How come it says my social security has already been used for a return this year?

[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

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