Tasaka began his career with hometown side Sanfrecce Hiroshima. After graduating high school Tasaka received an offer from first team, but he decided to continue his study and play football at the Aoyama Gakuin University. Upon graduating university Tasaka joined Kawasaki Frontale in 2007 and inherited jersey number 6.
He made his J-League debut in a 4-0 defeat against Kashiwa Reysol on 23 September 2007.
Tasaka left Kawasaki to sign for VfL Bochum on 24 July 2012. He made his Bochum debut against Dynamo Dresden in the 2.
Bundesliga on 12 August 2012.