*Club domestic league appearances and goals, correct as of 20:01, 31 August 2024 (UTC) ‡ National team caps and goals, correct as of 12:18, 12 August 2019 (UTC)
Tasdemir signed for AFC Fylde at the age of 15, following his release from Blackburn Rovers. He made his first-team debut at just 16 in the Lancashire FA Challenge Trophy vs A.F.C. Darwen, scoring a first-half hat trick.[3] Following this, Tasdemir made his National League debut against Bromley, in September 2017, aged 17. He scored just 14 minutes after coming off of the bench.[4]
On 11 May 2021 he was made available for transfer by Peterborough.[11] Tasdemir joined Barnet on a season-long loan in July 2021.[12] He scored three times in 23 appearances for the Bees. Tasdemir was released by Posh at the end of the 2021–22 season.[13]