The singer-and-actor has reportedly parted ways with advisors just one month before his band 30 Seconds To Mars are due to release new album This Is War.
A source told Britains The Sun newspaper: Jared is too controlling. This latest move just feels like self-sabotage.
It's very strange timing as his management team was very good. His tour manager has now left too.
"No one can quite believe what's happening."
Record company bosses have refused to be drawn on the reports.
A representative said: I have heard rumours of the guys parting company but nothing has been confirmed.
The 37-year-old star is notoriously precious about his music career, and refuses to discuss films he has been in when promoting his records.
Meanwhile, Jared has spoken out in support of gay rights group FAIR.
The organisation has persuaded a number of celebrities to autograph copies of a poster supporting gay marriage, which are to be auctioned online.
Jared, 37, decided to make his poster a little different to the rest, by writing the words of the Proposition 8 ballot which was passed in California in 2008, and outlaws gay marriage - on it and then setting in alight.
He then placed the ashes in a jar, writing on: Here lies within, the remains of Proposition 8, may it rest in peace.
