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 Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls. Insuring Your Second Home There are unique risks of owning a second home and obtaining the proper coverage may protect you from financial risk. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is!