Here is a word from the Goodfellas at the IRS:
IRS Special Edition Tax Tip 2013-07
If you haven’t filed your 2009 federal tax return, you may still have time to claim your tax refund. The IRS has $917 million in unclaimed refunds from an estimated 984,000 tax returns that people didn’t file for the 2009 tax year. The IRS estimates that half the potential refunds for 2009 are more than $500.
Here are some things the IRS wants you to know about unclaimed refunds:
Order a transcript by filing Form 4506-T, Request for Transcript of Tax Return, with the IRS, or by calling 800-829-1040.