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 Password Protection Strategies Simple steps may help you foil hackers and protect your privacy. 3 Estate Challenges for Blended Families This article will help your clients with blended families think and prepare their estate strategy. Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement?