List of 2020–21 NBL season transactions

All-NBL Second Team (2020) Free agency negotiations were initially delayed until at least 1 May 2020, after the NBL and the Australian Basketball Players' Association postponed the original start date of 30 March 2020 due to the COVID-19 pandemic.

[63][64] The NBL Next Stars Program is designed to provide young elite overseas players, mainly Americans, with a professional option immediately out of secondary school.

On 18 April 2020, due to the COVID-19 pandemic the NBL signed an agreement with the Australian Basketball Players' Association which implemented salary cuts designed to protect the league during the pandemic.

However, players were able to opt back into their previous contracts or re-sign with their previous club but couldn't sign with a new NBL club until their contract expired.

Note: Flags indicate national team eligibility at FIBA-sanctioned events.