apr 2025 to 31 Mar 2026.

Financial Report 1 April 2025 - 31 March 2026 (Financial Year 2025-26)

Mar 2026 (cum.) £83,739,770 Not reported Not reported

Financial Report 1 April 2025 - 31 March 2026 (cumulative expenditure since Inquiry start, stated in Notes on financial figures)

Source and qualifications
Mar 2025 £25,990,264 £11,319,337 £5,204,208

Financial Report 1 April 2024 - 31 March 2025 (Financial Year 2024-25, updated/re-issued August 2026)

Source and qualifications
Mar 2024 £26,793,005 £12,180,655 £6,150,587

Financial Report 1 April 2023 - 31 March 2024 (Financial Year 2023-24, updated/re-issued August 2026)

Source and qualifications
Mar 2023 £18,491,383 £8,061,912 £3,905,857

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2022-23)

Source and qualifications

Accounting period: 1 Apr 2022 to 31 Mar 2023.

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2022-23)

Mar 2022 £3,087,287 £1,265,635 £645,569

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2021-22)

Source and qualifications

Accounting period: 1 Apr 2021 to 31 Mar 2022.

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2021-22)

Mar 2021 £360,345 £93,370 Not reported

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2020-21)

Source and qualifications

Accounting period: 1 Apr 2020 to 31 Mar 2021.

Financial Report 1 April 2020 - 31 March 2023 (Financial Year 2020-21)

1 Apr 2020 – 31 Mar 2026 · Financial Report 1 April 2025 - 31 March 2026 (cumulative expenditure since Inquiry start, stated in Notes on financial figures)

Financial Report 1 April 2025 - 31 March 2026 (cumulative expenditure since Inquiry start, stated in Notes on financial figures)

Source and qualifications
Detailed cost breakdown · to Mar 2026
Inquiry legal costs
£5,997,782
Core participant legal costs
£236,637
Panel remuneration
£515,102
Staff
£962,583
Other
£1,267,104

Parliamentary activity

35 mentions since Sep 2015
2 debates 26 questions

Post Office Horizon IT Inquiry

Written Question House of Commons Dr Al Pinkerton · Liberal Democrat

Asked: To ask the Secretary of State for Justice, what discussions he has had with the Post Office Horizon Inquiry on the publication of evidence.

Answered by Ministry of Justice: The Post Office Horizon IT Inquiry is a statutory inquiry under the Inquiries Act 2005 and Sir Wyn Williams and the Inquiry team have the right to receive full access to the information and witnesses they require in order to investigate what went wrong at the Post Office. The Inquiry is entirely independent. Within its published terms of reference, Sir …

Fujitsu: Contracts

Written Question House of Commons John Milne · Liberal Democrat

Asked: To ask the Minister for the Cabinet Office, whether his Department has assessed the suitability of Fujitsu Ltd to continue holding public sector contracts following its role in the Horizon IT system failures.

Answered by Cabinet Office: The impact that the Horizon scandal has had on postmasters and their families is horrendous. This Government is determined to hold those responsible to account. Fujitsu’s culpability needs to be assessed in light of the final report of Sir Wyn Williams’s Inquiry. Once it is published we will carefully consider whether to launch debarment investigations based on the findings in …

Fujitsu: Contracts

Written Question House of Commons John Milne · Liberal Democrat

Asked: To ask the Minister for the Cabinet Office, how Fujitsu Ltd’s central role in the Horizon IT failures is affecting its eligibility for future government contracts.

Answered by Cabinet Office: The impact that the Horizon scandal has had on postmasters and their families is horrendous. This Government is determined to hold those responsible to account. Fujitsu’s culpability needs to be assessed in light of the final report of Sir Wyn Williams’s Inquiry. Once it is published we will carefully consider whether to launch debarment investigations based on the findings in …

Procurement: Standards

Written Question House of Lords Baroness Ritchie of Downpatrick · Labour

Asked: To ask His Majesty's Government, further to the answer by Baroness Anderson of Stoke-on-Trent on 9 July (HL Deb col 1326), what is the timeline for completing assessments under the Procurement Act 2023 of suppliers who have engaged in poor performance or professional misconduct.

Answered by Cabinet Office: The timeline for completing assessments of suppliers who have engaged in poor performance or professional misconduct is dependent on the circumstances of each individual case. The impact of the Horizon scandal on postmasters and their families has been horrendous. The Government is determined to hold those responsible to account and will continue to seek to make rapid progress on compensation …

Fujitsu: Contracts

Written Question House of Commons Navendu Mishra · Labour

Asked: To ask the Minister for the Cabinet Office, whether he plans to review Government contracts with Fujitsu.

Answered by Cabinet Office: The impact of the Horizon scandal on postmasters and their families has been horrendous. The Government is determined to hold those responsible to account and will continue to seek to make rapid progress on compensation and redress. Fujitsu’s role in Horizon is one of the issues currently being reviewed by Sir Wyn Williams’s statutory inquiry. The Government are carefully considering …

Fujitsu: Contracts

Written Question House of Lords Baroness Ritchie of Downpatrick · Labour

Asked: To ask His Majesty's Government whether they have assessed Fujitsu for exclusion under the Procurement Act 2023.

Answered by Cabinet Office: The timeline for completing assessments of suppliers who have engaged in poor performance or professional misconduct is dependent on the circumstances of each individual case. The impact of the Horizon scandal on postmasters and their families has been horrendous. The Government is determined to hold those responsible to account and will continue to seek to make rapid progress on compensation …

Fujitsu: Contracts

Written Question House of Lords Baroness Ritchie of Downpatrick · Labour

Asked: To ask His Majesty's Government what is the total value of the 12 contracts issued to Fujitsu in the last 12 months; and how many of these were new contracts rather than transitional arrangements.

Answered by Cabinet Office: The timeline for completing assessments of suppliers who have engaged in poor performance or professional misconduct is dependent on the circumstances of each individual case. The impact of the Horizon scandal on postmasters and their families has been horrendous. The Government is determined to hold those responsible to account and will continue to seek to make rapid progress on compensation …

View all 35 mentions →

Key facts

Duration (ongoing): 5 years, 4 months Total reported cost: £83.7m Witnesses: 298 Hearing days: 226 Statements: 788