Historical U.S. Federal Corporate Income Tax Rates & Brackets, 1909-2020. For tax years beginning after 2017, the Tax Cuts and Jobs Act (P.L. 115-97) replaced the graduated corporate tax structure with a flat 21% corporate tax rate.

What is the current US corporate tax rate?

Since January 1, 2018, the nominal federal corporate tax rate in the United States of America is a flat 21% due to the passage of the Tax Cuts and Jobs Act of 2017. State and local taxes and rules vary by jurisdiction, though many are based on federal concepts and definitions.

Do small businesses pay corporate taxes?

You might be surprised to learn that most small businesses don't pay the corporate rate for income tax. ... Owners include income from their small business in their personal taxes, so their income tax rates are calculated based on the business owner's total earnings.