Illinois Code § 501

§ 501.

Notice or Regulations Requiring Records, Statements and Special Returns. (a) In general. Every person liable for any tax imposed by this Act shall keep such records, render such statements, make such returns and notices, and comply with such rules and regulations as the Department may from time to time prescribe. Whenever in the judgment of the Director it is necessary, he may require any person, by notice served upon such person or by regulations, to make such returns and notices, render such statements, or keep such records, as the Director deems sufficient to show whether or not such person is liable for tax under this Act. (b) Reportable transactions. For each taxable year in which a taxpayer is required to make a disclosure statement under Treasury Regulations Section 1.6011-4 (26 CFR 1.6011-4) (including any taxpayer that is a member of a consolidated group required to make such disclosure) with respect to a reportable transaction (including a listed transaction) in which the taxpayer participated in a taxable year for which a return is required under Section 502 of this Act, such taxpayer shall file a copy of such disclosure with the Department. Disclosure under this subsection is required to be made by any taxpayer that is a member of a unitary business group that includes any person required to make a disclosure statement under Treasury Regulations Section 1.6011-4. Disclosure under this subsection is required with respect to any transaction entered into after February 28, 2000 that becomes a listed transaction at any time, and shall be made in the manner prescribed by the Department. With respect to transactions in which the taxpayer participated for taxable years ending before December 31, 2004, disclosure shall be made by the due date (including extensions) of the first return required under Section 502 of this Act due after the effective date of this amendatory Act of the 93rd General Assembly. With respect to transactions in which the taxpayer participated for taxable years ending on and after December 31, 2004, disclosure shall be made in the time and manner prescribed in Treasury Regulations Section 1.6011-4(e). Notwithstanding the above, no disclosure is required for transactions entered into after February 28, 2000 and before January 1, 2005 (i) if the taxpayer has filed an amended Illinois income tax return which reverses the tax benefits of the potential tax avoidance transaction, or (ii) as a result of a federal audit the Internal Revenue Service has determined the tax treatment of the transaction and an Illinois amended return has been filed to reflect the federal treatment. (Source: P.A. 93-840, eff. 7-30-04.)