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 The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. Retirement Accounts When You Change Your Job This video discusses issues related to your retirement accounts when you move on from your job. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more.