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 Realities Many pre-retirees can become focused on the “ideal” retirement, but turning that dream into a reality can be tricky. The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Helpful Retirement Strategies for Women Learn how to address the challenges that women face when planning for retirement.