This paper focuses on the requirement to increase government revenue in Uganda and the ways various taxes have responded to changing
economic environment. Specifically, the paper looks at the tax reforms implemented by the government and how revenue yields of individual
taxes and the overall tax system have responded to changes in GDP (or proxy bases). We computed elasticity and buoyancy indexes for the pre –
and post-reform periods as well as the combined period (based on primary data from Uganda Revenue Authority; Uganda Bureau of Statistics;
Ministry of Finance, Planning and Economic Development; and Bank of Uganda). Empirical results suggest that tax reforms had a positive impact
on direct taxes and VAT/sales tax as evidence by increase in tax-to-income elasticity from 0.706 to 2.082 and 1.037 to 1.306 respectively. The
yield of import duties deteriorated after the reform as shown by a decline in tax-to-income elasticity index: from 1.256 (pre-reform) to 0.382
(post-reform).