If you are referring to the Refund Processing Service which deducts your TurboTax fees from your Federal refund, the charge for that service is $39.99.  You can avoid that fee by paying with a debit card or credit card.

What is Refund Processing Service?

https://ttlc.intuit.com/community/choosing-a-product/help/what-is-refund-processing-service/00/25889