Can I file my business income and replacement tax forms electronically?

Yes. Illinois offers two methods for filing your business income and replacement tax forms electronically.

  • You can electronically file your Form IL-1041 or IL-990-T and attachments through MyTax Illinois. MyTax Illinois is a centralized location on our website where taxpayers may register a new business or electronically file tax returns, make payments, and manage their tax accounts.
  • You can electronically file your Form IL-1120, IL-1065, IL-1120-ST, IL-1041 and attachments through our partnership with the IRS Modernized e-File program (MeF).

Please see this link for current information and software providers.

If you have additional inquiries, you may submit them to the Questions, Comments, or Request form.