I'm a Jazz Bandleader. and This is a Breakdown of Every Dollar I Make...
This accomplished jazz musician also composes, plays as a sideman in other jazz ensembles, and makes two-thirds of his income from touring. Almost every other dollar comes from grants and label advances, with tiny contributions coming from record sales, publishing, and other sources.
This isn't every jazz bandleader and composer, but it is a profile of a very serious and active one. The individual, who will remain anonymous, was recently profiled in a detailed case study about different types of musicians by the Future of Music Coalition. This exhaustive breakdown lists every source of income and every expense between the years of 2006 and 2011. The only thing it lacks is hard dollar figures, based on privacy agreements.
Take a look. An embedded PDF is below, and for greater clarity, the full document can be accessed here.