Society

Post Office Horizon Scandal Timeline: 1996 to 2026

Faulty Horizon accounting data was used to demand money from, and prosecute, UK postmasters. The High Court found in 2019 that Horizon contained bugs, errors a…

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Redress

Money paid, claims still open

GOV.UK reports about 1,731 million pounds paid across the Horizon schemes, with 87% of claims settled. Capture closes 31 March 2027 and Convictions Redress 31 July 2027.

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The inquiry

Five volumes still to come

Volume 1 came out on 8 July 2025. The chair says the rest will be five volumes and that he is still some months from publication.

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The law

Parliament quashes convictions

Sunak announced the plan on 10 January 2024. The Offences Act received Royal Assent on 24 May, and Scotland followed on 13 June.

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The appeal

39 convictions quashed

It found the Post Office failures so egregious that prosecuting the cases was an affront to the conscience of the court.

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The rulings

Bugs, errors and defects

The postmasters won on contracts in March, the case settled for 57.75 million pounds on 11 December, and the 16 December judgment found Horizon contained bugs, errors an…

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The campaign

Journalists and postmasters connect

Computer Weekly reported in 2009, a campaign group formed, and Second Sight found bugs causing false shortfalls at 76 branches in 2013.

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The shortfalls

Postmasters face them alone

Postmasters reported unexplained shortfalls. Contracts could make them liable, and some were prosecuted.

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The system

From benefits project to Horizon

ICL Pathway won a 1996 tender. When the benefits side was dropped in 1999, the branch system became Horizon.

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