The study examined value added tax and customs duties on revenue generation in Nigeria. Secondary data was sourced from Federal Inland Revenue Service (FIRS) ranging from 2000 to 2016. Autoregressive Distributed Lag (ARDL) and Granger causality tests were used as the estimation techniques. The findings of the study revealed that the F-statistics value was 2.883868 which is lesser than both the lower bound and the upper bound values of 3.79 and 4.85 respectively at the 5percent level of significance which implies that there is no long-run relationship among value-added tax, customs duties and revenue generation. It was equally revealed that there is no causality among value-added tax, customs duties, and revenue generation. The study concluded that value-added tax and customs duties no significant effect on revenue generation and there is no long-run relationship among value-added tax, customs duties and revenue generation in Nigeria during the study period. Thus, it is recommended that the fiscal policy should discourage tax avoidance by emulating measures for compliance of value added tax and customs duties
Keywords: Custom and Excise duties, Revenue Generation, Tax, Value Added Tax
