This Selected Issues paper examines tax policy and administrative changes in Eastern African Community (EAC) countries with a view to benchmark Kenya’s experience and draw lessons for future tax reforms. Using granular data from a new IMF database on tax measures announced during 1988–2022, it concludes that EAC policymakers frequently changed their tax system and administrations by announcing tax packages that typically consisted of measures to narrow the tax base and strengthen tax administrative practices. Kenya appeared to be one of the EAC countries that most frequently announced and introduced such changes, which might have played a significant role in explaining the reduction in the tax-to-gross domestic product ratio experienced by the country since 2014. The conclusions of this note are subject to caveats, as the frequency of tax measures is not an indicator of the actual revenue impact of such measures. Looking at the frequency of changes, however, can help identify reform episodes providing a sense of their duration and comprehensiveness.