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 Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. What To Do When Your Income Reaches 7 Figures Preserve your high net worth with these foundational tips. Consider These 3 Things Before Driving Off the Lot Here are 3 quick tips to keep in mind when buying or leasing your next vehicle.