If you are planning on changing your business structure and already have an FEIN, you may need to get a new one if the business organization or ownership of your business changes. If you incorporate a sole proprietorship or form a partnership, you must get a new FEIN. However, do not apply for a new FEIN if:
You change only the name of your business
A partnership or corporation declares bankruptcy
A corporation chooses to be taxed as an S corporation
You elected on Form 8832 Entity Classification Election, to change the way the entity is taxed
You change the business location or add locations
You elect to be taxed as an S corporation