The former New England Patriots quarterback announced the signing on Instagram Friday:
The signal-caller signed a two-year deal that contains $50 million guaranteed, a source told ESPN's Adam Schefter.
The pact also includes another $9 million in incentives over the two years and clauses preventing a trade or the use of the franchise tag, added Schefter.
The contract will allow Brady to suit up through his age 43 and 44 seasons and close in on his publically stated goal of playing until he's 45 years old.
"Tom is the most successful quarterback in the history of league, but what makes him so special is his ability to make those around him better," said Bucs head coach Bruce Arians in a statement, according to Mark Daniels of the Providence Journal. "I have had the privilege to work with some of the best passers in our game, and the characteristics they all possessed were the ability to lead and get the best out of their teammates.
"Tom is no different. He is a proven winner who will provide the leadership, accountability, and work ethic necessary to lead us to our goal of winning another championship."
Brady joins the Bucs after two decades, six Super Bowl titles, three MVP awards, and 14 Pro Bowl appearances in New England.
On Tuesday, the legendary QB announced he would be leaving the Patriots, and the Bucs beat out the Los Angeles Chargers to secure his signature.
Meanwhile, the Patriots could search for Brady's successor either through the draft or free agency, as 2019 fourth-round pick Jarrett Stidham and journeyman Cody Kessler are the only QBs on their roster.