The Magisterium of the Church has confirmed
throughout
centuries the eternal lot of all souls, either in
heaven, purgatory
or hell is decided once for all at the moment of
death.
Benedict XII, Benedictus Deus, January 29, 1336,
"We define that the souls of all the saints who
have left this life
soon after individual death are or will be in heaven
and have
eternal life; in addition we define that the souls
of those dying
in actual mortal sin soon after individual death
descend into hell."
(Denzinger 530)