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 The Economic Journey of Your Morning Coffee Few contemplate the complex journey that brought their coffee from farm to kitchen table. A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money. What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances.