Wisconsin Constitution
Article VIII - Finance
Section 5 - Annual tax levy to equal expenses.

The legislature shall provide for an annual tax sufficient to defray the estimated expenses of the state for each year; and whenever the expenses of any year shall exceed the income, the legislature shall provide for levying a tax for the ensuing year, sufficient, with other sources of income, to pay the deficiency as well as the estimated expenses of such ensuing year.

Deficit reported in financial statements prepared in accordance with generally accepted accounting principles would not violate this section. 74 Atty. Gen. 202.