Jackson joined Bayern Munich on loan from Chelsea FC last summer, and the club will not be obliged to buy him outright, as he will not meet the pre-agreed appearance threshold.
In 29 appearances, the 24-year-old, who mostly served as backup to star striker Harry Kane, has scored ten goals for Bayern. Jackson remains under contract at Chelsea until 2033, but his improving form may prompt a rethink.
Meanwhile, Leon Goretzka and Raphael Guerreiro will depart Munich when their contracts expire.