A. At least thirty (30) days prior to the beginning of each fiscal year, a budget for each fund of the county for which a budget is required shall be completed by the county budget board. Each budget shall provide a complete financial plan for the budget year. The budget format shall be as prescribed by the State Auditor and Inspector. The format shall contain at least the following in tabular form for each fund, itemized by department and account within each fund:

B. The budget for each fund shall contain a budget summary. It shall also be accompanied by a budget message from the governing body which shall explain the budget and describe its important features.

C. The estimate of revenues in each fund for any budget year shall include probable income by source which the county is legally empowered to collect or receive at the time the budgets are adopted. The estimate shall be based upon a review and analysis of past and anticipated revenues of the county. Any portion of the budget of revenues to be derived from ad valorem property taxation shall not exceed the estimated amount of tax which is available for appropriation, as provided by the county excise board, or which can or must be raised as required by law. The budget of expenditures for each fund shall not exceed the estimated revenues for each fund. No more than ten percent (10%) of the total budget for any fund may be budgeted for miscellaneous purposes. Included in the budget of revenues or expenditures for any fund may be amounts transferred from or to another fund. Any such interfund transfer shall be shown as a transfer from the one fund and as a transfer to the other fund.

D. The county budget board shall determine the needs of the county for sinking fund purposes, pursuant to Section 431 of Title 62 and Section 28 of Article X of the Oklahoma Constitution, and include these requirements in the debt service fund budget for the budget year.