(805 ILCS 5/16.05) (from Ch. 32, par. 16.05)
    Sec. 16.05. Penalties and interest imposed upon corporations.
    (a) Each corporation, domestic or foreign, that fails or refuses to file any annual report or report of cumulative changes in paid-in capital and pay any franchise tax due pursuant to the report prior to the first day of its anniversary month or, in the case of a corporation which has established an extended filing month, the extended filing month of the corporation shall pay a penalty of 10% of the amount of any delinquent franchise tax due for the report. From February 1, 2008 through March 15, 2008, no penalty shall be imposed with respect to any amount of delinquent franchise tax paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (b) Each corporation, domestic or foreign, that fails or refuses to file a report of issuance of shares or increase in paid-in capital within the time prescribed by this Act is subject to a penalty on any obligation occurring prior to January 1, 1991, and interest on those obligations on or after January 1, 1991, for each calendar month or part of month that it is delinquent in the amount of 2% of the amount of license fees and franchise taxes provided by this Act to be paid on account of the issuance of shares or increase in paid-in capital. From February 1, 2008 through March 15, 2008, no penalty shall be imposed, or interest charged, with respect to any amount of delinquent license fees and franchise taxes paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (c) Each corporation, domestic or foreign, that fails or refuses to file a report of cumulative changes in paid-in capital or report following merger within the time prescribed by this Act is subject to interest on or after January 1, 1992, for each calendar month or part of month that it is delinquent, in the amount of 2% of the amount of franchise taxes provided by this Act to be paid on account of the issuance of shares or increase in paid-in capital disclosed on the report of cumulative changes in paid-in capital or report following merger, or $1, whichever is greater. From February 1, 2008 through March 15, 2008, no interest shall be charged with respect to any amount of delinquent franchise tax paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (d) If the annual franchise tax, or the supplemental annual franchise tax for any 12-month period commencing July 1, 1968, or July 1 of any subsequent year through June 30, 1983, assessed in accordance with this Act, is not paid by July 31, it is delinquent, and there is added a penalty prior to January 1, 1991, and interest on and after January 1, 1991, of 2% for each month or part of month that it is delinquent commencing with the month of August, or $1, whichever is greater. From February 1, 2008 through March 15, 2008, no penalty shall be imposed, or interest charged, with respect to any amount of delinquent franchise taxes paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (e) If the supplemental annual franchise tax assessed in accordance with the provisions of this Act for the 12-month period commencing July 1, 1967, is not paid by September 30, 1967, it is delinquent, and there is added a penalty prior to January 1, 1991, and interest on and after January 1, 1991, of 2% for each month or part of month that it is delinquent commencing with the month of October, 1967. From February 1, 2008 through March 15, 2008, no penalty shall be imposed, or interest charged, with respect to any amount of delinquent franchise taxes paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (f) If any annual franchise tax for any period beginning on or after July 1, 1983, is not paid by the time period herein prescribed, it is delinquent and there is added a penalty prior to January 1, 1991, and interest on and after January 1, 1991, of 2% for each month or part of a month that it is delinquent commencing with the anniversary month or in the case of a corporation that has established an extended filing month, the extended filing month, or $1, whichever is greater. From February 1, 2008 through March 15, 2008, no penalty shall be imposed, or interest charged, with respect to any amount of delinquent franchise taxes paid pursuant to the Franchise Tax and License Fee Amnesty Act of 2007.
    (g) Any corporation, domestic or foreign, failing to pay the prescribed fee for assumed corporate name renewal when due and payable shall be given notice of nonpayment by the Secretary of State by regular mail; and if the fee together with a penalty fee of $5 is not paid within 90 days after the notice is mailed, the right to use the assumed name shall cease.
    (h) Any corporation which (i) puts forth any sign or advertisement, assuming any name other than that by which it is incorporated or otherwise authorized by law to act or (ii) violates Section 3.25, shall be guilty of a Class C misdemeanor and shall be deemed guilty of an additional offense for each day it shall continue to so offend.
    (i) Each corporation, domestic or foreign, that fails or refuses (1) to answer truthfully and fully within the time prescribed by this Act interrogatories propounded by the Secretary of State in accordance with this Act or (2) to perform any other act required by this Act to be performed by the corporation, is guilty of a Class C misdemeanor.
    (j) Each corporation that fails or refuses to file articles of revocation of dissolution within the time prescribed by this Act is subject to a penalty for each calendar month or part of the month that it is delinquent in the amount of $50.
(Source: P.A. 95-233, eff. 8-16-07; 95-707, eff. 1-11-08; 96-1121, eff. 1-1-11.)