Answer:
Randy can deduct $33,900 interest expense as an itemized deduction.
Step-by-step explanation:
a) Data and Calculations:
Mortgage interest on residence = $29,800
Mortgage loan = $74,000
Current price of house = $524,000
Car loan interest = $3,100
Investment (margin) interest = $4,100
Deductible interest expenses:
Mortgage interest on residence = $29,800
Investment (margin) interest = 4,100
Total deductible interest = $33,900
b) The car loan interest that Randy incurred is not tax-deductible unless the car is used for his business. Otherwise, only the portion used for business is deductible. It is assumed that the car loan interest was incurred for private use and not business use. Therefore, it is not deductible.