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 Message Thank you! Oops! Related Content What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement. A Cheat Sheet for Sending Your Kid to College Dropping off your child is loaded with emotions; here are a few tips for a smoother experience. The Cost of Medical Care Learn about the risks of not having health insurance in this informative article.