You must report the amount on this line. It must be reported even if you used the standard deduction on the prior year's Iowa return. The federal refund must be included on this line because you benefited from being able to deduct federal taxes on the prior year's Iowa return, which reduced your Iowa taxable income for that year. The amount reported on this line should not exceed the total amount of any federal tax deduction taken on the prior year(s) Iowa return.