Financial duties of the Auditor include the preparation of the County's budget from material submitted by its departments and other agencies and issuing payment for all services, materials and payroll charged to the Madison County. 

The County Auditor is ex-officio clerk of the Board of Supervisors, and the following are some of the duties:

	Custodian of buildings subject to Board of Supervisors
	Computes tax levies, figures taxes and prepares tax books for Treasurer
	Keeps journal of the Board of Supervisors proceedings
	Compiles and computes agricultural land credits, homestead credits, military exemptions and apportions on tax lists
	Issues warrants for claims, files and records claims allowed by Supervisors
	Files plats, profiles, custodian of voting machines
	Clerk of official canvass of elections, receives and records elections returns and certifies same to Secretary of State
	Keeps tax account and cash account with County Treasurer showing all receipts and expenditures
	Keeps and records reports of county officers, township clerks and trustees
	Custodian of official bonds of all officers, except the Auditor, Board of Supervisors and Magistrates
	Assesses property omitted by Assessor and the County Board of Review
	Prepares and publishes financial report at end of each year
	Issues cigarette, beer and liquor licenses to dealers outside cities