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! Learn How to Stay Calm Amidst Market Volatility In this ebook, we outline how to stay the course through market ups and downs. Our tips will help you anticipate, rather than fear, market movement. First Name Last Name Email Address Thank you! Oops! Related Content How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Making a Charitable Gift Did you know that there are benefits and limitations when you decide to donate stock? Learn more about your options.