Arkansas State Tax Guide
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Arkansas State Tax Guide
Extension rules
Extension type: Automatic with Federal · Form AR1055-IT (Individual Extension of Time to File Request)
If you file an automatic federal tax extension (IRS Form 4868) and it is accepted, Arkansas automatically honors it as a valid state extension. • You do not need to send a copy of Form 4868 to the state. You may file Arkansas Form AR1055-IT if: • You want an Arkansas-only extension, or • You need to submit an extension payment directly to Arkansas. • What you must do: When you eventually file your actual Arkansas tax return, you must check the box on the front page of Form AR1000F / AR1000NR indicating that you filed a federal extension. This activates your extended November 15 state deadline. If you are not filing a federal extension but still need extra time to complete your Arkansas state paperwork, you must file a state-specific request. • Form to use: Form AR1055-IT (Individual Extension of Time to File Request). • How to file it: You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15. • Note: Inability to pay your tax bill is explicitly not an accepted reason for a state-only extension. You must state a valid reason on the form for needing more time to compile paperwork
If you owe tax: You may file Arkansas Form AR1055-IT if: • You want an Arkansas-only extension, or • You need to submit an extension payment directly to Arkansas. To keep your extension valid and avoid massive financial penalties, any tax you owe must be paid by April 15.
If you owe $0: If you file an automatic federal tax extension (IRS Form 4868) and it is accepted, Arkansas automatically honors it as a valid state extension. • You do not need to send a copy of Form 4868 to the state.
How to request
- Online: You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15.
- Mail: You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15.
To keep your extension valid and avoid massive financial penalties, any tax you owe must be paid by April 15. If you do not pay your estimated tax liability by the original April 15 deadline, Arkansas will hit you with Interest & Failure-to-Pay Penalities.
Arkansas Key deadlines (tax year 2025, return filed in 2026)
- Filing deadline: Apr 15, 2026
- Extension request deadline: Apr 15, 2026 — If you are not filing a federal extension but still need extra time to complete your Arkansas state paperwork, you must file a state-specific request. • Form to use: Form AR1055-IT (Individual Extension of Time to File Request). • How to file it: You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15. • Note: Inability to pay your tax bill is explicitly not an accepted reason for a state-only extension. You must state a valid reason on the form for needing more time to compile paperwork
- Extended return deadline: Nov 15, 2026 (7-month extension)
- Payment deadline: Apr 15, 2026
- Differs from federal: Yes — Extended Due Date (with Federal Extension): November 15 (Note: This is a full month later than the federal extended deadline of October 15!)
Income tax you owe was still due by April 15, 2026. If you do not pay by the original due date, Arkansas may assess: • Interest on the unpaid balance, and • A failure-to-pay penalty.
Estimated payments
- Apr 15, 2026
- Jun 15, 2026
- Sep 15, 2026
- Jan 15, 2027
Original Due Date: April 15 Extended Due Date (with Federal Extension): November 15 (Note: This is a full month later than the federal extended deadline of October 15!) Extended Due Date (State-Only Extension): Up to 120 days from April 15 (typically around August 15).
Payment rules
To keep your extension valid and avoid massive financial penalties, any tax you owe must be paid by April 15. If you do not pay your estimated tax liability by the original April 15 deadline, Arkansas will hit you with Interest & Failure-to-Pay Penalities.
Official payment portal
Arkansas Taxpayer Access Point (ATAP)
Payment options
- Arkansas Taxpayer Access Point (ATAP)
- Payment plan (ATAP)
- Form AR1055-IT (Individual Extension of Time to File Request)
Payment plan availability
Available: Yes
Use the Arkansas Taxpayer Access Point (ATAP) portal.
Filing forms
Regular filing
- Form AR1000F / AR1000NR - Arkansas tax return
Extension
- Form AR1055-IT - Individual Extension of Time to File Request
Arkansas Refund Tracking
Arkansas Taxpayer Access Point (ATAP)
Processing time: Check ATAP for current status
Do I need to file?
If you file an automatic federal tax extension (IRS Form 4868) and it is accepted, Arkansas automatically honors it as a valid state extension. • You do not need to send a copy of Form 4868 to the state. You may file Arkansas Form AR1055-IT if: • You want an Arkansas-only extension, or • You need to submit an extension payment directly to Arkansas. • What you must do: When you eventually file your actual Arkansas tax return, you must check the box on the front page of Form AR1000F / AR1000NR indicating that you filed a federal extension. This activates your extended November 15 state deadline. If you are not filing a federal extension but still need extra time to complete your Arkansas state paperwork, you must file a state-specific request. • Form to use: Form AR1055-IT (Individual Extension of Time to File Request). • How to file it: You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15. • Note: Inability to pay your tax bill is explicitly not an accepted reason for a state-only extension. You must state a valid reason on the form for needing more time to compile paperwork
- Residents: When you eventually file your actual Arkansas tax return, you must check the box on the front page of Form AR1000F / AR1000NR indicating that you filed a federal extension. This activates your extended November 15 state deadline.
- Part-year residents: When you eventually file your actual Arkansas tax return, you must check the box on the front page of Form AR1000F / AR1000NR indicating that you filed a federal extension. This activates your extended November 15 state deadline.
- Nonresidents: When you eventually file your actual Arkansas tax return, you must check the box on the front page of Form AR1000F / AR1000NR indicating that you filed a federal extension. This activates your extended November 15 state deadline.
Filing methods
Online filing
You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15.
Mail filing
You can e-file it through commercial tax software, submit it online through the Arkansas Taxpayer Access Point (ATAP), or mail it in. It must be submitted/postmarked on or before April 15.
