No, 1099 forms are not sent to the IRS when you e-file nor should you send them in if you mail your paper return. It doesn't hurt to check the details because sometimes there can be an error from an upload, but the address or EIN of the payer is not an essential item. It is important, however, to ensure the EIN on an uploaded W-2 is correct because if you have more than one W-2 TurboTax helps determine you paid the correct social security tax (and did not have over-withholding).
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