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 Understanding FDIC Insurance FDIC insurance was designed to protect your deposited funds, but do you know how? This article answers that question. Five Most Overlooked Tax Deductions Five overlooked tax deductions to help manage your tax bill. Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions.