A message posted to Boca's official Twitter account in the early hours of Saturday morning welcomed the striker back to La Bombonera.
The announcement was made during Argentina's Copa America quarter-final clash with Colombia, which went to penalties and was settled by Tevez himself, who scored his sudden-death effort to secure a 5-4 victory.
Tevez joined the youth ranks at Boca in 1997 and spent three years in the senior team between 2001 and 2004, winning the Copa Sudamericana and Libertadores as well as the Intercontinental Cup.
He signed for Brazilian outfit Corinthians at the start of 2005, before sealing a controversial move to West Ham in the 2006-07 season, alongside compatriot Javier Mascherano.
Tevez played a key role in the the Hammers' Premier League survival that season but the club avoided a points deduction despite breaching England's third-party ownership rules in recruiting the two Argentina internationals.
The forward moved on to Manchester United that summer and spent two seasons on loan at Old Trafford before sealing another controversial transfer, this time across town to Manchester City.
His time in England was to be shrouded in controversy, though, and he missed a large part of the 2011-12 campaign after refusing manager Roberto Mancini's orders to warm up during a Champions League clash against Bayern Munich.
After falling out with Mancini, failing to secure a transfer away and receiving a hefty fine, Tevez returned from a long spell in Argentina to help the club win their first Premier League title.
After a final season in the Premier League, Tevez moved to Juventus in 2013 and he formed a key part of title-winning teams under Antonio Conte and Masssimiliano Allegri.
He scored 29 times last season as Juve won the Serie A title and Coppa Italia, although they were beaten in the Champions League final by Barcelona.
Tevez won three Premier League titles, the FA Cup, the League Cup, the Champions League, two Serie A titles and the Coppa Italia during his time in Europe.