Illinois Releases Updated 2018 Amended Illinois Withholding Income Tax Return

Paul Ogawa
July 13, 2018

The Illinois Department of Revenue recently released an updated version of Form IL-941-X, the 2018 Amended Illinois Withholding Income Tax Return. This form is filed by employers who seek to amend their withholding tax returns (filed on Form IL-941) for the 2018 tax year.

The form is largely the same as the previous version released in December 2017, with one minor change:

  • The new version of the form removes instructions for filing W-2, W-2G, and 1099 forms, and simply states that the filer must attach Schedule P.
    • Please note this does not remove the requirement to file W-2, W-2G, and 1099 forms if required, it is simply a change to the form instructions.

To review this form in its entirety, please visit the Illinois Department of Revenue by clicking here.

Sign up for Email Updates

Stay up to date with the latest tax and compliance updates that may impact your business.


Paul Ogawa

Paul Ogawa is a Senior Regulatory Counsel at Sovos Compliance. As part of the Regulatory Analysis team, his main areas of focus are state and federal tax withholding, the Affordable Care Act (ACA), and Canadian tax information reporting. Prior to Sovos, Paul worked as a litigation attorney in Boston area law firms, representing clients in insurance subrogation claims, family law matters, and employment disputes. Paul is a member of the Massachusetts Bar, earned his B.A. from Brandeis University and his J.D. from the Suffolk University Law School.
Share This Post