Black-and-whites spent 12.5 million euros (360 million TL) to establish their new squad this season. While Beşiktaş paid 15 million euros as a testimonial to the 9 players it transferred, it only earned 2.5 million euros from Romain Saiss. The highest testimonial was paid to Rashica with 5 million 250 thousand euros. A total of 12.5 million euros was paid for Amartey, Onana, Rebic, Emrecan Bulut, Zaynutdinov, Chamberlain, Tayfur Bingöl and Bailly. Saiss, Redmond, Welinton, Atiba N’Koudou, Dele Alli, Muhayer, Maxim and Kerem Kalafat left.