Arizona state tax extension guide
ARIZONA · STATE TAX EXTENSION GUIDE

Arizona Personal Tax Extension 2026: 2025 Tax-Year Filing Guide

Individual Income Tax · Arizona Form 140 · Form 140A · Form 140NR

This guide explains the Arizona personal tax extension for the 2025 tax year. Arizona generally grants a six-month filing extension to October 15, 2026, but payment is still due by April 15, 2026. For federal filing details, see our federal tax extension resources.

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Arizona Extension Deadlines
Individual return
AZ Extension Status
Automatic
Payment / extension form
Form 204
Online Payment
AZTaxes.gov
Important

Arizona (AL) gives most individuals an automatic filing extension. File by October 15, 2026, and pay any Arizona tax owed by April 15, 2026.

Last updated: September 12, 2026
Individual filing

Arizona Personal Tax Extension: Filing Details

Arizona generally grants an automatic six-month extension for individual income tax returns. A timely Form 204, valid federal extension, or electronic Arizona extension payment supports the extended filing deadline of October 15, 2026.

Extended Deadline
Oct. 15, 2026
Automatic six-month extension
Extension Checklist
Individual Income Tax
Original deadline
April 15, 2026
Extended deadline
October 15, 2026
Arizona return
Extension method
Use Arizona Form 204 to request a state filing extension, unless you are filing under a valid federal extension or making an Arizona extension payment electronically.
Payment
Pay Arizona tax by April 15, 2026. Use Form 204 when submitting a payment by check or money order.

The extension applies to filing time only. Pay any balance due by April 15 to limit penalties and interest.

At a glance

Quick Reference: Deadlines and Forms

Use this summary to confirm Arizona personal filing deadlines, return forms, and payment requirements.

Original deadline
April 15, 2026
2025 Arizona return
Extended deadline
Oct. 15, 2026
Automatic extension
Return forms: Form 140, Form 140A, Form 140NR
Payment
An extension of time to file does not extend the time to pay.
Common questions

Frequently Asked Questions

Answers about Arizona personal tax extensions. Confirm current rules with the Arizona Department of Revenue (ADOR).

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