Arizona Income Tax Returns, Forms and Calculators Complete Your Arizona and IRS Taxes Now on eFile.com eFile All State Income Arizona Tax Forms Now Together With Your Federal Return. AZ Tax Forms For Back Taxes Including Extension and Amendments. How to File an Arizona Income Tax Return Tax Extension How to Prepare and File an Arizona Tax Extension. Should You File an Arizona Tax Return or Extension. Deadlines. Arizona Income Tax Payment Options. Online by Check. How To Pay Arizona Income Taxes Online or via Check. Options to Pay Income Taxes. Mailing Addresses for AZ Returns. Tax Day and Deadlines For Arizona Income Taxes Arizona State Income Deadlines. The Tax Day Is Almost Always The Same Date as the IRS Deadline. Extension Deadline and Amendment Information. Your Arizona Tax Refund Status: Find Out Where Your Money Is After Your Prepared and Filed Your Arizona Taxes, You Can Check Your Tax Refund Status Here. Arizona Will Post it Once Your Return Gets Accepted. Arizona Income Tax Forms By Tax Year. e-File Your Taxes. Income Tax Forms For The State Arizona. Forms That You Can e-File and Forms you Can Fill Out here on eFile.com. Prepare Now. Arizona Income Tax Brackets, Rates, Standard Deductions and Forms AZ Income Tax Brackets, Standard Deductions, and AZ Forms by Tax Year. Find the information you need for Arizona. File An Arizona State Tax Amendment Or Amend An AZ Return Steps To Amend or Change Your Arizona Income Tax Return. Complete Form 140x on eFile.com. Prepare and Mail Now. Calculate, Estimate Your Arizona Income Taxes by Tax Year The Arizona Tax Calculator Lets You Calculate Your State Taxes For the Tax Year. The Federal or IRS Taxes Are Listed. Arizona Income Tax Return Instructions for eFile.com Arizona Income Tax Return Instructions and How To Prepare on eFile.com. Residency Status, Forms and AZ Community State. TurboTax® is a registered trademark of Intuit, Inc. H&R Block® is a registered trademark of HRB Innovations, Inc.