How does the IRS receive our various 1099 forms when we filed the federal and state tax forms electronically? Why did Turbo Tax not mention adding attachments?

[mcdevaney]

Does the IRS need our 1099 forms asTurbo Tax did not ask for them when we filed electronically?

[DoninGA]

The tax data from the Forms 1099 that you entered on your tax return is received by the IRS when you e-file your return.  There is no need to mail a W-2 or a Forms 1099 to the IRS.

[TomK2023]

No, that's part of the convenience of filing electronically, you do not need to attach nor mail anything unless explicitly asked to do so.