Acquisition indebtedness means that any indebtedness that is incurred in acquiring, constructing, or substantially improving any qualified residence of the taxpayer is secured by such residence.
Interest on unsecured home debt is generally not deductible.
It is not uncommon for individuals to loan money to relatives to help them buy a home. In those situations, it is also not uncommon for a loan to be undocumented or documented with an unsecured note, and the unintended result that the homebuyer can’t claim a tax deduction for the interest paid to their helpful relative.
The tax code describes qualified residence interest as interest paid or accrued during the tax year on acquisition indebtedness or home equity indebtedness with respect to any qualified residence of the taxpayer. It also provides that the term “acquisition indebtedness” means any indebtedness that is incurred in acquiring, constructing, or substantially improving any qualified residence of the taxpayer, and is secured by such residence. There are also limits on the amount of debt and number of qualified residences that a taxpayer may have for purposes of claiming a home mortgage interest tax deduction, but those details are not covered in this article, which focuses on the requirement that the debt be secured.
Secured debt means a debt that is on the security of any instrument (such as a mortgage, deed of trust, or land contract):