Speaking after their separation had been confirmed earlier this year, a representative for Adele said: "They are committed to raising their son together lovingly".
That post suggested that her new album would be called 30, following the albums 19, 21, and 25. "There will be no further comment".
The singer filed docs at a Los Angeles courthouse on Thursday, September 12, just five months after it was reported the couple had separated.
They tied the knot in a secret 2016 ceremony, with Adele publicly addressing the wedding for the first time during an acceptance speech at the 2017 Grammys.
The singer's debut album, which was released in 2008 and featured hits including Chasing Pavements and Hometown Glory, reached number one in the UK.
She went on to win a string of awards and her follow-up, 21, topped the charts in 30 countries including the United States and the UK. The latter, released in 2015, became the fastest-selling album of all time in the United Kingdom, and was the highest selling album in the world that year. The couple has a 6-year-old son Angelo.
Meanwhile, he has his own earnings, having founded the company Life Water and its charity partner, drop4drop, as well running the company Mammoth Water Resources.