Have you ever been concerned about potential mistakes in your taxes? Many Florida residents made inadvertent errors when they are processing their own taxes -- but does this constitute a tax crime? Luckily, experts say that honest mistakes are very rarely prosecuted. In most cases, those individuals must simply pay the difference in the amount of taxes they missed. However, when payers intentionally attempt to defraud the government by underpaying their taxes, additional criminal penalties may come into play.