It might be, depending on the return. In my state, it is necessary to attach a full copy of the Federal return when there is a Schedule C to report, for example. Montana may or may not have a similar requirement, but TurboTax will handle it. If you are e-filing your Montana return, all of the required documents should e-file with it. If you are mailing the return, all of the required documents will print in the correct order for you to mail in the state return.
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