Other places you can find your EIN:
Are you looking for your own business EIN number or one from an employer?
Your employer’s Employer Identification Number (EIN) can be found in box b of your W-2. If you worked for the same employer last year, the EIN would have been on last year’s W-2. Sometimes the EIN is located on your weekly paystub.
You can go the employer’s human resources and ask for their EIN but don’t be surprised if they will not tell you. That would be like asking someone what their Social Security number is.
If TurboTax is partnering with your employer and is allowed to download their W-2’s, your employer would be listed here.