What are the timing implications of fiscal capacity?
Because of a time lag in the collection and publication of official statistics, the data is frequently 18 to 24 months old. Moreover, the formula is based on a 3-year moving average of the data used. That means that each year the formula is calculated, the most current year is added and the oldest year is dropped. Consequently, a current change in the tax base of any county will not be reflected in the most current fiscal capacity index.