Meh. That sort of thing depends.
Just cause you saved the king of Somewhere doesn't mean you don't have to pay tolls and stuff in Elsewhere.
But generally taxes, Inn rooms, the adventurers guild fees and stuff like that* should be abstracted away.
Worst case just deduct it from whatever loot gets handed out.
Ideally before it gets handed out.


*Within reason. Replenishing basic expendable resources outside survival campaigns should be fine, actual equipment or specialist stuff not.
So regular arrows? Covered. Arrows of Fireball? Have to be bought separately.
Spices for cooking covered, garlic for vampire hunts not. Drinking water yes, Holy water no.