Use Form 8949 to reconcile amounts that were reported to you and the IRS on Form 1099-B or 1099-S (or substitute statement) with the amounts you report on your return. The subtotals from this form will then be carried over to Schedule D (Form 1040), where gain or loss will be calculated in aggregate.
Current revision
Recent developments
Corrections to the 2020 instructions for Form 8949 --12-MAY-2021