The move puts the state line with the federal tax deadline after the Internal Revenue Service moved its due date to May 17.
However, the deadline for first quarter tax year 2021 individual estimated tax payments remains April 15, and the extended deadline only includes individual returns.
The new deadline means taxpayers who file and pay after the previous April 15 deadline will not be assessed late filing or late payment penalties.
Additionally, the Arizona Department of Revenue said taxpayers have until May 17 to contribute to certified qualifying charitable organizations, qualifying foster care charitable organizations, school tuition organizations and public schools to claim the tax credits on their 2020 individual income tax return.
Taxpayers also may request additional time past May 17 by filing Arizona Form 204 or from receiving a federal extension from the IRS.