How can I submit W-2 form corrections to data previously accepted by the Tax Commission?
To modify previously submitted W-2 data, correct only the W-2s that need to be modified and submit the file in theEFW2C format by choosing Correction from the drop down Submission Type list. You may upload the corrected W-2(s) in a file or enter them individually using the online form. These files must be in the EFW2C format as specified by Social Security Administration (SSA). See What are EFW2, and EFW2C?for more information on SSA’s record formats.
