In Munster's 2017–18 Pro14 match against Leinster on 7 October 2017, Stander earned his 100th cap for the province. He scored Munster's only try in their 25–16 away win against Leicester Tigers in the 2017–18 European Rugby Champions Cup on 17 December 2017. Stander signed a new three-year contract with the IRFU in December 2017, a deal that will see him remain with Munster until at least June 2021. Stander captained Munster in their 39–22 away win against Southern Kings on 7 April 2018, scoring a try in the match that was played in Outeniqua Park in his hometown of George.