[rmidthun]

I think you need to read that linked article a bit more closely.

"You can go to jail for not filing your taxes. You can go to jail for lying on your return. But you can’t go to jail for not having enough money to pay your taxes. "

That is, if you intentionally avoid paying taxes by either not filing or filing a fraudulent report, then you certain can go to jail. See Al Capone for the most famous example.