On 22 January 2018, Targett joined Championship club Fulham on loan for the remainder of the season.[13] He scored his first goal in a 1–1 draw with Bolton Wanderers on 10 February.[14] On 26 May, he won promotion to the Premier League when Fulham beat Aston Villa 1–0 in the Championship Play-off Final, playing the full 90 minutes.[15]