White Sox Offseason: Important Dates and Deadlines Fans Need to Know

With the 2026 World Series concluding earlier this week, the clock is now ticking on the MLB offseason.

We've already seen a minor trade go down, players declare free agency, and teams make decisions on some of their contract options.

With this year's free agency expected to move unusually quickly due to the impending lockout at the beginning of December and the need to negotiate a new collective bargaining agreement, it's important for Chicago White Sox fans to stay aware of this offseason's key dates.

Here's a look at some of the upcoming dates and deadlines that will have a significant impact on the offseason and the White Sox's plans.

We've already seen this milestone pass. Following the conclusion of the World Series, players with six or more years of MLB service time and expiring contracts officially became free agents.

Their previous teams, however, retain exclusive negotiating rights for five days before free agency opens to all 30 teams. For the White Sox, that includes right-handed pitchers Erick Fedde and Trevor Richards, left-handed pitcher Sean Newcomb, outfielders Randal Grichuk and Tommy Pham, and catcher Jake Rogers.

Teams were also required to begin clearing space on their 40-man rosters for players returning from the 60-day injured list. The White Sox reinstated six players, including Brooks Baldwin, Prelander Berroa, Ky Bush, Jordan Leasure, Tanner Murray and Mike Vasil.

With those moves complete, Chicago's 40-man roster currently sits at exactly 40 players, meaning any additional acquisitions will require a corresponding roster move.

Trades involving players on 40-man rosters also resumed following the World Series, officially reopening another avenue for the White Sox to address their offseason needs.

Five days after the conclusion of the World Series, the exclusive negotiating window closes, and free agents become eligible to sign contracts with any MLB organization.

Things are expected to move quickly leading up to the end of November, with a potential lockout looming. We could see an unusually active stretch of free agency right out of the gate, as teams look to complete major acquisitions before the current collective bargaining agreement expires.

November 2 also marks the deadline for most contract option decisions. Players with player options must decide whether to exercise those options or enter free agency, while clubs must determine which team options they'll pick up or decline.

These decisions could have a significant impact on the free agent market, with several notable players potentially becoming available depending on whether their options are exercised.

Leading up to this date, we could see the White Sox make some critical decisions regarding their 40-man roster. With the roster currently at full capacity, Chicago will need to clear space before adding any new players through free agency or trades involving players who require a 40-man roster spot.

November 2 is a critical date for several other reasons, including the deadline for teams to issue qualifying offers and the announcement of the BBWAA award finalists. It also comes one day after the Gold Glove Award winners are announced on November 1.

Expect plenty of activity between November 10–12, when MLB's annual General Managers Meetings take place in Las Vegas. With the Winter Meetings potentially impacted by a lockout, trade discussions and free agent negotiations could accelerate significantly during that stretch.

For the White Sox, it could be an important opportunity for Chris Getz to explore potential trades and lay the groundwork for major acquisitions before the end of November.

By November 17, players who received a one-year, $23.15 million qualifying offer must decide whether to accept or reject it. Players who reject their qualifying offers remain free agents, although their former teams could receive draft-pick compensation if they sign elsewhere.

November 17 is also the deadline for teams to add Rule 5 Draft-eligible prospects to their 40-man rosters to protect them from being selected by another organization.

For the White Sox, this could mean making additional roster moves to protect some of their young talent, especially with Chicago's 40-man roster already at full capacity.

The offseason is expected to move fast and furious, and all of these important dates and deadlines are going to sneak up on fans. Once free agency opens on November 2, it could be a mad dash for teams across Major League Baseball to fill their roster holes before the current collective bargaining agreement expires at the beginning of December.

The offseason is about to be in full swing, and the White Sox need to be at the center of it all.