The Argentine has been a huge success since arriving in London from Southampton two years ago. He steered Spurs to fifth in the Premier League and the Capital One Cup final in his initial season before masterminding their title challenge in the current campaign.
Success has led to speculation around his job with Manchester United and PSG touted as potential destinations. But after opening talks with chairman Daniel Levy several months ago, the 44 year-old is ready to sign a deal which would keep him at the club until 2021.
"We create a good atmosphere on the training ground and I think we can achieve big things in the future. I believe in this project and this club. I want to stay here," Pochettino said.
"We have not signed yet but we have reached the verbal agreement to stay here for the next five years. When will we sign? Maybe tomorrow [Saturday] or on Tuesday, it depends on my lawyer.
"It is a good moment to tell you, for all to know that my future is here. I am very happy. It is for many reasons I stay."
Spurs are due to move into their new 61,000-seater stadium in 2018-19 and Pochettino hailed a bright future for the club.
"Tottenham have unbelievable potential. We created after two years here a great group of players," Pochettino said.
"We have a very strong squad, young, with potential to be a top team. The staff and the supporters are unbelievable, there is massive potential, why not stay here?"
Pochettino took over with Spurs in turmoil after the 2013/14 season, which saw them sack Andre Villas-Boas in December 2014 before Tim Sherwood took over in a tumultuous short spell.