Also in Canada. Yeah i know people that work under the table that do this. They'll report traceable sources of income while leaving untraceable income out. It's fairly illegal. It's actually one of the ways they get small time drug dealers, they'll go after them for tax fraud.

Personally, my taxes are simple enough that I could do them with the book if I wanted. I've found suitable tax software that doesn't cost me and is fairly easy to use. I'm not sure what it's like in America, but if you don't have a family, own property, run a business, or make a bunch of income from investments, doing taxes with a calculator really isn't that difficult.