Taxation Economic conditions Inflation (Finance) Corrupt practices Economic forecasting Philippines. Bureau of Internal Revenue Value-added tax Bangko Sentral ng Pilipinas Tax credits Overseas Filipino Workers Tax collection Tax evasion Philippines. Government Service Insurance System Philippines. Bureau of Customs Statistics Cigarettes Imports 2005 2006 Budget deficits Exports Officials and employees Philippines Prices Remittances 2004 2008 Corporations Export-import trade Foreign investments