How Do I Cancel My EIN with the IRS?
An employer identification number (EIN) is a U.S. tax ID number assigned to businesses. If a business is closing, you may want to cancel your EIN.
I Closed my LLC – When Do I File My Final Tax Return?
When a business closes the legal entity at the state level, the entity must still file a "final" income tax return for the short period. The final tax return for the LLC will depend upon how the entity is taxed.