It's tricky to talk about this topic because we have to be so very careful about the semantics of language! I think it would be accurate to say Buddhism does not concern itself with the notion of a soul, the approach is more about realizing what we are not, until there is nothing left to negate. Though there is the doctrine of Buddha-nature (tathagata-garbha) which is said to be beyond all individuality - though I think Buddhists would hesitate to use the label "soul" on that.

It's a distinction I think is important to make, because otherwise people might go about thinking that Buddhism propagates a cold worldview of soullessness (a Sankhya yoga teacher in India actually said to me that doctrines like emptiness and non-self cause people to become downcast! It's certainly true if anatman is taken as a dogma rather than a strategy or hypothesis for investigation)