Costner has been ordered to pay Baumgartner $63,000 in child support, and cover his children's various expenses.
Kevin Costner, Christine Baumgartner, and their three children, in 2019. Albert L. Ortega/Getty Images
As Kevin Costner and Christine Baumgartner's divorce proceedings continue, the subject of child support was an issue of contention between their respective lawyers.
Baumgartner originally asked for $248,000 per month to care for their three children, Cayden, 16; Hayes, 14; and Grace, 13. At a child-support hearing in California between August and September, her lawyers ultimately asked for $161,592.
However, after hearing from both parties, Santa Barbara County Judge Thomas P. Anderle ordered Costner to pay $63,209 a month. That is significantly less than the $75,000 a month that Costner's lawyers say he offered Baumgartner in child support back in June before things went to court.
The "Yellowstone" star will also be responsible for the cost of the children's health insurance, their private school tuition fees, and extracurricular costs for things like their hunting club dues.
In a June 28 court filing, Costner said: "I bird hunt with two of my sons and anticipate doing so with my daughter in the future. Christine does not bird hunt and she does not accompany us when we go bird hunting."
Costner gave Baumgartner $300,000 in attorney fees and expert costs in July.
Kevin Costner and his second wife Christine Baumgartner are divorcing after 18 years of marriage. Rich Fury/VF22/Getty Images for Vanity Fair
Court documents obtained by Insider show that in July, Costner was ordered to "advance $200,000 in attorney's fees, and $100,000 in expert costs" to Baumgartner by August 1.
Baumgartner has spent over $290,000 in legal fees so far, and requested that Costner give her nearly $900,000 to pay for them.
Actor Kevin Costner poses with Christine Baumgartner during their private wedding at his ranch. Lara Porzak/Rogers and Cowan via Getty Images
Per the documents obtained by Insider, Christine's lawyers said that she has racked up over $290,000 in legal fees during the divorce proceedings so far, and that number is only set to increase as the proceedings continue.
Christine's fees to one of the two law firms representing her, Griffith & Thornburgh, stands at $296,944. This doesn't include fees owed to the other attorney representing her, Susan Wiesner.
Christine's attorneys estimate that she will ultimately incur $375,000 in fees and costs after a trial later this year to determine the validity of her prenuptial agreement with Costner.
In court documents filed this week, Costner's lawyers rebuked a request from Christine asking for a further $885,000 in legal fees to prepare for the trial.
Christine is asking for $575,000 in attorney's fees and $280,000 in expert costs, said Costner's lawyers in the filing.
Costner's lawyers claim she took $105,000 from him without his consent.
Kevin Costner and Christine Baumgartner in happier times Getty Images
In a brief obtained by Insider, Costner's lawyers claimed that in addition to the $300,000 in legal fees that Costner paid Christine in July, she "secretly took" $105,000 from the actor without his "knowledge or consent" in order to pay her lawyers.
Baumgartner pays $40,000 a month to rent her new house.
Kevin Costner and his estranged wife Christine Baumgartner have been fighting an increasingly messy public divorce battle. Getty Images
Per the brief, Christine's new rental home that she shares with the couple's three children in Montecito, California, costs her $40,000 a month, which is factored into Costner's child-support payments.
Around $30,000 of the $63,209 he pays Christine a month is expected to go toward the rent.
Christine's new one-acre home has six bedrooms, a guest house, a jacuzzi, and a pool house reported People.