When e-filing, one of my 1099NEC shows no federal withholding but is requiring to have an EIN number. Why is this happening when the box is $0?

A form 1099-NEC must have the EIN of the payer.

If your form 1099-NEC has no EIN then you can report the income as Other Self-employed income. Just keep that form 1099-NEC in your tax records.

1. In business income, just under Type of Income, click on Add Income for this work
2. On the next page, click on the radio button next to Other Self-employed Income
3. Click Continue to enter your income received in cash, checks or bank transfers.

No. My income is entered and there is $0.00 taken out of federal but it’s still requiring me to enter the payers EIN, she has a SS that I entered. So I’m confused on why it’s asking for this when there’s $0 federal taken out. 

When someone issues a 1099-NEC, they send a copy to the IRS.

The IRS matches this copy, and the way they are matched is based on the Payer's ID (EIN, Social Security Number).

Whether tax is withheld or not, all the forms issued are matched.