On 29 January 2020, Utoikamanu signed a three-year deal with the Wests Tigers from 2021 worth $800,000 which was significantly higher than Parramatta's offer of $70,000 a season.

[7] In round 9, he made his return to the side against Manly but was sent to the sin bin for a professional foul during the club's 36-22 loss at Brookvale Oval.

[8] Utoikamanu played a total of nine games for the Wests Tigers club in the 2022 NRL season as they finished bottom of the table and claimed the Wooden Spoon for the first time.

[9] On 22 May, Utoikamanu was selected by New South Wales as part of their extended squad ahead of game one in the 2023 State of Origin series.

[11] Utoikamanu played a total of 21 games for the Wests Tigers in the 2023 NRL season as the club finished with the Wooden Spoon for a second straight year.