Arkansas Business State Tax Extension | LLCs / Partnerships Filing Guide

Form AR1155-PET  ·  LLCs & Partnerships  ·  Business Filing Guide

Arkansas LLCs and partnerships are subject to state tax filing requirements, administered by the Arkansas Department of Revenue. Arkansas grants an automatic extension tied to an approved IRS extension, making the process simple for businesses that have already filed IRS Form 7004.

The original due date for the Arkansas LLCs / Partnerships return is April 15, 2026. File or remit full payment by this date to remain in good standing.

Arkansas automatically grants an extension to file, provided you have obtained an approved federal extension from the IRS by filing IRS Form 7004. With a valid IRS extension, the Arkansas extended deadline becomes October 15, 2026. No separate state extension form is required—the federal extension serves as your Arkansas extension.

The extension applies to filing only—it is not an extension to pay taxes owed. Any outstanding tax liability must be paid by the original due date of April 15, 2026 to avoid penalties and interest. Use the Arkansas | Online Tax Extension Payment to pay electronically. For mail-in payments, use AR1155-PET | Arkansas Pass-Through Entity Tax Request for Extension of Time for Filing Income Tax Returns and send to: Department of Finance and Administration Pass-Through Entity Tax P.O. Box 919 Little Rock, AR 72203-0919

• Failure to File: 5% of the amount of tax for each month or fraction of a month, up to a maximum of 35%.
• Failure to Pay: 5% of the amount of tax each month, up to a maximum of 35%.

• Estimate and pay your Arkansas business tax by April 15, 2026 to avoid interest and penalties.
• File IRS Form 7004 with the IRS to secure your federal extension, which Arkansas automatically honors.
• Use the state online payment portal for fast, convenient electronic payment.
• Set a reminder to file your completed Arkansas LLCs / Partnerships return by October 15, 2026.

Arkansas's business tax extension is straightforward once your federal extension is approved. Pay 100% of any tax due by April 15, 2026 and file your LLCs / Partnerships return by October 15, 2026.

Business tax returns are complex—a licensed CPA or Enrolled Agent can maximize deductions, ensure accurate calculations, and handle filing on your behalf. Here's how working with a TaxPro typically goes:

1. 1Get matched with a verified U.S.-based CPA or Enrolled Agent
2. 2Upload your business documents via secure drag-and-drop
3. 3Review and approve your return with upfront, transparent fees
4. 4Your TaxPro files your Arkansas return by October 15, 2026

Quick Reference Table