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 Timing Your Retirement This short video illustrates the importance of understanding sequence of returns risk. The Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic. Insuring Your Second Home There are unique risks of owning a second home and obtaining the proper coverage may protect you from financial risk.