Does a Pennsylvania Single-Member LLC need an EIN?

While not technically required by the IRS, it is advisable to have an Employer Identification Number (EIN) for any business you form, including a single-member LLC. For starters, most banks require you to obtain an EIN to establish a business bank account in the name of the company. Also, having an EIN for your LLC helps separate your business credit profile from your personal credit profile, which is useful for things such as obtaining business lines of credit or business loans. Ultimately, the whole point of an LLC is to have a separate legal entity, so it makes sense for your business to have its own tax identification number as well.