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 Charitable Giving: Smart from the Heart Do you have causes that you want to support with donations? The Wild West of Data Theft Learn about cyber liability insurance in this entertaining video. Understanding FDIC Insurance FDIC insurance was designed to protect your deposited funds, but do you know how? This article answers that question.