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 The Economic Journey of Your Morning Coffee Few contemplate the complex journey that brought their coffee from farm to kitchen table. Keeping Up with the Joneses Lifestyle inflation can be the enemy of wealth building. What could happen if you invested instead of buying more stuff? Retirement and Quality of Life Asking the right questions about how you can save money for retirement without sacrificing your quality of life.