If you canceled the amended return and didn't print and mail it in, then no amended return was filed.  And, you can check to see whether your tax return was filed by simply re-opening your return or signing back in to TurboTax. Your filing status should be the first thing you see, it will either say e-file or Ready to mail for your status. If you do not see your filing status, then you will need to revisit your return and complete the filing process.