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US law
Illinois
Regulations
Title 86 — REVENUE
CHAPTER I: DEPARTMENT OF REVENUE
Part 100 — INCOME TAX
Subpart O
Illinois · Regulations
Subpart O
2 sections
2 sections
86 Ill. Adm. Code 100.5010
Place for Filing Returns: All Taxpayers (IITA Section 505)
86 Ill. Adm. Code 100.5020
Extensions of Time for Filing Returns: All Taxpayers (IITA Section 505)
Subpart O | Illinois Regulations | Justis AI