It depends. There is no way to attach a document to your return to be filed electronically. You would need to mail in the 1099-B along with a 8453 form. Taxpayers normally need this when they summarize their stock transactions in Turbo Tax
If Turbo Tax identifies your need to mail this statement in, an 8453 should be included in your tax forms. You will print this form out and send in along with the 1099-B form to:
Internal Revenue Service
Attn: Shipping and Receiving, 0254 Receipt and Control Branch
Austin, TX 73344-0254
Turbo Tax includes the complete instructions for this also in the software.
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