 He finished the season with eight goals from 30 appearances, as Sutton won the National League South title and therefore promotion into the National League, but missed the latter part of the season due to injury.McAllister was loaned to National League South club Eastbourne Borough in September 2016 on a one-month loan.He debuted in a 4–0 victory at home to Oxford City on 3 September 2016 and completed the loan spell with one goal from five appearances.