Jackson died June 25 at the age of 50. The cause of his death is still under investigation.
A public memorial was held for the singer July 7, but his body has not been interred yet.
His family announced recently that he would be interred in the Great Mausoleum in Forest Lawn Cemetery in Glendale, Calif., on Aug. 29, what would have been his 51st birthday.
However, Joe Jackson told TMZ Thursday the burial has been rescheduled for Aug. 31 because there are still matters the family needs to get in order.