At the beginning of 2007 I filed my taxes for the year of 2006 and I never got my tax return. Was there a problem with that/

Call the IRS to inquire about the refund at 1-800-829-1040. You can call up to 10 P.M. EST. It being the middle of the week, the wait should not be longer than ten minutes.

Make it clear that you are asking about the 2006 refund, because they will think you are asking about the 2007 tax return.

Also, make sure the money was not direct deposited into your bank account and you just missed it. Check you bank statement for the three months AFTER you mailed the return.