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Deadline Coming Up for Taxpayers with Timely Tax Year 2021 Extension

October 7, 2022

Phoenix, AZ—The Arizona Department of Revenue (ADOR) reminds individual income taxpayers who received a 2021 calendar year tax filing extension--and have yet to file--have until Monday, October 17 to submit their tax returns. Corporate calendar year timely filers have until November 15. Partnership and S corporation returns were due September 15; fiduciary returns were due September 30.

Be mindful that paper income returns are considered timely based on the postmark date and electronic returns and payments may need to be submitted a couple days early to be considered timely.

A filing extension provides additional time to file from the due date; five months to file individual returns, seven months for corporate returns, and five and half months for fiduciary returns.

More than 255,000 individuals and 110,900 corporations received an extension for 2021 tax year returns from the state.

If you file a paper individual return, you can anticipate your refund in 8-10 weeks from the date you filed.

Filing Tips

  • ADOR advises taxpayers to double-check their tax returns to ensure no information is missing and recommends e-filing the Arizona return when e-filing the federal return.
  • Individual, corporate, and partnership e-filing is available and reduces the time to process and amount of paper needed to submit complex and lengthy returns.
  • If filing an individual income tax return by paper, check box 82F.
  • Include your whole social security number or employer identification number.
  • Make individual income tax payments on It does not require registration.
  • For businesses, filing electronically is a requirement (A.R.S. § 43-323(F))
  • Corporate Estimated Tax - Any corporation with $500 prior tax year liability.
  • Corporate income tax payments can be made on It no longer requires registration.
  • Check out ADOR’s tutorial for payment assistance.


Individual income tax filers needing additional aid may qualify for free tax preparation assistance:

  • Arizona Free File Alliance - Offers a free file program to Arizona taxpayers who meet specific criteria. Approximately 88,000 taxpayers used Free File software last year, saving fees, costly errors, and receiving their refunds quicker. Individuals must go through to ensure no fees are charged.
  • AARP Foundation Tax-Aide Program - Delivers free support to individuals 50 and older who cannot afford a tax preparation service to file federal and Arizona returns. Program details can be found here.
  • Volunteer Income Tax Assistance (VITA) - Provides free tax help to people who generally make $58,000 or less, persons with disabilities, and limited English-speaking taxpayers who need assistance preparing their tax returns. Taxpayers can acquire free preparation through VITA.


Taxpayers with questions can receive general information in real-time through Live Chat, or for specific account questions, contact the Customer Care Call Center at (602) 255-3381 or toll-free: (800) 352-4090.