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 What Can You Buy With 529 Distributions? This article can be a helpful guide when begin preparing for education expenses. Preparing for the Expected You can plan ahead to protect yourself and your family against the financial consequences of deteriorating health. Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income.