If you haven't filed your income tax return, to edit or change your Employer Identification Number (EIN) in TurboTax:
If you have already filed your income tax return and the Employer Identification Number (EIN) is wrong, your tax return may be rejected and you'll be able to edit it.
CAN SOMEONE TELL ME HOW TO EDIT ONE OF MY TAX ID NUMERS OR THE EIN
How to Edit a W-2 in TurboTax: