TMZ reports that the pair’s separation was finalized on Nov. 26.
The site writes that the proceedings took so long due to disputes over money.
Moore was said to be demanding spousal support at a certain point but she reportedly abandoned that claim.
The marriage ended in November 2011 after six years, when reports surfaced about Kutcher’s brief affair with a San Diego woman.
Kutcher has since been dating his That ’70s Show co-star, actress Mila Kunis, 30.