Bail has been set at €200,000 ($230,000), Spanish national broadcaster RTVE reported on Tuesday.
Bárcenas, the treasurer of the PP from 1990 to 2009, was remanded in custody in June 2013 after an investigating judge warned he posed a flight risk and could destroy evidence in relation to his involvement in the so-called 'Caso Gürtel corruption case.
The ex-money man for the PP is charged with money laundering and tax fraud among other crimes as part of an investigation into a group of Spanish businessmen who organized PP events in exchange for kickbacks.
The move to jail the ex-treasurer came in the wake of revelations that Bárcenas held more money in Swiss accounts than was originally suspected.
Public prosecutors are currently seeking 42 and a half years' prison for Bárcenas in relation to the Gurtel Case for crimes including tax fraud and money laundering.
In a separate case, Bárcenas also claims to have managed an illegal slush for the PP, making under-the-table payments to top party figures over several years.