@marko6 I found the same issue. I spoke with a specialist who recommended using the desktop version but the same issue persists but allowed for easy diagnosis of the software problem.
The software sums the "avg loan balances" of the original and the refinanced loan, resulting in Turbo tax calculating your "avg load balance" as 2x your actual mortgage -- or at least in my instance it is 2x. Example, a $1 million dollar mortgage refinanced for $1 million is treated as a $2 million mortgage, resulting in only deductions for half or less of your actual interest paid.
