Internal Revenue Service (IRS) insists on tracking down those people who deliberately fail to file tax return in US. Willfully avoiding tax is considered as an offence in the US. IRS has legal rights to place such person in prison or fine him. But before taking such decision IRS try to acquire due taxes through various ways.
They have the ability to retain a portion of your wage until your tax debt is satisfied. They will continue to do so unless there is a payment arrangement.
State taxation agency can seize your property as well. They have the right to stop your bank account and collect their dues. Usually, IRS sends audit notice. If you receive any such notice, be prepare that your entire tax return will be reviewed.
You have to answer if they find any discrepancies in those records. You must learn in details about such audits and prepare to defend yourself. If there are some dues or you have not represented information properly, it may give rise to several problems. If you feel at loss you can consult with efficient Tax Attorneys. An experienced attorney who is into this business for several years can suggest you best how to resolve such matters.