Reese Witherspoon is said to have officially filed for divorce from her estranged husband Jim Toth, just before their 12th wedding anniversary.
The Legally Blonde actress, 47, announced the end of her marriage with the actor last week.
Now, TMZ claims to have seen court documents which cite irreconcilable differences as the reason behind their split.
The former couple tied the knot on March 26, 2011 in a stunning ceremony in Ojai, California, having first been linked in February 2010.
Reese and Jim, 52, share 10-year-old son Tennessee and are now focusing on "co-parenting amicably", having revealed it has been a "difficult decision" to make.
The documents were said to be filed in Nashville, Tennessee, where the couple lives.
The documents reveal the couple agreed to a prenuptial agreement in March 2011, according to TMZ.
Since the divorce was filed in Davidson County, Reese and her estranged husband will have to take mandatory parenting classes.
They will have 60 days to present a certificate of completion to the court.
The divorce filing comes just over a week after the pair announced the emotional news on social media.
Writing to her 29.2 million Instagram followers, Reese penned: "We have some personal news to share...
"It is with a great deal of care and consideration that we have made the difficult decision to divorce.
"We have enjoyed so many wonderful years together and are moving forward with deep love, kindness, and mutual respect for everything we have created together.
"Our biggest priority is our son and our entire family as we navigate this next chapter. These matters are never easy and are extremely personal. We truly appreciate everyone's respect for our family's privacy at this time."
Reese has since been left "disappointed and upset", according to People.
The star was previously married to Ryan Phillippe, with whom she shares her two eldest children Ava, 23, and Deacon, 19 with.
The former couple tied the knot in 1999, after meeting on the set of Cruel Intentions, but officially divorced in 2008.
Daughter Ava Phillippe has recently shared how she is "endlessly inspired" by her mother and described the actress as a "force of nature".
The Mirror has contacted Reese Witherspoon's representative for comment.
