35 ILCS 5/ Illinois Income Tax Act.
- Article 1 - Short Title And Construction
- Article 10 - Penalties And Interest
- Article 11 - Liens And Jeopardy Assessment
- Article 12 - Judicial Review
- Article 13 - Crimes
- Article 14 - Miscellaneous Provisions
- Article 15 - Definitions And Rules Of Interpretation
- Article 16 - Severability
- Article 17 - Effective Date
- Article 2 - Tax Imposed
- Article 3 - Allocation And Apportionment Of Base Income
- Article 4 - Accounting
- Article 5 - Records, Returns And Notices
- Article 6 - Payments
- Article 7 - Withholding Tax
- Article 8 - Declaration And Payment Of Estimated Tax
- Article 9 - Procedure And Administration