You can E-file your return exactly as it is. I expect you will be advised to mail a 8453 along with the detail of the 8949 and te 1099-B. Form 8453 for Attachments
Mail Form 8453 to:
- Internal Revenue Service
- Attn: Shipping and Receiving
- 0254 Receipt and Control Branch
- Austin, TX 73344-0254
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