Generally, if you e-file and report Form 1099-B information in summary form, using Form 8949 and Schedule D, you aren't required to mail the 1099-B to the IRS.
However, an exception exists: If your transactions are in Boxes B, C, E, or F (indicating non-covered or unreported basis) or if you had tax withholding, you must mail a copy of your statement along with Form 8453.
If this situation doesn't apply to you, you aren't required to mail in the statement or Form 8453.
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