If you have not yet filed, you should add the 1099-MISC on your tax return then file.
If you have already filed your tax return, you must amend it to add the 1099-MISC. Although you have an EIN for your business, you must file the 1099-MISC on your tax return under your SSN. The EIN is entered on Schedule C for reference only.
Please see the following TurboTax FAQ for instructions on how to amend your tax return in TurboTax.
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