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? Schedule a Consultation Submit Message Your Message Has been Successfully Sent. Looking forward to speaking with you soon. Your Message Has Not been sent. Try again later. Related Content Tuning Your Social Security Benefit When should you take your Social Security benefit? What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance.