If your LLC issues, or will even "potentially" issue a 1099-MISC or W-2 in the future, then I highly recommend an EIN. Otherwise, you will be putting your social security number on tax reporting documents you provide to employees and/or vendors that you may have never actually met and therefore do not know there. For me, I use an EIN in my single member LLC, because there is no way on this green earth that I will EVER give my SSN to one of my vendors. They get the EIN, or I don't do business with them.
