Due to the 2020 coronavirus outbreak in Switzerland there was no defending champion as the previous season's playoffs were cancelled.
Due to the 2019–20 league qualification series also being cancelled, the participating teams remained the same as the previous season.
The series were shortened to allow enough time for the national team to prepare for the 2021 IIHF World Championship.
EV Zug swept Genève-Servette HC 3-0 in the final to win its first NL title since 1998.
The following goaltenders led the league in goals against average, provided that they have played at least 40% of their team's minutes, at the conclusion of the regular season.