Based on a comparison of 106 countries in 2024, Namibia ranked the highest in tax revenue as a share of GDP with 33.0% followed by Denmark and Lesotho. On the other end of the scale was Somalia with < 0.001%, United Arab Emirates with 0.627% and Ethiopia with 3.93%.
Data for more countries are available at Tax Revenue (As % of GDP) indicator page.
| Tax Revenue (As % of GDP) | Unit | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
| Austria | % | 25.8% | 25.7% | 25.8% | 24.7% | 26.0% | ||||||||||||||||
| Cyprus | % | 23.8% | 23.8% | 23.1% | 21.9% | 22.6% | ||||||||||||||||
| Denmark | % | 33.3% | 32.4% | 35.0% | 34.5% | 35.0% | ||||||||||||||||
| Finland | % | 20.9% | 21.0% | 20.8% | 20.0% | 20.8% | ||||||||||||||||
| Greece | % | 26.7% | 27.1% | 25.9% | 25.0% | 25.6% | ||||||||||||||||
| Italy | % | 24.7% | 24.2% | 24.7% | 24.8% | 24.9% | ||||||||||||||||
| Lesotho | % | 33.0% | 31.8% | 32.5% | 36.0% | 31.9% | ... | |||||||||||||||
| Luxembourg | % | 24.5% | 26.9% | 26.9% | 25.7% | 26.0% | ||||||||||||||||
| Namibia | % | 31.3% | 28.9% | 30.4% | 31.2% | 28.1% | ||||||||||||||||
| Netherlands | % | 23.1% | 23.0% | 23.6% | 23.9% | 24.3% | ||||||||||||||||
| New Zealand | % | 27.3% | 27.5% | 28.1% | 27.3% | 29.0% | ... | |||||||||||||||
| Norway | % | 22.3% | 23.3% | 23.3% | 21.3% | 25.5% | ||||||||||||||||
| South Africa | % | 24.8% | 24.9% | 24.9% | 23.3% | 25.9% | ... | |||||||||||||||
| Sweden | % | 28.4% | 28.1% | 27.5% | 26.8% | 27.4% | ... | |||||||||||||||
| United Kingdom | % | 25.6% | 25.5% | 25.1% | 24.8% | 26.4% |
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