The Russian Figure Skating Federation announced the partnership Tuesday (27 April) in a press release.
The duo is set to train in Moscow.
Tarasova and Morozov won their third national title behind an emotional effort in December in Russia. They finished fourth at the world championships last month, behind two other teams representing the Russian skating federation: Anastasia Mishina and Aleksandr Galliamov, who were surprise gold medallists; and Aleksandra Boikova and Dmitrii Kozlovskii, who won the bronze.
Three teams will represent the nation at the coming Olympic Games Beijing 2022, though the race for those spots in the pairs discipline will be competitive.
Tarasova/Morozov were fourth at PyeongChang 2018.