The Liga de Expansión MX is a Mexican football league founded in 2020 as part of the
Mexican Football Federation's "Stabilization Project", which has the primary objective of rescuing the financially troubled teams from the
Ascenso MX and prevent the disappearance of a second-tier league in Mexico, for which there will be no promotion and relegation during the following six years. The project also attempts for
Liga MX and former
Ascenso MX teams to consolidate stable projects with solid basis, sports-wise and administrative-wise, financially wise and in infrastructure. • The
2024–25 Serie A runner–ups
Irapuato was certified for promotion to the Liga de Expansión MX. However, the team will participate as a guest team and not as a full member of the league. • On June 10, 2025,
Celaya F.C. sold the franchise to businessmen from Veracruz, who formed a team called Piratas de Veracruz. However, the new team had to be approved by the owner's assembly. On June 19 the transaction was blocked by a vote among the owners of the other Liga de Expansión clubs, so the franchise was put on hiatus for the 2025–26 season. • In May 2025,
Cimarrones de Sonora attempted to sell its franchise to
Club Jaiba Brava, so the Tampico–Madero team would become a full member of the league. However, the transaction was blocked by a vote among the owners of the other Liga de Expansión clubs. Following the vote, Cimarrones de Sonora was granted an additional year to maintain its franchise on hiatus, while Jaiba Brava will continue to participate in the league as a guest team. •
Dorados de Sinaloa will continue playing their home games at
Estadio Caliente in
Tijuana due to security issues in
Culiacán. ==Stadiums and locations==