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 Good Health is Good Business Good employee health can be great for the company’s bottom line. How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared?