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 Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you. Does Your Credit Score Affect Your Insurance Rates? Your credit score may influence how much you pay for auto and home insurance. When to Self-Insure Choosing to bear the financial burden of an adverse event is called self-insuring. Do you know what that entails?