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 Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article. TIPS for Inflation If you are concerned about inflation and expect short-term interest rates may increase, TIPS could be worth considering. A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult.