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 Exploring Retirement Plans for Small Businesses Help small businesses make better retirement decisions for employees with this eye-catching and informative infographic. Asset Allocation Consider how your assets are allocated and if that allocation is consistent with your time frame and risk tolerance. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more.