No, don't leave it blank.
The IRS considers you an independent contractor or self-employed and have your
own business if your income is reported on
1099-MISC (Box 7), instead of a W-2.
When going through the TurboTax section to set up your business:
- Enter
your Name as the business name,
- Enter
your address as the Business Address and,
- Click
on NO when asked if you have an Employer Identification
Number.