Every law which imposes, continues, or revives a tax, shall distinctly state the tax, and the object to which it is to be applied; and it shall not be sufficient to refer to any other law to fix such tax or object.
Iowa Const. art. VII, § 7 — under State Debts.
Iowa Const. art. VII, § 7
Tax Imposed Distinctly Stated
Every law which imposes, continues, or revives a tax, shall distinctly state the tax, and the object to which it is to be applied; and it shall not be sufficient to refer to any other law to fix such tax or object.