That's strange, years ago my brother talked to someone in the local diocese about becoming a priest, and he was told the church doesn't pay any tuition.
It would depend on which diocese he belongs to, on the aspirant, on his or his family’s ability to pay, on whether or not he is called to join a religious community or a diocese.
The person referred to in this thread has a lifetime of study behind him, some of which was probably self funded. He is a theologian, studied in Melbourne and London and even has an entry in Wikipedia.