Idaho B22A — (10/05) is a form issued by the Idaho State Tax Commission. It is used to report income and calculate Idaho state income taxes. The form is applicable for individuals, estates, trusts, and corporations that have had income from Idaho sources in the period between October 1, 2005, and September 30, 2006. There are five different versions of Idaho B22A — (10/05), depending on the type of filer: (1) Individual Income Tax Return; (2) Estate or Trust Income Tax Return; (3) Business Corporation Income Tax Return; (4) S-Corporation Income Tax Return; and (5) Partnership Income Tax Return. Each form requires filers to report income, deductions, credits, and other information that will be used to calculate their Idaho state income tax.