Watchtower May 15th 1982, pp. 8,9 - "The Bible explains that at death a person is set free or released from any sins he committed."
The surrounding verses - 2, 4, 6, 8, 10 & 11 comprehensively prove that the context is figurative:
2 Certainly not! Seeing that we died with reference to sin, how can we keep living any longer in it?
4 So we were buried with him through our baptism into his death, in order that just as Christ was raised up from the dead through the glory of the Father, so we also should walk in a newness of life.
6 For we know that our old personality was nailed to the stake along with him in order for our sinful body to be made powerless, so that we should no longer go on being slaves to sin.
8 Moreover, if we have died with Christ, we believe that we will also live with him.
10 For the death that he died, he died with reference to sin...
11 Likewise you, consider yourselves to be dead with reference to sin.....
Paul was addressing people who were alive but had figuratively died to their former sinful ways. The apostle Peter stated likewise: 1 Peter 2:24 - "He himself bore our sins in his own body on the stake, so that we might die to sins and live to righteousness...."
Claiming that a person's own death wipes out their sins perverts the doctrine of Christ's ransom.