He attended St John's College, Hamilton before gaining an LLB and a BCA from Victoria University of Wellington.

[1] Bennett owns two dairy farms near Te Awamutu, is partner in a third, and has also worked as an accountant for KPMG, in Auckland.

[2][3] In the 2005 election, Bennett stood as the National Party's candidate for the Hamilton East seat.

[13] He introduced the Government's Racing Amendment Bill in July 2017 but it was abandoned after National lost the 2017 election.

Bennett held various spokesperson roles for the party, including food safety and racing under the leadership of Bill English, corrections and land information under Simon Bridges, agriculture under Todd Muller and Judith Collins, and economic and regional development under Christopher Luxon.

[26][27] On 26 July 2022 Bennett announced his intention to step down from Parliament at the 2023 election in order to spend more time with his fiancee Nicky Preston and their first child.