If you failed to file your taxes you could be facing tax evasion and interest penalties. File your taxes as soon as you can, even if you can’t afford your tax bill at the time. The penalty for late filing can be up to 10 times higher then the failure to pay penalty, the longer you wait the worse it will be. You must file before the statue of limitations times out.
For more information on what to do if I didn’t file taxes please read this article http://ez-online-tax-filing.com//what-to-do-when-you-have-not-filed-taxes-for-many-years.html