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 When to Self-Insure Choosing to bear the financial burden of an adverse event is called self-insuring. Do you know what that entails? Mastering Mobile Lingo Do you understand these common mobile slang terms? Potential Income from an IRA Estimate your monthly and annual income from various IRA types.