The England striker apparently negotiated the deal when he agreed his transfer to Anfield on the final day of the transfer window in January.
Carroll has featured mainly from the bench since his arrival, scoring just four goals for Kenny Dalglish’s side.
According to the Daily Mail, the 22-year-old picks up a weekly salary of £60,000 but also earns a further £10,000 in image rights and £5,000 in appearance fees.
The former Magpies forward is also entitled to an increase in his salary if he were to play more than 60% of Liverpool’s games this season, however, this looks unlikely as he has yet to nail down a starting place at the club due to competition from Luis Suarez, Craig Bellamy and Dirk Kuyt.
Carroll rose to prominence last season, scoring 11 goals in 19 games at St. James' Park, yet has since struggled due to injury.