Mark Carney announced that Canada will hold three federal by‑elections on August 31, 2026 to fill vacant seats in the House of Commons. The elections will take place simultaneously in ridings located in British Columbia, Ontario and Quebec.

The three vacancies arose from different career moves. One member of Parliament stepped down from political life, another accepted an appointment as an ambassador, and a third was named to the Senate. Each departure created an opening that must be filled through the by‑election process.

By‑elections are the mechanism by which voters in a specific riding choose a new representative when a seat becomes vacant between general elections. In this case, three separate constituencies will each conduct their own vote on the same day, allowing Canadians in the three provinces to select their new MPs at the same time.

Holding the contests on a single date streamlines administration and provides a clear timeline for parties and candidates. It also ensures that the affected ridings will have representation in the House of Commons without prolonged gaps.

The upcoming ballots will determine who will occupy the three seats until the next general election. Candidates from the major parties, as well as any independents who qualify, will campaign in the three ridings during the weeks leading up to the vote.

Carney’s announcement aligns with the statutory requirement to call a by‑election within a set period after a vacancy occurs. By scheduling all three for August 31, the government meets that deadline while giving each electorate a coordinated opportunity to elect a successor.

The three by‑elections will therefore restore full representation for the affected constituencies and complete the composition of the House of Commons for the remainder of the parliamentary term.