@ kurt.heck
Hopefully, you haven't yet filed, in which case you should be able to remove it.
If you have already efiled, then your chances are less, depending on the results of the efile.
Have you already efiled? If so, at the Tax Home is the efile status showing pending, accepted, or rejected? If you already efiled, and it's subsequently rejected, then you may be able to remove that payment option.
Are you in California or a non-California state?
Since you said $40, the following is the method for non-California states:
If you have not yet efiled:
I don't know exactly what screen you are referring to.
When you went to the FILE tab, did you actually proceed on to the Just...more step screen? That's the screen that should have the "Revisit" link next to the "pay out of refund" choice.
See this FAQ for detailed instructions:
FAQ: How do I remove "pay with my refund" fees in Online TurboTax? (states other than California)
https://ttlc.intuit.com/community/downgrading/help/how-do-i-remove-pay-with-my-refund-fees-in-turbot...
