2027 Arkansas Tax Deadlines

Last updated: July 29, 2026

Key Arkansas tax dates at a glance

This block is the single date reference for 2027 Arkansas filing, payment, and extension planning.

• April 15, 2027: First Arkansas estimated tax payment for calendar-year filers.
• June 15, 2027: Second Arkansas estimated tax payment.
• September 15, 2027: Third Arkansas estimated tax payment.
• January 18, 2028: Fourth Arkansas estimated tax payment.
• April 18, 2028: Arkansas Individual, C Corporation, S Corporation, and Partnership returns and payments due for calendar-year filers.
• October 16, 2028: Extended Arkansas S Corporation and Partnership returns due, file only.
• November 16, 2028: Extended Arkansas Individual and C Corporation returns due, file only.

When are Arkansas taxes due in 2027?

Arkansas's 2027 calendar-year Individual, C Corporation, S Corporation, and Partnership returns and payments are generally due April 18, 2028. Estimated payments run during the tax year, and filing extensions move eligible calendar-year returns into October or November 2028 by entity type.

When is the Arkansas C Corporation return due?

Arkansas C Corporations file and pay Arkansas corporate income tax by April 18, 2028. The approved 2027 draft uses Form AR1100CT for the calendar-year C Corporation filing.

• Complete Form AR1100CT.
• File electronically through Arkansas Taxpayer Access Point or approved software where available.
• Pay by the original due date of April 18, 2028.
• Postmark any mailed return by the due date if paper filing is allowed.

What are the Arkansas C Corporation extension rules?

The extended Arkansas C Corporation filing deadline is November 16, 2028. The extension is to file only; payment remains due on April 18, 2028. Keep federal Form 7004 with the extension workpapers when a federal corporate extension supports the Arkansas filing calendar.

When are Arkansas S Corporation and Partnership returns due?

Arkansas S Corporations and Partnerships file their state pass-through returns by April 18, 2028. Payment also remains tied to the original Arkansas due date.

Which Arkansas pass-through forms are required?

• Form AR1100S: Subchapter S Corporation Income Tax Return.
• Form AR1050: Arkansas Partnership Income Tax Return.
• Arkansas Schedule K-1 where required for owner reporting.

What are the Arkansas pass-through extension rules?

The extended Arkansas S Corporation and Partnership filing deadline is October 16, 2028. The extension is to file only; payment remains due on April 18, 2028.

When is the Arkansas Individual income tax return due?

Arkansas Individuals file and pay their Individual income tax returns by April 18, 2028. The approved 2027 draft uses the Arkansas resident and nonresident forms listed below.

Which Arkansas Individual forms are commonly used?

• Form AR1000F: Full-Year Resident Individual Income Tax Return.
• Form AR1000NR: Nonresident Individual Income Tax Return.
• Form AR1000ADJ: Amended Individual Income Tax Return.

What are the Arkansas Individual extension rules?

The extended Arkansas Individual filing deadline is November 16, 2028. The extension is to file only; payment remains due on April 18, 2028.

When are Arkansas estimated tax payments due?

Arkansas estimated payments generally apply when expected Arkansas income tax after withholding and credits is $1,000 or more.

• April 15, 2027: First Arkansas estimated tax payment for calendar-year filers.
• June 15, 2027: Second Arkansas estimated tax payment.
• September 15, 2027: Third Arkansas estimated tax payment.
• January 18, 2028: Fourth Arkansas estimated tax payment.

What Arkansas rules should tax professionals watch in 2027?

Beyond the core due dates, Arkansas has several state-specific rules worth tracking before 2027 filing work begins:

How does the Arkansas one-month extension rule work?

Arkansas honors an accepted federal extension, then sets the Arkansas extended filing date one month after the federal extended due date. That produces an Arkansas S Corporation and Partnership extension date of October 16, 2028, and an Arkansas C Corporation and Individual extension date of November 16, 2028 for calendar-year filers.

What rate and estimate rules should teams recheck?

Published 2025 DFA tables apply a 3.9% top Individual rate to income over $100,000, and Arkansas estimated payments generally apply when expected Arkansas income tax after withholding and credits is $1,000 or more. Reconfirm the final 2027 rate table and estimate-payment threshold when Arkansas publishes form-year guidance.

What should be watched for Arkansas disaster relief?

Arkansas may align state relief with federal disaster announcements. Affected taxpayers should confirm whether DFA has announced Arkansas-specific filing or payment relief before relying on a postponed date.

Tax-professional context: Several key considerations make Arkansas's tax landscape unique for 2027. Arkansas's progressive income tax system provides moderate tax rates, and the state offers various tax credits and deductions. Electronic filing requirements continue to expand, and disaster relief provisions may create exceptional planning opportunities.

Electronic filing requirements:

• C Corporations and pass-through entities should file electronically through Arkansas Taxpayer Access Point (ATAP).
• Individuals can use the Arkansas online system for free electronic filing.
• Business deductions can be processed more efficiently through electronic systems.
• Professional preparers must use approved software vendors.

Disaster relief considerations: Arkansas follows IRS disaster relief announcements and may provide extended deadlines for taxpayers affected by federally declared disasters. Affected taxpayers should monitor the Arkansas Department of Revenue announcements for specific relief measures and deadline extensions.

Progressive tax rates with current DFA tables topping at 3.9%: Arkansas provides a competitive tax structure with graduated rates based on income levels.

Military retirement pay exemption: Arkansas offers exemptions from military retirement pay for certain qualifying military retirees.

Capital gains deduction: Arkansas provides a capital gains deduction for certain long-term capital gains from sources within the state.

Business incentives and credits:

• InvestArk tax credits for qualifying investments.
• Research and development credits.
• Job creation incentives.
• Manufacturing equipment sales tax exemptions.

Retirement income considerations:

• Military retirement pay may be exempt from Arkansas income tax.
• Social Security benefits are generally exempt from Arkansas state income tax.
• Certain pension income may qualify for reduced taxation.

Which sources were used for this Arkansas deadline guide?

The sources below are placed above the CTA so Webflow editors and reviewers can verify the deadline logic before publishing.

• Arkansas DFA Individual deadlines and extensions.
• Arkansas DFA corporate FAQs.
• Arkansas DFA corporation income tax forms.
• Arkansas DFA Partnership and LLC forms.

Arkansas filing dates for extensions and payments

Arkansas returns often bring together corporate, pass-through, Individual, extension, and payment decisions across the same client base. Instead's AI-driven tax platform helps teams connect each state deadline to the client workflow that has to happen before it.

Use filing for return execution, workflows for recurring deadline tasks, and integrations to keep the Arkansas calendar connected to the systems your team already uses. Built for tax professionals who want a better tax operation system to manage compliance and advisory work for clients.