The 17-year old has penned a two-year deal with the Coasters with the option of a third year.
Tasdemir burst onto the scene last season, netting a sensational hat-trick on his debut as a 16-year-old in the 6-2 Lancashire Cup victory over AFC Darwen.
A product of the Blackburn Rovers academy, Tasdemir further enhanced his rapidly-growing reputation with his first league goal for Fylde in the 2-2 draw against Bromley at the weekend.
The youngster made his league bow on the final day of last season against Worcester City as the Coasters lifted the National League North title and was rewarded with a squad number by manager Dave Challinor over the summer.
Challinor believes there is plenty to come from his young star: "Serhat has a very bright future ahead of him. He is still only very young and he must take on board what we tell him but if he does that and keeps working hard then he has got a great chance.
“It was great to see him get his goal at the weekend. He really helped to change the game. He has been training well and is already an integral part of the squad”.
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