Lincoln City

On the 14 July 2020, Montsma joined English League One club Lincoln City on a three year contract, on a free transfer.^[6][7] He made his Lincoln City debut and scored his first Lincoln goal in the EFL Cup on 5 September 2020 against Crewe Alexandra.^[8] He would continue his goal scoring run, scoring in the second and third round of the EFL Cup against Bradford City and Liverpool.^[9][10] And his run of scoring would continue in the next game against Charlton Athletic, scoring his first goal in League One.^[11] On 8 January 2022, Lewis Montsma was injured against Oxford United, which was later confirmed as an ACL injury which would rule him out of action for up to 9 months.^[12] Following his surgery on his ACL, he would sign a new contract until the summer of 2024.^[13] Just over a year from his injury, Montsma returned to the squad on 28 January 2023 against Cambridge United.^[14] He would pick up a similar knee injury a few months later against Fleetwood Town which would see him miss the remainder of the season.^[15] It was later confirmed that he had ruptured his ACL as well as other knee damage and he would have a further 12 months of rehabilitation.^[16] Despite not playing during the 2023–24 season, the club confirmed they were negotiating a new contract with him.^[17]