Injured spouse relief is a type of relief for a spouse not to be held responsible for debt owed by the other spouse to a government agency.
Illinois does not have a form to request injured spouse relief. For tax years ending December 31, 2009 and after if a spouse believes that they are not responsible for the outstanding debt of the other spouse, you should each file a separate IL-1040 using the married filing separately status.
Please refer to the IL-1040 instructions for information.