Meanwhile Bezos revealed on Wednesday that he and his wife have been going through a "trial separation".
Also left unanswered is one of the biggest sticking points in any divorce: How the assets amassed during the marriage will be divided.
From modest beginnings as an online bookseller, Bezos and Amazon branched out into nearly every product category available, ending up taking on established retail giants such as Wal-Mart Stores Inc.
Bezos bought The Post in 2013 in a $250 million deal. The pair met before the Amazon founder started his empire, when they worked together. They have not yet formally filed for divorce.
Last January, the couple donated $33 million to fund college scholarships for U.S. high schoolers with Deferred Action for Childhood Arrivals (DACA) status, an Obama-era program protecting young immigrants brought to the United States illegally by their parents.
"The property acquired during the marriage is common property", said Jennifer Payseno, a family lawyer at the firm McKinley Irvin in Seattle.
All that power and wealth has magnified the focus on Jeff Bezos, although his divorce seems unlikely to enthrall the public like high-profile breakups among movie stars such as Brad Pitt and Angelina Jolie.
Jocelyn Wildenstein, former wife of Alec N. Wildenstein, a business man, cost $3.8 billion.
While most people are familiar with Jeff Bezos (and certainly the ultra-convenient front-door service offered by his company), most aren't as familiar with his soon-to-be ex-wife.
Ms Bezos has credited Ms Bezos, 48, for her support when he uprooted the young couple from NY to Seattle so he could launch the online bookseller that grew into one of the world's largest retailers.
The two were engaged after three months of dating and married three months after that, according to the magazine.
Jeff and MacKenzie both attended Princeton University.
Amazon shares were mostly unchanged at market close Wednesday after briefly dipping on the announcement in early trading.
While Jeff remains atop the Amazon throne much of his net worth is tied up in AMZN shares, thus the company may need to restructure to ensure that Bezos retains his voting power following the split.