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 Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. Split Annuity Strategy Here's one strategy that combines two different annuities to generate income and rebuild principal. How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive.