35 ILCS 5/908
2021 Illinois Compiled Statutes|Chapter 35 - REVENUE|35 ILCS 5/ - Illinois Income Tax Act.|Article 9 - Procedure And Administration

 (from Ch. 120, par. 9-908)Sec. 908. Procedure on protest.(a) Time for protest.  Within 60 days (150 days if the taxpayer is  outside the United States) after the issuance of a notice of deficiency,  the taxpayer may file (i)  a protest against the proposed assessment with the Department or (ii) a petition with the Illinois Independent Tax Tribunal, as provided in this subsection (a).  Prior to July 1, 2013, a written protest against the  proposed assessment shall be filed with the Department in such form as the Department may by regulations  prescribe, setting forth the grounds on which such protest is based. If such a  protest is filed, the Department shall reconsider the proposed assessment  and, if the taxpayer has so requested, shall grant the taxpayer or his  authorized representative a hearing.On and after July 1, 2013, all  protests of a notice of deficiency that are subject to the jurisdiction of the Illinois Independent Tax Tribunal shall be filed by petition pursuant to the Illinois Independent Tax Tribunal Act of 2012.With respect to protests filed with the Department prior to July 1, 2013 that are otherwise subject to the jurisdiction of the Illinois Independent Tax Tribunal, the taxpayer may elect to be subject to the provisions of the Illinois Independent Tax Tribunal Act of 2012 at any time on or after July 1, 2013, but not later than 30 days after the date on which the protest was filed.  If made, the election shall be irrevocable.(b) Notice of decision.  With respect to protests filed with the Department that are  not subject to the provisions of the Illinois Independent Tax Tribunal Act of 2012, as soon as practicable after such  reconsideration and hearing, if any, the Department shall issue a notice of  decision by mailing such notice by certified or registered mail. Such  notice shall set forth briefly the Department's findings of fact and the  basis of decision in each case decided in whole or in part adversely to the  taxpayer.(c) Request for rehearing.  With respect to protests filed with the Department  that are  not subject to the provisions of the Illinois Independent Tax Tribunal Act of 2012, within 30 days after the mailing of a  notice of decision, the taxpayer may file with a Department a written  request for rehearing in such form as the Department may by regulations  prescribe, setting forth the grounds on which rehearing is requested. In  any such case, the Department shall, in its discretion, grant either a  rehearing or Departmental review unless, within 10 days of receipt of such  request, it shall issue a denial of such request by mailing such denial to  the taxpayer by certified or registered mail. If rehearing or Departmental  review is granted, as soon as practicable after such rehearing or  Departmental review, the Department shall issue a notice of final decision  as provided in subsection (b).(d) Finality of decision.  If the taxpayer fails to file a timely protest or petition under subsection (a) of this Section, then the Department's notice of deficiency shall become a final assessment at the end of the 60th day after the date of issuance of the notice of deficiency (or the 150th day if the taxpayer is outside the United States). If the taxpayer files a protest with the Department, and the taxpayer does not elect to be subject to the provisions of the Illinois Independent Tax Tribunal Act of 2012, then the action of the Department on the  taxpayer's protest shall become final:(1) 30 Days after issuance of a notice of decision as     provided in subsection (b); or(2) if a timely request for rehearing was made, upon     the issuance of a denial of such request or the issuance of a notice of final decision as provided in subsection (c).After the issuance of a final assessment, or a notice of deficiency which becomes final without the necessity of actually issuing a final assessment as provided in this Section, the Department, at any time before such assessment is reduced to judgment, may (subject to rules of the Department) grant a rehearing (or grant departmental review and hold an original hearing if no previous hearing in the matter has been held) upon the application of the person aggrieved.  Pursuant to such hearing or rehearing, the Department shall issue a revised final assessment to such person or his legal representative for the amount found to be due as a result of such hearing or rehearing.If the taxpayer files a petition with the Illinois Independent Tax Tribunal, or otherwise elects to be subject to the provisions of the Illinois Independent Tax Tribunal Act of 2012, then the Department's decision will become final as provided in that Act. (Source: P.A. 97-1129, eff. 8-28-12.)