TurboTax telling me to mail form 8453 after e-file, but all my asset sales are already in the return.

Hello. Hoping someone can help here.

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After (grr) e-filing, TurboTax told me to print and mail form 8453. In the form 8453, it has the final box checked for 8949.

TurboTax just says literally "Print and Mail These Forms to the Government. Even though you e-filed, you're still required to print and mail these forms" -- It doesn't give any information of supplemental forms that need to be attached.

I assume this means it wants me to attach a form 8949 but TurboTax never told me to do that. It just says "print and mail these forms" with no other info and what it has me print is only the 8453 itself. No 8949 form was given to me to print during this step (even though they exist in my return).
The "explain this" link in TurboTax just takes you to the general TT support web page.


I have thousands of asset sales and pages of 8949 forms already in my TurboTax return and I assumed it would e-file them since I can see them in "form view" in TurboTax. I don't think I "summarized" anything in listing my asset sales as far as I know (is there a way to check this?).

Am I actually supposed to print all of it out and mail it OR should I do exactly as TurboTax asks and simply print & mail the form it specifically told me to print and mail (just the 8453)?

If I do actually need to attach the 8949 copies, do I just print it straight out of TurboTax form view? This is very confusing I would expect TurboTax to just tell me exactly what I need to print and attach and where to find it.

Thanks in advance for any help.