Arizona income tax return for multi-state corporations. Electronic filing of Arizona corporate income tax returns is required for the 2020 taxable year.All forms are in PDF format and are fillable (you can type in them). We recommend that you type the information so the documents are legible. The Arizona Corporation Commission website provides simple, fill-in-the-blank forms for articles of incorporation, with instructions. In Arizona, you would simply form either a for-profit corporation or a nonprofit corporation.