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 Question Thank you! Oops! Related Content Pay Yourself First It sounds simple, but paying yourself first can really pay off. Year-End Charitable Gifting and You This article may help you maximize the benefits of your donation for your chosen charity. The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics.