Taxes Q & A- I recently formed a limited liability

I recently formed a limited liability company (LLC). The LLC has no employees. Do I need a separate Federal Tax ID number for the LLC?

No, you will not need a separate Federal Tax ID number for the LLC if you are the sole owner of the LLC and the LLC has no employees. If you are the sole owner of the LLC and the LLC has employees, you will need to get a separate Federal Tax ID number, if you choose to have the LLC report and pay employment taxes with respect to employees of the LLC. If you are not the sole owner of the LLC, you will need a separate Federal Tax ID number for the LLC. See Notice 99-6, 1999-1 CB 321.

References:

Publication 1635 (PDF), Understanding your EIN - Employer identification Number - IRS

Form SS-4 (PDF), Application for Employer Identification Number

Form 8832 (PDF), Entity Classification Election

Source: www.irs.gov