To file an extension for Arizona, follow one of the two options listed below:
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Apply for an Arizona extension (Form 204) by April 15.
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Use your federal extension (federal Form 4868) and file your Arizona return by the same due date as your federal return (October 15 after filing an extension).
Note: You don't have to attach a copy of your extension to your Arizona return, but make sure you answer
Yes to the question on the
Arizona General Information screen that asks if you filed a 2025 extension.