As the dust settles from tax reform legislation passed at hyper speed at the end of 2017, industry analysts project that demand for jumbo purchase mortgages will take a hit. The Tax Cuts and Jobs Act reduced the amount of new debt eligible for the mortgage interest deduction. For purchase mortgages taken out on Dec. 15, 2017, and beyond, only $750,000 of debt will be eligible for the interest deduction. Previously, the limit was $1.0 million. Additionally, deductions from federal taxes for ...