How do I update Schedule A line 6 smart worksheet iowa?

[countrylady3]

the computer will not let me update the schedule.

[JimW1]

You need to first enter your auto registration fees as a deduction on your federal return, using the "Federal Deductions" tab and the "Deductions & Credits" tab. Then, when you go through the Iowa portion of the interview, you will get a screen to enter the "Total Vehicle Registration Fees". The questions that follow will guide you through entering the information needed for Schedule A, line 6 Smart Worksheet.