Lehmann's 2016–17 Sheffield Shield season was highly successful, as he was an important part of three wins for South Australia and played in his second consecutive Sheffield Shield final. His best performances were an unbeaten century against Tasmania, which the Redbacks won by an innings, a hard-fought 47 not out to secure a tight two-wicket win against New South Wales and his participation in a 187-run partnership with Tom Cooper against Queensland. Lehmann is yet to represent the Australian national cricket team, and his father, Darren Lehmann, is the team's former coach. Lehmann resigned as the coach of the Australian cricket team following the ball-tampering scandal in South Africa in 2018. As a result, Darren Lehmann was part of Australia's selection panel. Darren Lehmann has abstained from any discussion on selecting Jake Lehmann for the national team.