Where and how do I edit or delete business information (self employment income) which I have entered initially by mistake?

As you are using TurboTax Free; you can edit or delete your business income by following step by step below.

You can go directly to the Self-Employed section 

• Click Find (top right corner) --> type Self-Employment --> click Go
• Click Continue --> you will be presented with a list of your Self-Employment forms
• Click Edit (to view and modify) or Delete on the right side of the ones you want to delete. 

If you require further assistance please contact our phone support team or contact us directly on Facebook or Twitter. 

Thank you for using TurboTax.