The 2027 MLB season is facing significant uncertainty because the current Collective Bargaining Agreement between MLB owners and the MLB Players Association expires on December 1. The expectation is that the 2027 Major League Baseball season will begin around Memorial Day weekend next year, with USA Today’s Bob Nightingale revealing that a range of executives believe the season is heading to an inevitable lockout settlement.

If 60 or more games are cancelled in the upcoming season, players will miss as many as four paychecks and National TV contracts will be extended through 2029. A similar situation took place in 2021, which resulted in the longest lockout in league history at 99 days, but the two sides eventually agreed to a deal that preserved a full 162-game season.

The primary dispute centers on ownership's push for a hard salary cap, a system MLB has not had and one the union has consistently opposed. Owners have reportedly proposed a payroll cap of $245.3 million and a payroll floor of $171.2 million, arguing that competitive balance issues have widened amid spending disparities across the league.

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The Los Angeles Dodgers, for example, reportedly carried a $345 million payroll and paid an additional $169 million in luxury tax penalties, with their tax bill alone exceeding the entire payroll of some lower-spending clubs. The MLBPA has countered with proposals including a ‘competitive integrity tax’ aimed at encouraging spending among low-payroll teams, while also seeking expanded free agency rights, broader salary arbitration eligibility, higher minimum salaries, and an increased luxury-tax threshold of $300 million.

Other reported sticking points include service-time rules, the international draft, television revenue distribution, and broader revenue-sharing structures. A lockout would be initiated by ownership, not players, and would prevent players from accessing team facilities or participating in official club activities until a new agreement is signed.

The 2027 regular season is tentatively scheduled to begin on March 24, 2027, although some published schedules list Opening Day games beginning March 25, and that timeline remains dependent on a new deal being agreed. Spring training, which normally begins in late January and February, would likely be the first baseball activity affected if negotiations remain unresolved.