Answer: $43,160
Step-by-step explanation:
The amount of investment interest that can be deducted is:
= Interest expense * Proportion of total income that is taxable
Municipal interest is not taxable so the proportion of total income that is taxable is:
= Taxable dividends and interest / Total income
= 520,000 / (520,000 + 104,000)
= 0.83
Amount of investment interest that is deductible:
= 52,000 * 0.83
= $43,160