There are several Schedule AR's that could potentially be included in your filing for state. Most are supported in TurboTax but you can refer to the following link for more information as to the forms available within the program.
Please see the attached link for instructions on where to mail your Arkansas return to and what needs to be included with your return.
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Schedule AR is a tax form not related to Arkansas. I live in Wisconsin. My return is rejected because the state requires schedule AR to be filled out and I can not find it anywhere on Turbotax. I have had to file it by paper because no one could give me any direction.