You itemize deductions. • You claim tax credits other than the family income tax credit, the property tax credit or the credit for increased excise taxes.This form is furnished to give you a statement of actual settlement costs. For details, see Arizona Form 140ES. You must complete your federal return before you can start your Arizona return. What is the purpose of Form 433F? Form 433-F is used to obtain current financial information necessary for determining how a wage earner or self-employed. You can deduct the interest that you pay on your mortgage loan if the loan meets IRS mortgage requirements. It lays out each fee and dollar still due before you completely pay off your mortgage. Here's how it works.