Yes, you can delete that 1099-MISC if you have not filed your tax return.
If you added the 1099-MISC under Other Common Income. You can delete it there.
If you entered it as a under Self-Employment, you can get back to a Summary section through the Income and Expenses tab.
Select Self-Employment under the full list of income. Here you will see the business and edit.
Here's how to Delete a form if the above methods do not work:
1. Go to Tax Tools (on bottom left-hand side of screen)
2. Select Tools (expanded box will appear in the middle of your screen)
3. Choose Delete a Form
4. Find 1099-MISC entered incorrectly and select to Delete.
5. As a step to be sure the form has been deleted, run through step 4 once more to be sure the form was deleted as well as any related worksheets.
