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 The Wild West of Data Theft Learn about cyber liability insurance in this entertaining video. Buying a Vacation Home? 5 Questions to Consider First You may be considering purchasing a vacation property, this can be an exciting milestone, but there are a few things to consider first. 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.