I went to e-file my taxes and I got a message saying that it had already been filed. I didn't understand how that could have happened since I didn't file it. So I looked on the IRS site and found out

[AnnetteB6]

Did you submit your information through one of the non-filer applications in order to get your stimulus payment?  There are non-filer options either through TurboTax or the IRS.  

If so, when using the non-filer system, your information is processed by the IRS as an original filed return. 

If not, then you may have a more serious identity theft issue to address. 

See the following TurboTax articles for some additional advice about your situation: 

Reject R0000-902-01:  Taxpayer TIN must not be the same as a previously accepted return

What to do if you suspect tax-related identity theft

@jls30605

[jls30605]

Thanks so much, that explains alot. I had to go to IRS.gov as a non-filer in order to submit my 2018 income for the stimulus payment. That is because I had to pay my taxes in installments. So even though they had my bank account info for me to pay them, they couldn't use that same info to pay me.