Luxton was raised in the Tauranga suburb of Papamoa and attended Mount Maunganui College.

Originally at 16 on the ACT party list, he was bumped up to 15 after Pakuranga candidate Stephen Berry withdrew his nomination.

[6][7] Following National MP Simon Bridges' announcement in March 2022 that he would resign, Luxton stated his intention to contest the resulting by-election.

[12][13] After the election, Luxton was appointed the ACT spokesperson for conservation, housing, building and construction, infrastructure, local government, and transport.

[14] On 11 April 2024, Luxton's private member's bill to remove restrictions on selling alcohol over Easter was selected for debate.