Illinois Administrative Code
Title 86 - REVENUE
Part 100 - INCOME TAX
Subpart AA - DEFICIENCIES AND OVERPAYMENTS
- Section 100.9300 - Deficiencies and Overpayments (IITA Section 904)
- Section 100.9310 - Application of Tax Payments Within Unitary Business Groups (IITA Section 603)
- Section 100.9320 - Limitations on Notices of Deficiency (IITA Section 905)
- Section 100.9330 - Further Notices of Deficiency Restricted (IITA Section 906)
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