The 28-year-old Wales global had already been told by new Arsenal manager Unai Emery that he did not feature in his plans at the Emirates and will soon bring to an end his 10-year association with the north London club.
It will however make him Juventus's second-highest earner behind Cristiano Ronaldo, but ahead Paulo Dybala and Douglas Costa.
Wales global Ramsey joined Arsenal from Cardiff in 2008 and has scored 52 goals in his 252 Premier League games.
Ramsey has been linked with several clubs from across Europe and it has been recently reported that Juventus are closing in on a deal to sign him in the January transfer window.
But BBC Sport say Ramsey has not decided where he will play yet even though Juventus is his "current preference".
Unai Emery has reiterated that Aaron Ramsey will remain at the Emirates until the end of the season.
"My idea and focus, I say to him every day, is that we need his performance for us", said Emery.
"In the last match I was very happy with him". He played with a big commitment to us.
Sky Sports in the United Kingdom also agrees with its Italian sister that Ramsey will complete his Bosman transfer to Juve after the Supercoppa on January 16. But every day in training he is working very well.