if you e-filed or only mailed the required forms then the worksheet was not sent. In any case, the worksheet is not an official tax form. the IRS probably got a 1099-S that informed them of the sale that did not show up on Form 8949 and Schedule D (the totals from Form 8949 transfer to schedule D). you'll need to send them these two items (form 8949 should show $0 in column h - gain/loss. a copy of the home sale worksheet is not required. to force the home sale to show up on Form 8949 you may need to check the box for the question "if you received Form 1099-S for this sale of your home or you want to report this sale on your return even when not required check here"
