Along with your W-2 state filing, Illinois mandates the filing of the Annual Reconciliation Form IL-941 to be submitted. You will be able to submit both forms to the state through ExpressTaxFilings.
|Filing Type||Due Date|
|Electronic Filing||February 15|
You must file the form W-2 & W-2c even if there was no state withholding.
Nothing, if you are filing electronically with ExpressTaxFilings!
The state of Illinois accepts both e-filing and paper filing.