Can I upload an attachment when e-filing return with TurboTax?

[popomama1]

Hi,

Can I upload 1099-DA when I e-File my return with TurboTax? I can't import the 1099-DA from TT desktop version as it says it can't find it. I was wondering if I can attach it when doing e-filing ? I know some tax software allows it.

[LeticiaF1]

If you already entered your transactions in to TurboTax, you do not need to send your 1099-DA to the IRS unless you get a request from TurboTax.  If you get the request, you will need to print a Form 8453  and mail it with the necessary documents within 3 business days after your return is accepted.  

How do I import my digital asset transactions into TurboTax?

How do I mail Form 8453?