Under what circumstances am I required to obtain a new employer identification number (EIN)?

If you already have an EIN, and the organization (structure) or ownership of your business changes, you may need to apply for a new number.

Some of the circumstances under which a new number may be required are as follows:

  • An existing business is purchased or inherited by an individual who'll operate it as a sole proprietorship.
  • A sole proprietorship changes to a corporation or a partnership.
  • A sole proprietorship files for bankruptcy under Chapter 7 (liquidation) or Chapter 11 (reorganization).
  • A sole proprietorship establishes a pension, profit-sharing, or retirement plan.
  • A partnership changes to a corporation.
  • A corporation changes to a partnership.
  • An individual owner of a sole proprietorship dies, and the estate takes over the business.

This list isn't all inclusive. Please refer to Employer ID Numbers.