20 September 2026

Major League Soccer is weighing significant changes to its roster rules, potentially including a midseason boost to the salary cap, as club transfer spending hits record highs. At its meeting in Charlotte, league owners are expected to discuss a plan that would give teams more flexibility to absorb higher transfer fees without breaking roster constraints.

The potential adjustments come as MLS clubs already have some leeway to manage midseason expenses. The league’s 2026 roster rules allow a specific midseason Designated Player Salary Budget Charge of $683,750 when a Designated Player joins after the opening of the Secondary Transfer Window, which runs from July 13 to September 2. MLS's 2026 Club Salary Budget is $6,425,000, and the Maximum Salary Budget Charge is $803,125.

However, the scope of the proposed changes would go further than the existing midseason DP rule. According to a report from The Athletic, MLS owners are expected to hear a presentation in Charlotte about moving toward a more open structure, with many current spending restrictions removed while retaining a Designated Player carveout. The plan, if enacted, would be a major shift for a league long known for its strict roster and spending regulations.

Reported changes already implemented by MLS suggest a broader push toward loosening those controls. The league has removed limits on cash-for-player trades and intraleague loans, eliminated age restrictions on loans, and adjusted domestic player designation rules. MLS has also added new flexibility for traded international roster slots, plus new provisions for midseason Designated Players and expanded eligibility for Supplemental Roster Slot 31.

The urgency for change is clear in the numbers. MLS set a record $370 million in transfers in 2026, up from $243 million the year before. As clubs look to absorb that increased spending, current roster rules may feel outdated.

The Athletic’s report and MLS’s published roster rules together indicate that the league is already using a midseason DP budget charge framework within the 2026 roster system. However, sources did not confirm that a full salary-cap increase is in the works. While the existing midseason DP charge provides some relief to teams, a broader cap bump would be a major adjustment to the league’s economic model.

If approved, the proposed changes would mark the latest evolution of a league slowly shifting toward a more flexible player-acquisition structure. MLS has been proceeding toward giving teams more ways to build their rosters, even as the league still seeks to manage spending on top-tier talent. The owners' discussion in Charlotte will determine whether the recent proposals become formal rule changes. With transfer spending at record levels, any alterations to the roster rules will likely shape the market landscape in the coming seasons.