List of 2019–20 NBA season transactions

This is a list of transactions that have taken place during the 2019 NBA off-season and the 2019–20 NBA season.

Head coaching changes

 * Off-season
 * In-Season

General manager changes

 * Offseason
 * In-Season

Trades

 * † Two-way contract

Free agents
Starting this season, the NBA's free agency period began on June 30 at 6 p.m. EST instead of on July 1 at midnight like in prior seasons.

Players were allowed to sign new offers starting on July 6 at 12 p.m. ET, after the July moratorium ended.

Exceptions now allow the signing of two-way contracts, minimum-salary contracts no longer than two years, and offer sheets made to restricted free agents beginning on June 30.

* Player option ** Team option *** Early termination option **** Previously on a two-way contract ***** Converted two-way contract to full contract

Substitute players
Per recent NBA rules implemented as of the 2019–20 season, teams are permitted to substitute players for the resumption of the 2019–20 season, in Orlando "bubble".

Two-way contracts
Per recent NBA rules implemented as of the 2017–18 season, teams are permitted to have two two-way players on their roster at any given time, in addition to their 15-man regular season roster. A two-way player will provide services primarily to the team's G League affiliate, but can spend up to 45 days with the parent NBA team. Only players with four or fewer years of NBA experience are able to sign two-way contracts, which can be for either one season or two. Players entering training camp for a team have a chance to convert their training camp deal into a two-way contract if they prove themselves worthy enough for it. Teams also have the option to convert a two-way contract into a regular, minimum-salary NBA contract, at which point the player becomes a regular member of the parent NBA team. Two-way players are not eligible for NBA playoff rosters, so a team must convert any two-way players it wants to use in the playoffs, waiving another player in the process.

Waived

 * † Two-way contract

Training camp cuts
All players listed did not make the final roster.