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 Retirement and Quality of Life Asking the right questions about how you can save money for retirement without sacrificing your quality of life. Women and Financial Strategies Most women don’t shy away from the day-to-day financial decisions, but some may be leaving their future to chance. Retirement Redefined Around the country, attitudes about retirement are shifting.