Vertonghen has been in discussions with Spurs for some time but the centre-back has been unable to finalise his move to White Hart Lane due to a contractual dispute with his current employers.
It is understood that the Belgian, who is in the final year of his contract, believes he is entitled to a cut of the reported £9million transfer fee, but Ajax disagree.
The two parties will meet today with the aim of resolving the dispute so 25-year-old Vertonghen can complete his move to the north London club.
"We have a meeting with Ajax at the end of this morning to come to a solution," read a statement from Nakhli Mondial, who represent Vertonghen, in today's De Telegraaf.
"There is some movement and we have the intention to come to an agreement."
If the transfer is completed Vertonghen will become Andre Villas-Boas' second signing since he took over earlier this week.
The Portuguese has already snapped up Gylfi Sigurdsson from Hoffenheim and he is determined to add more youthful players to the ranks.
Brazil midfielder Oscar, 20, confirmed today that Tottenham have contacted him about a potential transfer from his current club Internacional.
"They (Tottenham) contacted my agent," Oscar told Brazilian website Lancenet.
"I do not know if there was an official proposal, you'll have to ask my manager or the president.
"I don't know what might happen, I'm not thinking of it right now. "Not only Tottenham [asked about me], but I'm not sure if there was an official offer. Offers always come for me, [team-mate Leandro] Damiao and whoever is showing up."