Arizona Form Instructions are a set of documents provided by the Arizona Department of Revenue (ODOR) to help taxpayers complete their tax returns. There are several types of Arizona Form instructions available, including: Form 140, Individual Income Tax; Form 140A, Resident Personal Income Tax; Form 140PY, Part-Year Resident Personal Income Tax; Form 140NR, Nonresident Personal Income Tax; Form 301, Corporation Income Tax; Form 301A, S Corporation Income Tax; Form 309, Sales/Use Tax; and Form 323, Motor Vehicle Excise Tax. Each form provides detailed instructions on how to accurately fill out the form, including information on filing deadlines, tax credits, deductions, and more.