Now in his second season at the City Ground, Anderson has broken into the England squad and is attracting interest from the Premier League's biggest clubs.
Real Madrid, Manchester United, Manchester City and Chelsea are among the suitors. It has also been reported that Newcastle want to sign Anderson back.
Now Sky Deutschland reports Forest have set an asking price of £120 million to sell the midfielder.
The 22-year-old's current contract with Forest runs until the summer of 2029.