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 4 Elements of an Estate Strategy Learn about the importance of having an estate strategy in this helpful and informative video. Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education. The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are.