Jayson Tatum contract details: Celtics star forward set to sign largest deal in NBA history

Jayson Tatum is having an incredible year.

Two weeks after doing his part to lead the Celtics to the 2024 NBA championship, the 26-year-old is set to sign a record-breaking five-year supermax contract extension to remain with the franchise long-term, TNT Sports' Chris Haynes reported Monday.

While the move was expected, the news of Tatum's extension officially ensures Boston's championship core of Tatum, Finals MVP Jaylen Brown, Jrue Holiday, Kristaps Porzingis and Derrick White will remain with the franchise through at least the 2025-26 season.

Here is everything to know about Tatum's historic deal.

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Jayson Tatum contract details

Tatum's contract is for five years and worth up to $314 million, per The Athletic's Shams Charania . That makes it the largest contract in NBA history, surpassing the extension signed by Brown last year.

Tatum is eligible for a supermax deal after earning All-NBA First Team honors in each of the last three seasons.

The deal will begin in the 2025-26 season with an estimated value of $54.1 million and keeps Tatum in Celtic green through at least the 2028-29 season, with a player option for the 2029-30 campaign.

Here are the estimated annual figures of Tatum's deal. All figures via Spotrac .

Jayson Tatum stats 2023-24

Tatum led Boston is scoring and rebounding during the 2023-24 regular season. His 4.9 assists per game ranked second behind White, who had a slight edge with 5.2 assists per game.

For his efforts, Tatum earned an All-Star selection in addition to the All-NBA nod.

• 74 games
• 35.7 minutes per game
• 26.9 points per game
• 8.1 rebounds per game
• 4.9 assists per game
• 1.0 steals per game
• 0.6 blocks per game
• 2.5 turnovers per game
• 47.1 percent field goal shooting
• 37.6 percent 3-point shooting
• 83.3 percent free throw shooting