Reform UK leader Nigel Farage resigned as MP for Clacton on Monday and announced he will fight a byelection in the seat, as a second parliamentary inquiry into financial gifts received by him opened.

The resignation forces a contest in Clacton, the Essex constituency Farage captured for Reform at the July 2024 general election, giving the party its first Commons foothold.

The new investigation — the second Farage has faced from parliamentary authorities — centres on financial gifts, the Wail confirmed. Details of the gifts' value, origin, and timing have not been fully disclosed.

Farage told reporters he was seeking a fresh mandate from Clacton voters, a framing that places the byelection as a referendum on both his leadership and the scrutiny surrounding him.

Reform holds no other Commons seats, making Clacton the party's sole parliamentary presence. A loss would leave the party without representation at Westminster.

The parliamentary standards process is expected to continue in parallel with the byelection campaign. A date for the vote has not yet been set by the Speaker's office.