 McAllister made his first appearance of 2016–17 for Sutton on 4 October in a 3–1 defeat away to Dover Athletic and scored his first goal in the following match, a 4–1 victory at home to former club Woking, in which he scored a header to make the score 4–0.He made 16 appearances and scored two goals for Sutton in 2016–17.McAllister re-signed for Eastleigh on 17 February 2017 on a contract until the end of 2016–17.