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 Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article. What You Need to Know About Social Security Every so often, you’ll hear about Social Security benefits running out. But is there truth to the fears, or is it all hype? And the Executor Is The right executor may help ensure the distribution of your assets is done with as little upheaval as possible.