Minn. Stat. § 383C.023

If the maximum rate of taxation for the various purposes mentioned in the budget, for which the county may levy taxes, together with the estimated amount of other county revenues for the ensuing year, and the unappropriated fund balance does not equal the total amount of the budget, the county shall reduce the several funds mentioned in the budget. The items for bonds, interest on bonds, salaries, and other items, the charges for which are fixed by law, shall remain at the full amount that the law requires.