Liz Truss was prime minister of the United Kingdom from 6 September 2022 to 25 October 2022, serving a total of 49 days, the shortest premiership in UK history.

Key dates

  • Started as prime minister: 6 September 2022, after being invited by Queen Elizabeth II to form a government, succeeding Boris Johnson.
  • Announced resignation: 20 October 2022, amid intense political and market turmoil over her government’s economic plans.
  • Officially left office: 25 October 2022, when Rishi Sunak was appointed as her successor.

Quick context

  • Liz Truss became the UK’s 56th prime minister and third woman to hold the office.
  • Her term is widely noted for its economic instability following a “mini-budget” that triggered market turbulence and ultimately led to her rapid resignation.

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