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 Exploring the Federal Student Grant Program In this article, explore the benefits of the Federal Student Grant Program. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Diversification, Patience, and Consistency Three important factors when it comes to your financial life.