Why will it take the incorrect number when you print to mail ?
Because the IRS will check that number when you attach the W-2 to the return. When you efile it they check the number before they accept the return. This is efficient because if you mail in the return and the number is not correct or valid then they will mail you back your unprocessed return which adds weeks to your processing time. When you efile you have notice of the issue within a day.
As mentioned below ... you cannot amend a return that has never been accepted and processed so undo the amendment and make the correction. If you did enter the EIN correctly from the W-2 then ask the employer if the number is correct or if they received the EIN in 2017. If it is incorrect get the correct number and try again. If it is a new number your only option is to mail in the return.
Unamend instructions : <a rel="nofollow" target="_blank" href="
https://ttlc.intuit.com/replies/6127353">https://ttlc.intuit.com/replies/6127353</a>
