Uli Hoeness began his prison sentence for tax evasion at Landsberg Prison on Monday, the former Bayern Munich president's lawyers have confirmed.
Hoeness, 62, was sentenced to three-and-a-half-years in prison for tax evasion in March for failing to pay at least 28.5 million euros owed to the German authorities, far more than the three million euros that had been initially reported beforehand.
In the wake of the trial, the former West Germany international stepped down from his role as Bayern president and chairman of the club's supervisory board.
He has since been replaced by Karl Hopfner as club president, and by Adidas CEO Herbert Hainer as chief of the supervisory board.
Some 81 days after being convicted, Hoeness has now begun his sentence, his lawyers confirmed to German news wire dpa.
"Today, Ulrich Hoeness has reported for his custodial sentence at Landsberg Prison," his lawyers were quoted as saying.
Dpa reported that Hoeness could leave Landsberg Prison on day parole after serving 10 months. His sentence could come to an end in autumn of 2016, when he could be released for good conduct, having served two thirds of his prison term.