Those who claim that taxation is theft, why is it any different from rent? Just because one has an implicit contract, and another an explicit? If you do not like the contract, you can always leave for another country. Oh, you cannot? Maybe you are just not trying enough, like those who cannot afford your rents. So see, taxation is simply a rent for you to be in a country.
Have you ever looked into laws governing taxes? The tax code? I cannot believe that anyone can really adhere to all the rules found there. I can understand that as a living organism they evolved through time and new and new rules were added to patch holes from before, to support new technologies, new economic practices, etc. But maybe it is a time for a reboot? If laws are too complex to comprehend and follow, do they still hold their social contract?