How would homeowners fare under the proposed tax law?

The Tax Cuts and Jobs Act would make several changes. For example, it retains the mortgage interest deduction (subject to a $1 million cap) for mortgages that already exist on Nov. 2, 2017, as well as for those who entered into a binding written contract before that date. However, for newly purchased homes, the deduction would be limited to $500,000 and taxpayers would be limited to one qualified residence. The bill would also retain the property tax deduction, subject to a $10,000 maximum.