51 Ill. 2d 452 - Mitchell v. Mahin’s Empirical Analysis
1972
Citation profile
44 state decisions
How this case has been cited
Cited by 44 later decisions — most recently January 2024 · most notably 77 Ill. 2d 423 - Roth v. Yackley (1979), 93 Ill. 2d 190 - In Re Marriage of Cohn (1982)
44 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Relationships
Applies 26 U.S.C. § 1221
Relies on Brushaber v. Union Pacific Railroad · Welch v. Henry · Lynch v. Hornby · 22 Ill. 2d 73 - Knierim v. Izzo · United States v. Hudson
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 44 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
““It seems clear from these cases that a tax measured by income is a tax upon realized gain. The fact that a portion of the gain may be attributable to increases in value of the income-producing items prior to the effective date of the [Illinois Income Tax] Act, or may be attributable to something done prior to such date, does not render the taxing statute retroactive so long as the gain or profit is not ‘realized’ until after such date.” ( 62 Ill. App. 3d at 453 , 379 N.E.2d at 102 , citing 51 Ill. 2d at 464 , 283 N.E.2d at 471 . (Davis, J., dissenting).)”
2 later decisions quote this exact passage · from the dissent““Legislative intention. Except as expressly provided by this Section, there shall be no modifications or limitations on the amounts of income, gain, loss or deduction taken into account in determining gross income, adjusted gross income or taxable income for federal income tax purposes for the taxable year, or in the amount of such items entering into the computation of base income and net income under this Act for such taxable year, whether in respect of property values as of August 1, 1969 or otherwise.” (Emphasis added.) Ill. Rev. Stat. 1983, ch. 120, par. 2—203(h).”
1 later decision quote this exact passage · from the dissent
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.