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 Disability and Your Finances In the event of an unforeseen accident or illness, disability insurance may be a good way to protect your income and savings. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income.