Tish Cyrus invoked “irreconcilable differences” in the divorce papers, TMZ reports.
Her decision to end their marriage comes three years after her husband also filed for divorce in October 2010, but dropped the legal procedures to give the relationship another chance.
In March 2011, Billy Ray announced that he and his wife had reconciled.
The couple has been married for 19 years and have 5 children.
For the youngest, daughter Noah, 13, Tish Cyrus demanded physical and legal custody, with visitation rights for Billy Ray.
Miley’s mom demands alimony and wants him to pay her attorney’s fees.