The valuation base is a snapshot at a point in time (end February) and is used to calculate the additional rate (rate in the rand) for the following financial year. However, municipal valuations can change within a financial year due to supplementary valuations, Valuation Court rulings, sub-divisions, rezoning or other technical adjustments. Should the valuation base decrease or increase substantially, the City must inform the CID in order to assess the potential impact on the CID’s additional rate and/or budget.