suesayers
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11-01-2021
05:45 PM
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Idaho uses the same Form 40 for original and amended returns. In the upper right corner of the Form 40 is a check box if it is an amended return. On the next line you choose the reason for the amendment from a drop down list. Lines 58 through 61 on page 2 will calculate the amended refund or balance due. It will be a mail-in return.