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 Risk Tolerance: What’s Your Style? Learn about what risk tolerance really means in this helpful and insightful video. What If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. TIPS for Inflation If you are concerned about inflation and expect short-term interest rates may increase, TIPS could be worth considering.