i have been thinking lately about many things in star wars universe starting with the Jedi order, how do they get their financing and who decide how much, the same for the Sith?
The previaling theory is that the repbulic finance the jedi.
I personal think alot of people offer small contribution in the same way rilgues persons spent money to there local shrine.
In a republic of trillions that is alot..
There probley also get alot from the senators as they are the sworn defenders of the republic.
As for the sith....they simply take what they want.