That is the $40 service charge you pay when using the totally optional Pay with Refund to have your TurboTax account fees paid from the federal tax refund.
To remove the Pay with Refund option and pay the TurboTax account fees with a credit card and NO service charge see this TurboTax support FAQ - https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-account-billing/remove-pay-refund-fees-turbotax-online-change/L7UxC6ZZp_US_en_US?uid=lsxfh5l1
If you can pay your TurboTax fees before you file----pay using a credit or debit card---or you will end up paying an EXTRA $40 refund processing fee to a third party bank. The third party bank receives your refund from the IRS, takes out what you owe to TurboTax and a $40 fee for themselves, and then sends the rest of the refund to you.
What is Refund Processing Service?
How can I see my TurboTax fees?
https://ttlc.intuit.com/questions/2565973-how-do-i-review-my-fees-in-turbotax-online
REMOVE REFUND PROCESSING FEE
There is a $40 processing fee if you decide to have your fees paid from your refund.