Are all your tax records in order? Have you filed all your returns? If you have not, what's preventing you from completing this task? Not filing your return when you are required to can get pretty expensive as penalties and interest start accruing on the due date of the return. If you do not file timely, you could also forfeit a refund that was due to you. You generally have 3 years from the original due date of the return to make a request for a refund, so lets not leave money on the table. If the return you have not filed is not the current year return, make sure that you use the correct forms for that year.
"No matter who you are, making informed decisions about what you do with your money, will help build a more stable financial future for you and your family." Alan Greenspan