Why can't ProSeries come out with automatic Adjustment on Mortgage Interest for California Taxes since the Federal Worksheet computed the Federal limit and data are already available.  Federal limit is up to $750,000 loan while CA allows up to $1,000,000.  Taxpayer has over 1 million loan and therefore will get higher deduction for interest on the CA Taxes. As it is now,  you will have to manually figure out and input the deductible interest in the CA  Adjustment schedule.