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 How to Make the Tax Code Work for You When you take the time to learn more about how it works, you may be able to put the tax code to work for you. Preparing for the Expected You can plan ahead to protect yourself and your family against the financial consequences of deteriorating health. Exploring Retirement Plans for Small Businesses Help small businesses make better retirement decisions for employees with this eye-catching and informative infographic.