Tănase spent most of his career in Romania with Arsenal and FCSB, winning seven domestic trophies with the latter, and also had several stints at clubs in China and Turkey.
Tănase began his career as a junior at FC Argeș Pitești, and in the summer of 2003 was promoted to the first team which competed in the Divizia A, the top flight of the Romanian league system. He appeared sparingly during his first years with the seniors[3] and was subsequently loaned to Dacia Mioveni for the first half of the 2005–06 campaign.
Tănase totalled five games for Mioveni[2] and upon his return to Argeș became an important player, amassing over 100 games before his departure.[4]
Steaua București
On 6 August 2009, Tănase signed a five-year contract with FCSB for an undisclosed fee, reported by media to be €1.8 million for half of his economic rights.[5][6]
In the summer of 2015, after six years in Bucharest, Tănase joined Tianjin TEDA in China on a two-year contract for a transfer fee of £700,000. The next year, he moved to Turkish team Sivasspor by signing a two-year deal.
After half a season at Sivasspor, Tănase left for another Turkish club, agreeing to a two-year contract with Kardemir Karabükspor. In January 2018, he returned to FCSB, for a six-month spell with the Roș-albaștrii.
On 20 July 2018, it was announced that Tănase signed a two-year contract with Eskişehirspor.