2020 Instructions for Form 1099-B - IRS tax forms

When selling a noncovered security and reporting it on a separate Form 1099-B, you may check box 5 and leave boxes 1b, 1e, 1f, 1g, and 2 blank. If you check box 5, you may choose to report the information requested in boxes 1b, 1e, 1f, 1g, and 2 and will not be subject to penalties under section ................
................