Confidence and supply

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In parliamentary democracies based on the Westminster system, confidence and supply is an arrangement in which a party or independent members of a parliament agree to support the government in motions of confidence and appropriation votes. Parties and independent members normally retain the right to otherwise vote in favour of their own policies or on conscience on legislative bills.^[1][2][3]

A coalition government is a more formal arrangement than a confidence-and-supply agreement, in that members from junior parties (i.e., parties other than the largest) gain positions in the cabinet and ministerial roles, and may be expected to hold the government whip on passing legislation.