Loan amount.

Indebtedness that can be counted for purposes of determining QPVLI includes indebtedness incurred to finance the purchase price of the APV, as well as items or amounts that are customarily financed in an APV purchase transaction and that are directly related to the purchased APV. For example, this includes vehicle service plans, extended warranties, sales tax, and vehicle-related fees. Interest on items and services not customarily financed in an APV purchase transaction and that are directly related to the purchased APV, such as liability insurance, a trailer, or amounts representing debt on a vehicle traded in as part of the purchase transaction for the APV (so-called negative equity), is not eligible for the deduction.