Received fed refund but it is less than forecasted, after all the fees, by $8.28. where's my refund reported the same amt as turbotax. What is this additional fee for?

Most likely that small amount is sales tax charged by your state for the purchase of the software.

How can I see my TurboTax  fees?   

https://ttlc.intuit.com/questions/2565973-how-do-i-review-my-fees-in-turbotax-online

Yep ... state sales taxes is the most likely culprit.

Thank you. It would have been nice if, along with the rest of the fees, they listed, "plus any state tax" or something like that. I appreciate your response.

Thank you for responding.