How Is the Prime Minister of Canada Chosen?

# How Is the Prime Minister of Canada Chosen?

The Prime Minister is Canada's head of government — the most powerful elected official in the country. But unlike the President of the United States, Canadians do not vote for the Prime Minister directly. This is one of the most commonly misunderstood facts on the citizenship test. Here is exactly how the PM is chosen, step by step.

The Prime Minister of Canada is the leader of the political party that wins the most seats in the House of Commons at a federal election. The Governor General then invites that leader to form a government and swears them in as Prime Minister.

So the process has two parts:

1. The party picks its leader (long before the election).
2. The leader becomes PM only if the party wins the most seats.

Every major political party — Liberal, Conservative, NDP, Bloc Québécois, Green — chooses its own leader. This happens at a leadership convention or vote, where dues-paying party members rank or vote between candidates.

Once a leader is chosen, they lead the party in the next federal election. Most party leaders are also sitting MPs, but if not, they often run for a seat at the same time.

At a federal election, Canadians cast a single ballot in their riding (electoral district). They vote for the MP candidate they prefer. The candidate with the most votes wins the riding. There are 338 ridings — see [How Many MPs Are in the House of Commons?](/blog/how-many-mps-canada-house-of-commons).

After all 338 ridings report results, the parties' total seat counts are added up. The party with the most seats wins.

After the election, the Governor General (the King's representative in Canada) acts on convention:

• If the winning party has more than 170 seats (a majority), the Governor General invites its leader to form a majority government.
• If no party reaches 170 seats (a minority result), the Governor General typically invites the leader of the party with the most seats — but they need other parties' support to govern.
• If the previous government wishes to stay in office and test the confidence of the new House (rare), they may. But by convention, when one party clearly wins more seats than all others, the loser concedes.

The Governor General then swears in the Prime Minister and the Cabinet.

In Canada's parliamentary system, the PM must hold the confidence of the House of Commons. If a majority of MPs vote no-confidence in the government (often on the budget or a key bill), the PM has two choices:

1. Resign — the Governor General may invite another party leader to form government, or
2. Ask for an election — the Governor General usually agrees and a new election is called.

• Justin Trudeau became PM after the 2015 election when the Liberal Party won 184 seats — a majority.
• Mark Carney became PM in 2025 after winning the Liberal Party leadership and then leading the Liberals to win the most seats in the federal election.

By convention, the PM must be a Member of Parliament — that is, hold a seat in the House of Commons. If a new PM is not already an MP, they typically run in a by-election within months to take a seat. The PM cannot govern from outside Parliament.

Common citizenship-test questions:

• How is the Prime Minister chosen? *(Leader of the party with the most seats in the House of Commons)*
• Who is Canada's current Prime Minister? *(Mark Carney, as of 2025)*
• Are Canadians voting for the PM directly? *(No — they vote for an MP in their riding)*

For more on the Cabinet, see [What Is the Cabinet in Canada?](/blog/cabinet-canada-what-is-it).

Try our [free practice test](/practice-test) — it asks how the Prime Minister is chosen in the same format as test day.