Where Do Workers Pay the Highest Income Tax?

March 25, 2015 Updated: March 25, 2015

When it comes to income tax, rates vary tremendously among countries and depend heavily on earnings, marital status, and many other factors. Which countries require workers to pay the most income tax? According to the OECD, a single person on an average salary with no children will have to pay the highest income tax rate in Belgium, amounting to 42.8 percent of his or her earnings.