It is $39 for the TurboTax Deluxe online edition and there is an additional charge of $39 if you need a state tax return. If you chose to have the TurboTax account fees paid from the federal tax refund the service charge for that option is $39.
See this TurboTax support FAQ for removing fees - https://ttlc.intuit.com/community/charges-and-fees/help/what-can-i-do-to-reduce-my-fees/01/26051
