The two filings were rare unsealed public documents in the case that gave a glimpse into the slow-moving divorce of the 54-year-old actor Pitt and the 43-year-old actress and director Jolie Pitt.
The statement said: 'Brad was asked to assist in the expense of a new home for Angelina and the children, but instead he loaned Angelina money, for which he is charging her interest on a payment plan.
Brad's lawyers also claimed Angelina and her attorneys never made any mention of child support in previous documents and labelled her recent court filings "calculated to increase the conflict".
Jolie's legal team had a few choice words for Pitt's filing as well. "Brad was coping with Angie's hard moves when everything was sealed, but now that she is changing attorneys and going public with her filings again, he feels like she has taken off the gloves and is fighting dirty", the source continued.
ET has reached out to Pitt's rep for comment.
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The marriage was Pitt's second, having previously Wednesday Friends star Jennifer Aniston, and Jolie's third after actors Billy Bob Thornton and Jonny Lee Miller. "As of present, [Pitt] has paid no meaningful child support since separation", Jolie's attorney, Samantha Bley DeJean, wrote in a two-page brief filed in Los Angeles Superior Court and obtained by NBC News.
Friends of the Moneyball star say Jolie - a master media manipulator - is focused on getting positive press coverage of their upcoming custody war. Just a day before, Jolie had accused Pitt of not paying "meaningful" child support ever since their 2016 split.
Pitt and Jolie have three sons and three daughters, ages 17 and under.
The Maleficent star filed for divorce from Pitt in September 2016, after two years of marriage and 12 years together, citing irreconcilable differences.
At issue is how much time the children get to spend with their father who was cleared of any wrongdoing in an investigation that followed allegations Pitt had been "rough" with one of their children on a private plane.