According to David Ornstein, it is also the most lucrative deal in Bayern history.
Kane, who scored 73 goals for club and country last season, has been rewarded for his exploits with the Bundesliga champions and has now committed his future to the club for the next few years.
The England captain became the first player from his nation to win the Ballon d'Or since Michael Owen 25 years ago, during a season in which he won the Bundesliga for the second time and the German Cup.