In South Korea, the Corporate Income tax rate is a tax collected from companies. Its amount is based on the net income companies obtain while exercising their business activity, normally during one business year. The benchmark we use refers to the top marginal corporate income tax rate for corporations with more than KRW 200 billion of taxable income a year. Revenues from the Corporate Tax Rate are an important source of income for the government of South Korea. This page provides - South Korea Corporate Tax Rate - actual values, historical data, forecast, chart, statistics, economic calendar and news. South Korea Corporate Tax Rate - actual data, historical chart and calendar of releases - was last updated on May of 2018.