This study was designed to investigate the tax revenue and Nigerian economic growth for period of three decade, using time series data from 1986 to 2015. The objective of this study was to examine the significant difference between the effects of oil and non oil tax revenue on economic growth in Nigeria. Data collected from Central Bank of Nigeria (CBN) Statistical Bulletin and National Bureau of Statistics (NBS).The study utilized both descriptive and Paired Sample T-test with the aid of Statistical Package for Social Science (SPSS) Version 23.The findings showed that, oil and non oil tax revenue were positive and strongly correlated with Real Gross Domestic Product (RGDP) with coefficient( r = .902, P< 0.05) and (r = .975, P< 0.05). The results also showed that, there was significant difference between the effects of oil and non oil tax revenue on RGDP as shown ( t29 = 11.424 , P< 0.05) and ( t29 = 10.968, P< 0.05). Findings also showed that, oil and non oil tax revenue contributed 7.7% and 2.5 % to RGDP from 1986-2015. This research work concluded that, there was significant difference between the effects of oil and non oil tax revenue on economic growth in Nigeria. There should be accountability and transparency from government officials on the management of revenue derived from taxation (oil and non oil) in Nigeria.
Keywords: Oil and Non Oil, Real Gross Domestic Product, Tax Revenue, economic growth
