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 Reviewing Your Life Insurance Needs Learn how the review process works and how it may help you better understand your Life Insurance. Four Reasons Millennials Need an Estate Strategy Estate strategies for millennials may sound like less of a concern than retirement, but young adults should prepare now. Weighing the Benefits of Prepaid Debit Cards It's important to understand the pros and cons when considering a prepaid debit card.