. A taxpayer paid interest as follows: $100 on a personal credit card $200 on funds borrowed in order to purchase $6,000 in tax-exempt securities $500 interest on a personal car loan. The car is not used for business $10,000 on a home mortgage at is the amount of deductible interest? A. $17,400 B. $10,600 C. $10,000 D. $10,800 . A taxpayer paid interest as follows: $100 on a personal credit card $200 on funds borrowed in order to purchase $6,000 in tax-exempt securities $500 interest on a personal car loan. The car is not used for business $10,000 on a home mortgage at is the amount of deductible interest? A. $17,400 B. $10,600 C. $10,000 D. $10,800