text: 1040 tax preparation help? where should i put box5, box6, and box 12b information into 1040? am i supposed to include medicare wages and tips into income (line 7) in 1040? what i am supposed to do for box 12b.(code=g) please somebody help!! you don't need to enter those amounts onto your 1040. the amount in box 12 is non-taxable, and boxes 3, 5, 6 and 7 are not related to your income tax.