Spurs are one of a number of top European clubs reportedly chasing the France Under-21 international.
Spurs are expected to add to their forward line this summer, as they prepare for a likely Champions League campaign.
And according to his agent, Haller, who's scored 21 goals in all competitions this season, is destined to leave at the end of the current campaign.
Loic Gustan was quoted as saying by The Chronicle: "He will leave in the summer, that’s for sure.
"Haller has mapped out a path for himself and he won’t just join any club.
"He wants to join a stable club and a club that has the structure to play European football."
Gustan adds that talks with Ajax are due to commence, though Voetbal questions whether the Dutch giants could meet Utrecht's €8-10million asking price.
Inter Milan, Monaco, Schalke 04, Bayer Leverkusen and Borussia Monchengladbach are also listed as suitors, while Sunderland, Aston Villa and Norwich were all previously keen, with the latter rebuffed by the France Under-21 star in January.
6ft 2 Haller would bring height to Spurs' attack, which consists of just Harry Kane, Son Heung-min and the injured Clinton N'Jie at present.
The former Auxerre prospect may be viewed as an alternative to Fulham's Moussa Dembele, whose January move to White Hart Lane fell through, according to The Guardian.