In response to zoeiryo
This is not correct. Turbotax will just take the average for the year. So if you had a $800,000 mortgage and you put $0 for ending balance, it'll calculate it as you carried a $400,000 mortgage when adding up your total mortgages. If your refinanced loan was $800,000, then it'll calculate it as though you had $1,200,000 total mortgages for the year instead of $800,000.
The program is wrong. The only way I know how to fix it is to just manually adjust it. It shouldn't matter since the adjusted amount is what's put on the form. It's annoying and frustrating because it gives less return than you should get if you let it calculate it.
