A court has decided that Wilson will only receive $600,000 as opposed to the $4.5 million she was originally awarded.
The star of three "Pitch Perfect" movies and "Bridesmaids" won AUS$4.6 million (US$3.5 million) in damages from the German publisher past year after a court found a series of articles accusing her of lying about her age, name and childhood events had cost her roles.
The jury had been asked to consider 40 questions and eight claims of defamation relating to a series of articles accusing Wilson of lying about her age, real name and childhood.
A number of media companies - including Nine Entertainment, the publisher of this website - attempted to join Bauer Media in its appeal against the award to Wilson.
Rebel Wilson has lost Bauer Media's appeal regarding how much they will pay for defaming her.
"The Court of Appeal in Australia will be handing down their decision in the morning re my defamation case against @bauermedia".
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But today's appeal decision sets aside the special damages payout for economic loss and also cuts $50,000 off the general damages, concluding that "there was no basis in the evidence for making any award of damages for economic loss".
Wilson's lawyers had argued she missed out on film roles between mid-2015 and the end of 2016 due to the "grapevine effect" the articles had within the film industry.
With defamation payouts capped in Australia at $350,000, University of Melbourne Law Professor Andrew Kenyon told 9news.com.au when news broke of the damages ruling this payout is "way higher" than Australia has ever seen. "As I've said before, I have already won the case and this is unchallenged".
The Court of Appeal is yet to determine costs. In both June and September, she tweeted that she would be endowing the money on charity, scholarships, and in support of the Australian film industry at large.
Actress Rebel Wilson struts across the stage as she is introduced to speak at College Signing Day, an event honoring Philadelphia students for their pursuit of a college education or career in the military at Temple University in Philadelphia, May 2, 2018.