Home Equity is deductible in 2018 if it considered: Acquisition indebtedness is defined as “indebtedness that is secured by the residence and that is incurred in acquiring, constructing, or substantially improving any qualified residence of the taxpayer”. It seems likely, under this definition, if you took out a home equity loan to build an addition on your house, that would be classified as a “substantial improvement” and you would be able to continue to deduct the interest on that home equity loan in 2018. Where we need help from the IRS is further clarification on the definition of “substantial improvement”.
