The Truss ministry began on 6 September 2022 when Liz Truss was invited by Queen Elizabeth II—two days before the monarch's death—to succeed Boris Johnson as prime minister of the United Kingdom.

Johnson had resigned as leader of the Conservative Party the previous day after Truss was elected as his successor.

[1] The Truss ministry was formed from the 2019 Parliament of the United Kingdom, as a Conservative majority government.

[2] On 20 October 2022, amid growing disapproval of her leadership from within the Conservative Party, Truss announced her resignation, making her tenure the shortest in the history of the United Kingdom.

The cabinet was dissolved following the appointment of Rishi Sunak as prime minister on 25 October.