The transformation of a health post into a health centre generates new services which mobilise different resources. The objective of this work is to propose a budgetary forecasting model for this specific type of case, one which is recurrent although seldom documented. As a preliminary step, the quarterly operational costs were determined, and the "complete costs method" (or the homogeneous sections method) was utilised for this purpose. In the second phase, the "pre-established costs method" was used to set the budget forecasts. The amount to be recovered by the health committee for a three month period of operation is estimated at 1,574,967 F CFA (equivalent to approximately 2,400 Euros), representing 42% of the total cost. The states assures the contribution of public funds to cover 54.2% of the cost, and the commune of Kanel furnishes 3.8% of the total cost, however only in the form of in-kind contributions or other material resources. The overall estimated budget for the year 2004 is estimated at 14,835,425 F CFA (about 22,615 Euros) of which 57.6% is expected to be received from the state.