Don't get too complicated with it. We don't need multiple layers of taxation for looting gains. That's overkill. In fact, this entire mechanic is probably overkill. Looting already gains you very little in most cases. No one is getting rich from it. Adding taxes on top of it is pretty pointless. The more I think about it, the more useless this seems.
No one is getting rich from looting because it hasn't been tweaked.
