I just read this post by textexyehaw and offer this info. An LLC is not a tax entity and does not file taxes. The LLC with a single participant is considered a sole proprietor ( Schedule C) unless an election is made to be treated as a C Corp or S Corp. LLC is not a category for requesting a EIN. If the LLC has more than one participant then it is assumed to be a partnership for tax purposes unless it elect to be treated as a C Corp or S Corp.
Originally Posted by zerorg
If the single member LLC has or plans to hire employees, or will open a bank checking account then the LLC should get an EIN.