What happens between the particular judment which happens at the moment of death and the general judgment which will only take place when Jesus Christ returns at the Second Coming?
Concerning the particular judgment, the *Catechism of the Catholic Church * (no. 1022) says that “Each man receives his eternal retribution in his immortal soul at the very moment of his death, in a particular judgment that refers his life to Christ: either entrance into the blessedness of heaven-through a purification or immediately, – or immediate and everlasting damnation.”
Now, the general judgment (Last Judgment) is when “In the presence of Christ, who is Truth itself, the truth of each man’s relationship with God will be laid bare. The Last Judgment will reveal even to its furthest consequences the good each person has done or failed to do during his earthly life:
All that the wicked do is recorded, and they do not know. When “our God comes, he does not keep silence.”. . . he will turn towards those at his left hand: . . . “I placed my poor little ones on earth for you. I as their head was seated in heaven at the right hand of my Father - but on earth my members were suffering, my members on earth were in need. If you gave anything to my members, what you gave would reach their Head. Would that you had known that my little ones were in need when I placed them on earth for you and appointed them your stewards to bring your good works into my treasury. But you have placed nothing in their hands; therefore you have found nothing in my presence.”
*Catechism of the Catholic Church * no. 1039