No, I actually believe he “pays” his kickbacks, except never in a way that actually costs him money.
I’m sure he gives his benefactors free memberships in his country clubs, free stays at his properties, government positions, private sector positions in his companies, and more importantly, his other allies companies.
SCOTUS appointments didn’t cost him a dime, but earned him the undying loyalty of the federalist and most of the GOP.
He wheels and deals favors, not cash. And ever since he took the GOP and the country by the balls, he hasn’t even bothered with the favors part unless he really has to.