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 Question Thank you! Oops! Related Content Building Your Legacy A four-step framework for building a personal legacy. What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances. Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation.