The determining factor here is the purpose of the cashout... If it was used to pay off your personal debt, then you cannot deduct the entire interest paid on the loan. If it was used for the home, then you can.
But don't worry, TurboTax will calculate the amount for you. The program will ask you:
- If this is an original loan or a refinance, and
- have you ever pulled cash our from the loan when you refinanced it
Then it will ask if the money was used on the home... if you select no, you will be able to enter how much of the loan proceeds were used to purchase, build or improve the home secured by the loan. You would simply reduce the loan amount by the cashout amount (if you, in fact, did NOT use the cash for that purpose).