@Irene2805 wrote:
To attach a document to a business return click the Attachments icon in the top right of your screen.
That icon/function is intended for the attachment of Form 8453 (the transmittal form). If you were to attach a different form, e-file would be inhibited. There is a method for attaching more than just Form 8453, but it involves merging two PDFs, which requires more advanced PDF software.
