Fury is unbeaten in his 10 bouts to date, though his win over KSI was not licensed by the British Boxing Board of Control.
Liverpool’s Till, 31, had a record of 18 wins, five defeats and one draw in 24 fights during his Mixed Martial Arts (MMA) career.
He was released by the UFC in March 2023 and beat Mohammad Mutie by technical knockout on his boxing debut, with the fight marred by a mass brawl after the fight was waved off.
“Till had a good UFC career, but he is stepping into the boxing ring now, against a proper pro, and he will quickly realise that he is out of his depth, and this is not the game for him,” added Fury.
“I plan on dealing with Till in conclusive fashion and then chasing even bigger fights in 2025.”
Till said: “January 18 is my time, my night.”