The Daily Mail claims that the Togolese striker is seeking more than the £100,000-per-week that Spurs are prepared to offer to bring him to White Hart Lane long-term.
Adebayor was reportedly offered a string of performance-related bonuses and a £4m signing-on fee in addition to the basic salary.
However, the player is earning £170,000 per week on his Manchester City contract, which has two years remaining on it.
Spurs chairman Daniel Levy may pursue other options in the club's search for a forward. Marseille's Loic Remy and Villareal's Giuseppe Rossi are among those linked with the Premier League outfit.
Adebayor joined Spurs on loan from City last year, scoring 11 goals in 25 appearances.