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 Retirement Seen Through Your Eyes What's your vision of retirement? Women on the Rise Explore the growing influence women wield over the economy with this handy infographic. The Basics of Medicare Learn all about Medicare basics in this informative and insightful article.