Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content The Value of Insuring Against Life’s Risks Building wealth requires protection from the forces of wealth destruction. Retirement Redefined Around the country, attitudes about retirement are shifting. Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more.