If an employer sends the wrong state ID number on W-2 do I have to have a corrected W-2? Or can I simply put in the correct ID number and file as usual?

[KiaraE]

If Box 15 state number ID is an issue, it won't really matter what you input in Box 15 Employer ID, as long as the software will accept it (explained below).  Make sure that the state where you work is correctly selected from the Box 15 drop-down menu, if it has not already been pre-populated by the TurboTax program.

Then, simply try leaving the number space entirely blank at first.  If there is any issue with Box 15 that prevents e-filing your return with a blank Box 15, and it absolutely requires some value in the software, then either try using your Federal EIN again here, or enter a "nonsense" value such as 12345 67890 (with a space in the middle, or not).

https://ttlc.intuit.com/replies/5733951