So you've spent 10% and are 50% up. Isn't that already advantageous enough for you? Taxes fund a civilised and (mostly) well run society that you benefit from.

So you've spent 10% and are 50% up. Isn't that already advantageous enough for you? Taxes fund a civilised and (mostly) well run society that you benefit from. Misreporting your gross income shifts more of that burden onto your friends and neighbours!