The top-placed and fourth-placed teams will play the first semi-final followed by the second and third-placed teams contesting the other semi-final. All teams will be playing every other team twice before making it to the semi-final stage. The Caribbean Premier League will have six teams namely Trinbago Knight Riders, Guyana Amazon Warriors, Barbados Royals, St Kitts and Nevis Patriots, Jamaica Tallawahs and Saint Lucia Kings play a double round-robin league stage. The Trinbago Knight Riders (earlier known as Trinidad and Tobago Red Steel) have now won the title four times while the Jamaica Tallawahs and Barbados Royals (earlier known as Barbados Tridents) have won it twice each. In the previous 8 seasons, there have been 3 different winners. A total of 7 teams have participated in the tournament so far with one of them now defunct. The CPL is played in the West Indies annually since 2013.
The Trinbago Knight Riders are the defending champions. The tournament is scheduled to be held from 28 August to 15 September 2021, with all the matches taking place in Saint Kitts and Nevis. The 2021 Caribbean Premier League ( CPLT20 ) is scheduled to be the ninth season of the Caribbean Premier League, the domestic Twenty20 cricket league played in the West Indies.