My state employer's state ID number is not on my W-2 form. What should I do?

You will need to contact your employer that issued the W-2 form to obtain this number.  Each state identification number is unique to each entity.  

The state ID number as provided by your employer on your W-2 Form is matched to the information entered into TurboTax.  This information is matched by the taxing agencies to ensure the correct withholdings are reflected on your income tax return.

Any discrepancies could result in errors while trying to electronically file your income tax return.  Having the correct information ensures you receive credit for any state income taxes withheld in the correct state.