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 Ways to Manage Your Money and Taxes in Retirement Careful planning and tax-efficient drawdown strategies can help you enjoy the lifestyle you've dreamed of in retirement. Your Emergency Fund: How Much Is Enough? Having an emergency fund may help alleviate the stress and worry associated with a financial crisis. Why You Should Invest in Your 401(k) Did you know that your savings can compound over time?