My form 8543 has the box checked for form 8949. Do I need to send this form or the form from my broker related to this form?

[DDollar · Accepted solution]

Both. It sounds like you entered category totals for for your investment sales rather than enter each transaction.  If so, follow these directions:

E-filed returns – Within three days after the IRS has accepted your return, mail the Form 8949 generated by TurboTax, a copy of the summary statements provided by your broker, and the Form 8453 generated by TurboTax, to the following address:

Internal Revenue Service
Attn: Shipping and Receiving, 0254
Receipt and Control Branch
Austin, TX 73344-0254

Paper-filed returns – Include the Schedule D prepared by TurboTax and a copy of your transaction summary from your broker or financial institution. Include both Schedule D and Form 8949 with your mailed return, along with any other paperwork specified in the Filing Instructions printout.