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How to file Arkansas sales tax

2026 due dates, filing frequencies, form ET-1, and official filing resources.

State returnET-1
Monthly returns due20th of the month following the period
Filing frequenciesMonthly, Quarterly, Annual
Rules verifiedJuly 2, 2026

When is Arkansas sales tax due?

Monthly Arkansas sales tax returns are due the 20th of the month following the period. Quarterly returns are due the 20th of the month following the period (calendar quarters). When a due date lands on a weekend or federal holiday it moves to the next business day; the 2026 calendar on this page already applies that adjustment.

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Arkansas sales tax due dates for 2026

Every date below comes from the state's published deadline rule (dataset 2026.07.0) and is already moved to the next business day when it lands on a weekend or federal holiday. Your account's assigned filing frequency decides which table applies.

Monthly Arkansas sales tax due dates

Rule: 20th of the month following the period.

PeriodPeriod endsReturn due
January 2026Jan 31, 2026Feb 20, 2026
February 2026Feb 28, 2026Mar 20, 2026
March 2026Mar 31, 2026Apr 20, 2026
April 2026Apr 30, 2026May 20, 2026
May 2026May 31, 2026Jun 22, 2026 (moved: 2026-06-20 falls on a Saturday)
June 2026Jun 30, 2026Jul 20, 2026
July 2026Jul 31, 2026Aug 20, 2026
August 2026Aug 31, 2026Sep 21, 2026 (moved: 2026-09-20 falls on a Sunday)
September 2026Sep 30, 2026Oct 20, 2026
October 2026Oct 31, 2026Nov 20, 2026
November 2026Nov 30, 2026Dec 21, 2026 (moved: 2026-12-20 falls on a Sunday)
December 2026Dec 31, 2026Jan 20, 2027

Quarterly Arkansas sales tax due dates

Rule: 20th of the month following the period (calendar quarters). This cadence is flagged for manual review against the state source before relying on it.

PeriodPeriod endsReturn due
Q1 2026Mar 31, 2026Apr 20, 2026
Q2 2026Jun 30, 2026Jul 20, 2026
Q3 2026Sep 30, 2026Oct 20, 2026
Q4 2026Dec 31, 2026Jan 20, 2027
  • Arkansas DFA publishes the monthly 20th rule; the quarterly due-date wording was not found verbatim — verify.

Annual Arkansas sales tax due dates

Rule: January 20 following the calendar year. This cadence is flagged for manual review against the state source before relying on it.

PeriodPeriod endsReturn due
Calendar year 2026Dec 31, 2026Jan 20, 2027
  • Arkansas DFA publishes the monthly 20th rule; the annual due-date wording was not found verbatim — verify.
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Arkansas filing notes

  • Businesses averaging $200,000+/month net sales must make twice-monthly prepayments (~12th and ~24th) of 80% of state liability (info only).

Return and form

The principal repository-tracked return is ET-1. A paper channel exists, but the current form version and account eligibility still require confirmation.

Paper filing posture: accepted

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File Arkansas sales tax from reviewed data, not spreadsheets

Prophit.ai tracks every Arkansas due date above inside the return workspace, builds the period from your transaction data, and produces worksheet for portal entry and portal upload file that a reviewer approves before anything is submitted.

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Need every state at once? Download the 2026 sales tax filing calendar (CSV + ICS, all states, weekend/holiday-adjusted).

Workflow support does not by itself establish registration, filing authority, credentials, agency acceptance, or tax advice. Confirm your assigned filing frequency with the state.

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Arkansas sales tax filing questions

01When is Arkansas sales tax due?

Monthly Arkansas sales tax returns are due the 20th of the month following the period. Quarterly returns are due the 20th of the month following the period (calendar quarters). When a due date lands on a weekend or federal holiday it moves to the next business day; the 2026 calendar on this page already applies that adjustment.

02How often do you file sales tax in Arkansas?

Arkansas assigns a filing frequency to each account. The published cadences are monthly, quarterly and annual filing; the state assigns the frequency based on tax volume and notifies the account, so confirm the assigned basis before relying on a calendar.

03What form is used to file Arkansas sales tax?

The Arkansas return tracked here is ET-1. The principal repository-tracked return is ET-1. A paper channel exists, but the current form version and account eligibility still require confirmation.

04What happens if a Arkansas due date falls on a weekend or holiday?

The due date moves to the next business day. In 2026, 3 of the Arkansas due dates listed on this page are adjusted for a weekend or federal holiday; each adjusted date is marked in the calendar.

05Can Arkansas sales tax be filed on paper?

Paper filing posture tracked for Arkansas: accepted. The principal repository-tracked return is ET-1. A paper channel exists, but the current form version and account eligibility still require confirmation.

Reviewed and current as of August 22, 2026. Read the full Arkansas sales tax guide for rates, sourcing, products, exemptions, and marketplace rules.