Unless one had a personal fortune like Ernest Chausson, it was difficult for composers at the end of the nineteenth century to live solely from their profession. Most of the time they supplemented their income through a position at the Paris Conservatoire or in a musical institution, such as the Paris Opéra, or by making a living as a performer. However, Debussy throughout his life did not fall into any of these categories. The comparison with composers who won the Prix de Rome in Debussy’s lifetime is very enlightening in this respect. Reading Debussy’s correspondence might suggest that he was a poorly paid composer who was always short of money. If in the first years of his career he had a difficult time of it, he became, thanks to Pelléas et Mélisande, a famous musician enjoying a comfortable income. A change in lifestyle linked to his remarriage and a difficult divorce, plus the absence of other operas in his catalogue, explain the spiral of indebtedness that kept increasing right up to the end of his life.