Here’s what HIVE AI had to say about “How should stock sale gains and losses be reported?”:
Where stock sale gains/losses are reported (typical individual return)
- Most stock sales are reported on Form 8949 first, then totals flow to Schedule D (Form 1040), which is where your net capital gain/loss is computed.
- Whether a sale is short-term or long-term depends on your holding period: 1 year or less is short-term (Form 8949 Part I / Schedule D Part I); more than 1 year is long-term (Form 8949 Part II / Schedule D Part II).
Using your broker statement (Form 1099-B) to complete Form 8949
- For covered securities, your broker generally reports basis to you (and to the IRS) and it appears on Form 1099-B; you generally enter that basis in Form 8949 column (e).
- If the basis on Form 1099-B is wrong or needs an adjustment, you still report the sale on Form 8949 and use the adjustment columns (columns (f) and (g)) to reflect the correction.
Common adjustment: wash sales
- If you have a nondeductible wash sale loss, report the sale on Form 8949, enter code W in column (f), and enter the disallowed loss as a positive number in column (g).
A couple of “special situation” notes
- Compensatory stock options: the basis shown on Form 1099-B may not include amounts you already included in wages/income at grant or exercise, so the Form 8949 basis may need to be increased accordingly.
- If you’re a trader who made a mark-to-market election, gains and losses are generally reported as ordinary on Form 4797 rather than as capital gains/losses on Form 8949/Schedule D.
If you tell me whether you received a Form 1099-B and whether any transactions have codes/adjustments shown (for example wash sale), I can describe exactly which Form 8949 boxes/columns you’d use.
Sources
1 – About Schedule D (Form 1040), Capital Gains and Losses
2 – Instructions for Form 8949 (2025)
3 – Instructions for Schedule D (Form 1040) (2025)
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