Due to the ongoing COVID-19 pandemic, the season was indefinitely suspended on 16 March.[6] Play was resumed on 19 August. [7]São Caetano and São Bento, two sides relegated from the first division in the previous season, won promotion back after one year. São Caetano were crowned champions on 12 October, after defeating the Sorocaba team 4–3 on penalties in the final, following a 3–3 aggregate score. São Caetano had already won the trophy in their last appearance in the second level, in 2017.
Team changes
The following teams have changed division since the 2019 season.
^Atibaia plays at Americana, 90 kilometres away from Atibaia, as their home stadium Estádio Salvador Russani does not meet the minimum criteria for hosting Série A2 matches
Updated to match(es) played on 29 October 2020. Source: Paulista Série A2(in Portuguese), Soccerway Rules for classification: 1st points; 2nd wins; 3rd goal difference; 4th goals scored; 5th least yellow cards received; 6th least red cards received; 7th draw. (C) Champions; (P) Promoted; (R) Relegated