Which Country Taxes its Citizens the Most?

Personal Income Tax (As % of GDP) (%), 2011 or latest
Economy | February 26, 2018
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Based on a comparison of 32 countries in 2011, Denmark ranked the highest in personal income tax as a share of GDP with 24.5% followed by Iceland and Finland. On the other end of the scale was Slovakia with 2.52%, Czech Republic with 3.70% and Turkey with 3.77%.

Data for more countries are available at Personal Income Tax (As % of GDP) indicator page.