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 Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Putting a Price Tag On Your Health Being healthy not only makes you feel good, it may also help you financially. Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards.