File Arizona
State Business Tax Extension
Forms 120/165 EXT and 141AZ EXT

What Forms does Arizona require to apply for a Business
Tax Extension?

The State of Arizona generally provides an automatic extension to businesses that have filed a Form 7004 with the IRS for the current tax year if it was accepted.

If the business didn’t file a federal extension or was rejected, businesses must file a separate extension form with the State of Arizona.

• Forms 120/165 EXT - For businesses operating as Corporations, S-Corporations,
  and Partnerships.
• Form 141AZ EXT - For businesses operating as Fiduciaries.

When is the deadline to file Business Tax Extension with Arizona?

Arizona Corporate Tax Extension

• Form 120, Arizona Corporation Income Tax Return, is due by the 15th day of the 4th month after the taxable year ends. For Corporations that follow the Calendar tax year, the deadline is on April 15.
• To request an extension of the Form 120 deadline, corporations are required to file Form 120/165EXT on or before the original deadline of the business tax return.

Arizona S-Corporation Tax Extension

• Form 120S is due by the 15th day of the 3rd month after the S-corporation’s tax year ends. For S-Corporations following the Calendar tax year, March 15 is
  the deadline.
• S-corporations are required to file Form 120/165EXT on or before the original deadline of the business tax return in order to be granted an extension of time.

Arizona State Partnership Tax Extension

• The Arizona State Partnership Tax Form 165 is due by the 15th day of the 3rd month following the end of the taxable year. The deadline for partnerships operating on the calendar tax year is on March 15.
• Partnerships are required to file Form 120/165EXT on or before the original deadline of the business tax return in order to be granted an extension of time.

Arizona State Fiduciary Tax Extension

• Form 141AZ, Arizona Fiduciary Income Tax Return, is due by the 15th day of the 4th month after the end of the taxable year. The deadline for Fiduciaries operating on the calendar tax year is on
  April 15.
• Partnerships are required to file Form 141AZ on or before the original deadline of the business tax return in order to be granted an extension of time.

What information is required to file a Business Tax Extension
with Arizona?

• Business Name and Address
• EIN (Employer Identification Number)
• The date that your business’s tax year ends.
• Any estimated taxes due for the current tax year.

How to file Business Tax Extension with Arizona using ExpressExtension?

You can file an Arizona business tax extension using ExpressExtension in 3 simple steps:

• Choose Form 120/165EXT or 141AZ
• Fill in Form Details
• Download, print, and mail the extension form to the state using the
  provided address.

How do I pay my balance due to the state when filing an Arizona Business Tax Extension Form?

You can choose to pay your balance due along with your return by using any one of the following options:

• EFT - Electronic Funds Transfer (use www.AZTaxes.gov to make EFT payments)
• Online credit card payment (American Express, Discover, MasterCard, or
  Visa credit cards)
• You can also make EFT payments by ACH Credit.
• Check or money order - Make checks payable to the Arizona Department of Revenue. Include the taxpayer’s EIN on the front of the check or money order. Include the check or money order with the extension request.