If you mean REFUND, check here: https://sa.www4.irs.gov/irfof/lang/en/irfofgetstatus.jsp
If you did your RETURN using TurboTax and can't find where you left it, please advise: 1) Did you do it A) On-Line, or B) with Downloaded/Disk/Desktop software? 2) What tax year return did you lose track of? ...