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 Estate Management Checklist Is your estate in order? This short quiz may help you assess your overall strategy. How Retirement Spending Changes With Time It can be difficult for clients to imagine how much they’ll spend in retirement. This short, insightful article is useful. Catch-Up Contributions Workers 50+ may make contributions to their qualified retirement plans above the limits imposed on younger workers.