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 Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. Year-End Charitable Gifting and You This article may help you maximize the benefits of your donation for your chosen charity. The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money?