I do not think many adventurers would refrain from spending their money on local affairs, especially if it is in their hometown. For our Eberron campaign, our DM gives us roleplaying advantages for having paid our taxes (and the license fees for the use of weapons, magic items and spells beyond 3rd level).

When our party walks around the lower levels of Sharn, we are almost instantly recognized as the guys whose money makes their lives possible, feeding hndreds of homeless and orphans, keeping the citie's towers in shape and such, all the things taxes are supposed to be used for IN OUR WORLD. This fame provides us with some nifty bonuses while haggling, protection from outside aggressions (within temples and the dragonmarked houses alike) as well as food and shelter as soon as we touch what we call "home base".
The services available improved with every heap of treasure we hauled back to Sharn. Not for long and we will be handed the keys to the city i guess *grin*
So, yes, you can have compensation for paying taxes, but only if your DM plays along.