كتب : Omar AbdelAziz
Tagoe, 22, penned a three-year contract after passing a medical at Rhein-Neckar Arena on Tuesday.
The pacey striker is a regular for Ghana as he has scored three goals for the Black Stars in the World Cup qualifiers so far.
In addition to Ettifaq, Tagoe had spells at Ittihad Jeddah and Shabab of UAE throughout the past three seasons.