Not until the very end when you actually file. You either pay the fees with a credit card or from your refund. If you use Pay with Refund there is an extra Extra $40 Refund Processing Service charge (45 in California). So your Refund has to be big enough to cover the fees plus the extra service charge.
How to review your fees
https://ttlc.intuit.com/community/charges-and-fees/help/how-do-i-review-my-fees-in-turbotax-online/0...
