Angelina's attorney Samantha Bley DeJean stated in papers filed on Tuesday, August 7: "Pitt has a duty to pay child support".
Jason LaVeris via Getty Images Angelina Jolie and Brad Pitt pictured in 2015 during their last public appearance as a couple.
Jolie Pitt filed for divorce almost two years ago and now has primary custody of their six children.
As reported by E Online, in a two-page brief, which was filed in L.A. Superior Court and obtained by NBC News, Angelina's attorney wrote that the actress plans to request a court order for the establishment of a retroactive child support order.
The estranged couple has not yet finalized their divorce, and reportedly put the process on hold as they worked out a shared custody agreement.
"The aim of Angelina's routine court filing is to provide closure to the marriage in a way that clears a path toward the next stage of their lives and allows her and Brad to recommit as devoted co-parents to their children", her spokeswoman, Mindy Nyby, told "Good Morning America" in a statement.
"It's just been the hardest time, and we're just kind of coming up for air", she told the magazine, shortly after moving into a $25 million, six-bedroom, 10-bathroom home with her children in the Los Angeles neighborhood Los Feliz.
Jolie's team is asking for a status conference to address the issue. The documents acknowledge that the duo had an "informal arrangement", but that Pitt has not lived up to that agreement.
In California, child support is decided between the parents, so it's unclear what "meaningful" means in the context of two ridiculously wealthy celebrities - especially when your kids are so kitted out in designer brands that an average outfit costs the same as a university degree.
Access has reached out to reps for both Brad Pitt for comment.
Jolie has sought sole custody of the children.
Pitt admitted in his first post-split interview in May that heavy drinking contributed to the breakdown of his marriage, and said he was now a teetotaler.