Income Tax Savings Because of income tax deductions, the government is subsidizing your purchase of a home. All of the interest and property taxes you pay in a given year can be deducted from your gross income to reduce your taxable income. For example, assume your initial loan balance is $150,000 with an interest rate of eight percent. During the first year you would pay $9969.27 in interest. If your first payment is January 1st, your taxable income would be almost $10,000 less – due to the IRS interest rate deduction. Property taxes are deductible, too. Whatever property taxes you pay in a given year may also be deducted from your gross income, lowering your tax obligation.