Did you get an email from IRS saying they accepted it? Or just accepted in TurboTax. The IRS is not accepting until starting on Jan. 29th, but may possibly pull a few to test early. But those still won't be processed until after 29th. Either way, if you had already e-filed that federal return, you do not want to make any changes. So you'd need to go back in and remove that W-2 you added.
