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 Pay Yourself First It sounds simple, but paying yourself first can really pay off. The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. White Elephant Inheritance This article deals with how one might deal with a burdensome inheritance.