Idaho B22A — (4/13) is a type of form used by Idaho residents to file their annual state income tax return. It is provided by the Idaho State Tax Commission. The form is available in both paper and electronic formats. There are four different types of Idaho B22A — (4/13): Form 1040EZ, Form 1040A, Form 1040, and Form 1040X. Form 1040EZ is the simplest form and is for taxpayers with no dependents, while Form 1040A is for taxpayers with dependents and can take advantage of certain tax credits. Form 1040 is the most comprehensive form and is for taxpayers with a variety of income sources and deductions. Finally, Form 1040X is an amended return that can be used if taxpayers need to make changes to previously filed tax forms.