Credit: Image by Steve Buissinne from Pixabay. What to know about 2021 capital gains tax rates Finance expert Dr. Jeff Jones answers some questions. April 29, 2021 by University CommunicationsCapital gains taxes can be confusing. It’s not just the federal tax rate that matters. States can also set their own tax rates, and some may have changes on the horizon. Dr. Jeff Jones, certified financial planner and department head of finance and general business at Missouri State University, provides answers to questions about this type of tax on The Motley Fool.