Unfortunately,
federal taxes paid for any tax year -- including as a result of an audit --
cannot be deducted on a federal return.
If your state has a deduction for federal taxes paid, that will be
covered in TurboTax's state interview.
If these were state
taxes paid, please see the TurboTax FAQ "Can I deduct state or local
income tax on my federal return?" below for additional information.
https://ttlc.intuit.com/replies/3302371