Witte Brothers is an intersate trucking company. After an audit, under protest, Witte paid Illinois for “pass-through” miles [distance driven in Illinois without picking up or delivering goods].
Witte sued Illinois for reimbursement of the taxes. The trial court ruled that the Illinois Income Tax Act did not allow the State to tax truckers pass-through miles. So Illinois appealed.
Among other things, Witte argued in the appellate court that taxing pass-through miles violated the Commerce Clause of the U.S. Constitution. But Witte did not raise this argument in the trial court, nor allege it as a separate count in its complaint. So the First District Illinois Appellate Court refused to consider the argument.