The Arizona income tax 140 forms are for individuals to use to file their state taxes, advises the Arizona Department of Revenue. Taxpayers can download and print these forms from the Department of Revenue's website. Individuals can also use the fillable forms on the website and print the completed documents.
Single taxpayers whose Arizona adjusted gross income is $5,500 or more and married tax-payers whose Arizona adjusted gross income is $11,000 or more must file state income taxes, states the Arizona Department of Revenue. Individuals residing in the state for only part of the year and nonresidents who earn income in Arizona may also need to file state income taxes using form 140PY and form 140NR respectively.