Illinois Code § 301
Illinois Code § 301. Reproduced from the official Illinois Compiled Statutes, with a citation summary, verification link, and related provisions.
§ 301.
General Rule. (a) Residents. All items of income or deduction which were taken into account in the computation of base income for the taxable year by a resident shall be allocated to this State. (b) Part-year residents. All items of income or deduction which were taken into account in the computation of base income for the taxable year by a part-year resident shall, for that part of the year the part-year resident was a resident of this State, be allocated to this State and, for the remaining part of the year, be allocated to this State only to the extent provided by Section 302, 303 or 304 (relating to compensation, nonbusiness income and business income, respectively). (c) Other persons. (1) In general. Any item of income or deduction which was taken into account in the computation of base income for the taxable year by any person other than a resident and which is referred to in Section 302, 303 or 304 (relating to compensation, nonbusiness income and business income, respectively) shall be allocated to this State only to the extent provided by such section. (2) Unspecified items. Any item of income or deduction which was taken into account in the computation of base income for the taxable year by any person other than a resident and which is not otherwise specifically allocated or apportioned pursuant to Section 302, 303 or 304 (including, without limitation, interest, dividends, items of income taken into account under the provisions of Sections 401 through 425 of the Internal Revenue Code, and benefit payments received by a beneficiary of a supplemental unemployment benefit trust which is referred to in Section 501(c)(17) of the Internal Revenue Code): (A) in the case of an individual, trust, or estate, shall not be allocated to this State; and (B) in the case of a corporation or a partnership, shall be allocated to this State if the taxpayer had its commercial domicile in this State at the time such item was paid, incurred or accrued. (Source: P.A. 90-491, eff. 1-1-98; 90-562, eff. 12-16-97.)
Source: official Illinois text · Last verified 2026-08-27
At a glance
- Citation: Illinois Compiled Statutes § 301
- Jurisdiction: Illinois
- Code: Illinois Compiled Statutes
- Text: transcribed from the official source (verify below)
Verify the text
Statute text is transcribed from the official Illinois Compiled Statutes. Confirm it against the primary source before relying on it:
Not legal advice. Verify against the official source and consult a licensed Illinois attorney.
Common questions
What is the source of Illinois Compiled Statutes § 301?
The text above is transcribed from the Illinois Compiled Statutes, the codified statutes of Illinois. The official publisher link appears under "Verify the text" on this page.
What subject does Illinois Compiled Statutes § 301 address?
It addresses the rule set out in the section text. Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.
Is Illinois Compiled Statutes § 301 still in force?
Statutes are amended, repealed, and renumbered every session. Confirm the current version at the official Illinois source before relying on this text.
Can this page be used as legal advice?
No. This is a reference transcription for research. Applying Illinois law to your facts requires a licensed Illinois attorney who can review the specifics.