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I am confused.  Many of the answers as to why Form 8453 requesting Form 8949 relate to:

 

1.  Individuals who did not enter their detailed transactions on Form 8949 and used the Schedule D "summary option."  OK so the IRS wants to see Form 8949 or "a statement with the same information" which like some of the answers say is a copy of your 1099-B.  The 1099-B would seem to be "a statement with the same information."  

 

But of course the IRS has already been sent the 1099-B by your broker. Which raises the question as to why you need to send another copy, on paper no less?

 

But since you could have filed a fully acceptable paper return using the summary option, why does e-filing not allow this?

 

I did not use the summary option but TT still printed the 8453 instructing me to send the 8949.  But since I completed 8949 is it possible that TT did not include the 8949 when e-filing?

 

Why would I need to send a paper copy of something the IRS already has both on my 8949 and from my broker on 1099-B?

 

Thanks for clarification.