This means you have already filed a return. Are you trying to file a second return?
I had not already filed a return. I went through Turbo Tax to complete my extension (4868) and had TT submit it right away. I then immediately paid the estimated taxes directly to the IRS. About 45 minutes later I got the error message.
Is it possible that the IRS treats the payment itself as the extension request? That is how my state (Maine) does it.
Yes, if you made a payment, the extension automatically is filed.
Ah, thank you. That wasn't clear to me. Should I still mail the form, so the IRS has a record of it?
Thanks. I had the same issue happen and it's not clear whether there is an identity theft issue or if the payment on IRS website causes automatic extension filing, thus causing the TT extension filing fail with the above error.
If you made a payment, an extension is automatic issued when you made that payment. If you tried to file an amendment after making the payment, it would be rejected because one went on file when you made your payment.
Is this true when you file an 1040-ES, an auto extension? That I filed in December, then tried to file an extension on April15th and received this rejection notice.
Yes, if you filed an Extension in December, then again on April 15th, you could get this message. If you can explain why you felt the need to file a second extension request, we'll try to help.