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 Behavioral Finance An amusing and whimsical look at behavioral finance best practices for investors. New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS. The Cost of Medical Care Learn about the risks of not having health insurance in this informative article.