2024 Arizona Income Tax Filing Deadlines

Arizona State Income Taxes for current Tax Year can be prepared and e-Filed now along with an IRS or Federal Income Tax Return (or you can learn how to only prepare and eFile an Arizona state return). Find IRS or Federal Tax Return deadline details.

Tax Deadlines and the Arizona Tax Day

The majority of deadlines listed here are for Tax Year 2023. Some apply to upcoming Tax Years and some are IRS or Federal deadlines.

Deadline
Type
Description
Prepare, eFile, Download
AZ + IRS Tax Return
April 15, 2024
Tax Year 2023
Income Tax Return
Prepare and e-File an IRS (Due Date April 15, 2024) and Arizona State Income Tax Return (Due Date April 15, 2024) until October 15, 2024. - eFileIT
April 15, 2024
2023 Income Tax Extension
October 15, 2024
Tax Year 2023
Income Tax Return after the April 15, 2024 Arizona Tax Extension
Last day to e-File a 2023 Arizona State Income Tax Return for Tax Extension Filers and late eFilers. You can only e-File (to file by paper see below) Arizona Income Tax Return together with an IRS Tax Return. - eFileIT
October 15, 2024 via mail-in Forms.
Forms incl. Mailing Address are listed below.
Tax Year 2023
Income Tax Return after April 15, 2024 Arizona Tax Extension
Deadline for taxpayers who got an AZ Tax Extension to file their Arizona Income Tax Return by mail-in Forms - the Forms incl. mailing addresses are listed below - is Oct. 15, 2024. (Optionally, the eFileIT deadline is Oct. 15, 2024). Instructions on how to only prepare- without the IRS return - prepare and file an Arizona State Income Tax Return on eFile.com.
Tax Amendment for all Tax Years
IRS Due Dates
IRS Tax Return, Extension, Amendment Deadlines
2024, 2025, etc.
Other State Tax Return, Extension, Amendment Deadlines
Select respective State Tax Return Deadlines.
2024, 2025, etc.
IRS Federal Income Tax Return, Amendment, Extension Deadlines
April 15, 2026
2022 Arizona Income Tax Return Refund.
IRS Tax Return Refund Claim Deadline
The last day to file - you will not face late filing penalties - and claim your 2022 Arizona Income Tax Return Refund. This deadline does not apply if you owe 2022 Income Taxes.
April 15, 2027
2023 Arizona Income Tax Return Refund.
IRS Tax Return Refund Claim Deadline
The last day to file - you will not face late filing penalties - and claim your 2023 Arizona Income Tax Return Refund. This deadline does not apply if you owe 2023 Income Taxes.
April 15, 2028
2024 Arizona Income Tax Return Refund.
IRS Tax Return Refund Claim Deadline
The last day to file - you will not face late filing penalties - and claim your 2024 Arizona Income Tax Return Refund. This deadline does not apply if you owe 2024 Income Taxes.

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