Tite, 57, led the Selecao to the quarter-finals at Russia 2018 where they lost against Belgium.
The former Corinthians manager, who took control of the national team in 2016, has done enough to earn a new deal that should take him to Qatar 2022.
“I understand the CBF has given us the conditions to build an environment of union and extreme professionalism and we will continue,” he told the Brazilian Football Confederation’s (CBF) website.
“It is a great challenge and we are happy to face it, with the focus on the next games and competitions.”
The CBF has also extended the contract of former Arsenal midfielder Edu, who is Brazil’s general manager.