Illinois Statutes

§ 1005 — Penalty for Underpayment of Tax

Illinois § 1005
JurisdictionIllinois
TopicGOVERNMENT
Ch. 35REVENUE
Act 35 ILCS 5/Illinois Income Tax Act.
Art.Article 10 - Penalties And Interest

This text of Illinois § 1005 (Penalty for Underpayment of Tax) is published on Counsel Stack Legal Research, covering Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
35 Ill. Comp. Stat. 1005 (2026).

Text

(a)In general. If any amount of tax required to be shown on a return prescribed by this Act is not paid on or before the date required for filing such return (determined without regard to any extension of time to file), a penalty shall be imposed in the manner and at the rate prescribed by the Uniform Penalty and Interest Act.
(b)Reportable transaction penalty. If a taxpayer has a reportable transaction understatement for any taxable year, there shall be added to the tax an amount equal to 20% of the amount of that understatement. This penalty shall be deemed assessed upon the assessment of the tax to which such penalty relates and shall be collected and paid on notice and demand in the same manner as the tax.
(1)Reportable transaction understatement. For purposes of this Section, the t

Free access — add to your briefcase to read the full text and ask questions with AI

Related

§ 301.6112-1
26 C.F.R. § 301.6112-1

Legislative History

(Source: P.A. 93-840, eff. 7-30-04.)

Nearby Sections

15
View on official source ↗

Cite This Page — Counsel Stack

Bluebook (online)
Illinois § 1005, Counsel Stack Legal Research, https://law.counselstack.com/statute/il/35/1005.