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@kent_mil1 wrote:

How can I confirm the signed 8453-S is attached before I transmit.  It only shows the unsigned doc in my file of docs to be emailed.


If you scanned the form you signed and uploaded that form to TurboTax Business, then that is the form (which is signed by you) that is attached to the return.

 

The 8453-S in the list of forms is just the unsigned, generic 8453-S, not the form you uploaded as an attachment.