Based on a comparison of 118 countries in 2017, Denmark ranked the highest in tax revenue as a share of GDP with 33.3% followed by Seychelles and Namibia. On the other end of the scale was United Arab Emirates with 0.067%, Kuwait with 1.38% and Iraq with 2.03%.
Average tax revenue as a share of GDP reached 15.4% in 2017 in the World according to the National Statistical Office. This is 6.71 % more than in the previous year and 2.70 % more than 10 years ago.
Historically, average tax revenue as a share of GDP reached an all time high of 15.9% in 2000 and an all time low of 13.3% in 2009. The average annual growth amounted to 0.315 % since 1972.
Data for more countries are available at Tax Revenue (As % of GDP) indicator page.
| Tax Revenue (As % of GDP) | Unit | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
| Belize | % | 22.6% | 22.5% | 23.4% | 25.1% | 24.5% | ||||||||||||||||
| Denmark | % | 32.8% | 33.4% | 33.8% | 36.5% | 33.9% | ||||||||||||||||
| Fiji | % | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | 23.0% | 23.2% | 23.6% | 24.6% | 25.5% | ||||||
| Greece | % | 22.1% | 23.9% | 24.0% | 24.6% | 25.1% | ||||||||||||||||
| Jamaica | % | 23.4% | 24.3% | 24.0% | 24.1% | 24.8% | ||||||||||||||||
| Lesotho | % | 27.9% | 35.2% | 33.6% | 33.9% | 31.7% | ||||||||||||||||
| Luxembourg | % | 24.6% | 25.7% | 25.9% | 25.7% | 25.3% | ||||||||||||||||
| Macao | % | 37.6% | 36.9% | 36.4% | 34.8% | 28.9% | ||||||||||||||||
| Malta | % | 26.1% | 26.4% | 26.8% | 26.9% | 25.6% | ||||||||||||||||
| Namibia | % | 30.0% | 32.9% | 31.5% | 33.6% | 32.5% | ||||||||||||||||
| New Zealand | % | ... | ... | ... | ... | 25.6% | 26.8% | 26.6% | 26.8% | 27.4% | ||||||||||||
| Seychelles | % | 31.5% | 30.4% | 28.1% | 30.1% | 29.6% | ... | |||||||||||||||
| South Africa | % | 25.2% | 25.6% | 26.0% | 26.5% | 27.3% | ||||||||||||||||
| Sweden | % | 26.5% | 26.0% | 26.2% | 26.3% | 27.0% | ||||||||||||||||
| Trinidad and Tobago | % | 25.6% | 26.4% | 26.1% | 27.1% | 27.2% | ... | ... |
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