Yes, you will need to get an EIN, but it is easy.
If you must withhold and pay social security and Medicare taxes, or if you withhold federal income tax, you'll need to complete Form W-2.pdf, Wage and Tax Statement, for each employee. ... To complete Form W-2, you'll need an employer identification number (EIN) and your employees' social security numbers.
https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-n...