The 23-year-old is under contact at White Hart Lane until 2020, having penned fresh terms in February 2015, but reportedly is now looking to double his salary of 60,000 pounds ($74,000) a week.
The report claims Kane wants to earn similar to England teammates Jamie Vardy and Daniel Sturridge, who receive weekly salaries of £120,000 and £130,000, respectively.
But Tottenham chairman Daniel Levy is reluctant to break the club's strict wage structure and sanction a six-figure salary with discussions now being delayed until the end of the season.
Jose Mourinho is a fan of Kane and sees him as a long-term successor to Zlatan Ibrahimovic, who is currently set to leave Old Trafford in the summer but has the option to extend for an additional year.
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