If I already entered a SSN for my 1099-NEC, why do I also need an EIN?

When you enter a Form 1099-NEC the information you need to enter us the EIN for the company that issued the form.  You shouldn't have to enter your SSN, because you entered it already in the Personal Information section.  

What is a 1099-NEC?

Where do I enter my self-employment business expenses, like home office, vehicle mileage, and supplies?