Arkansas Estimated Tax Payments 2026: AR1000ES Due Dates, the $1,000 Rule, the New 3.7% Top Rate, and AR2210

Arkansas estimated tax payments for 2026 are due April 15, June 15, September 15, 2026, and January 15, 2027, and you must file the AR1000ES declaration when you expect your Arkansas tax, after credits and withholding, to reach $1,000. January 15, 2027 is the only installment still ahead. It is also the first one most people can size with the right rate: a May 2026 special session cut the top rate from 3.9% to 3.7% retroactive to January 1, and the Department of Finance and Administration (DFA) reissued the voucher worksheet to match.

Key takeaways:

• 2026 AR1000ES due dates: April 15, June 15, September 15, 2026, and January 15, 2027
• A declaration is required when estimated tax after credits and withholding is $1,000 or more; no penalty applies when the tax on your return is under $1,000
• Safe harbor: pay at least the smaller of 90% of your 2026 tax or 100% of your 2025 tax; Arkansas has no 110% rule
• The top rate is 3.7% for 2026 and later years (down from 3.9%), with a $2,470 standard deduction per taxpayer and a $29 personal credit
• Underestimates cost 10% a year, figured per quarter on Form AR2210; credit cards are not accepted for estimated payments

Save this cheat sheet — Arkansas's 2026 numbers in one image.

When Are Arkansas Estimated Tax Payments Due in 2026?

The 2026 AR1000ES vouchers carry the federal dates:

A payment counts as on time if it is postmarked by the next business day when a due date falls on a weekend or legal holiday. The IRS uses the same four dates, covered in our Form 1040-ES guide, and the estimated tax due-dates tool puts both calendars on one screen.

If you only crossed the threshold later in the year, the worksheet tells you how to split the amount: first liable on June 15, pay one-third on each remaining date; on September 15, half; on January 15, 2027, the full estimate at once. The AR2210 instructions also let you skip the fourth installment if you file your 2026 return and pay the full tax by January 31; in 2027 that date is a Sunday, so file a few days early rather than rely on the rollover.

Next year's installments fall on April 15, June 15, and September 15, 2027, and January 15, 2028, a Saturday, which moves the last one to the next business day.

Who Has to Pay State of Arkansas Estimated Taxes?

Every taxpayer under the Arkansas Income Tax Act must file a Declaration of Estimated Tax (Voucher 1) if they can reasonably expect their estimated tax to be more than $1,000, per the AR1000ES instructions. The worksheet makes the test concrete: line 8 is tax minus credits minus expected Arkansas withholding, and if it is $1,000 or more you file the declaration. The AR2210 instructions add a second condition: the requirement applies when withholding for the year does not equal 90% of the estimated tax.

That catches most freelancers with real profit, landlords, partners and S corporation shareholders whose income carries no withholding, and retirees whose taxable distributions exceed the exclusions below. The bar is high next to Missouri's estimated tax rules, which start at $100, so a part-time seller with a few thousand dollars of profit usually owes Arkansas nothing until April.

Building Jupid, I often talk with freelancers who first hear about state estimates when a penalty line shows up on their return.

What Is Arkansas's Income Tax Rate for 2026 and 2027?

Arkansas taxes 2026 income on a graduated schedule that tops out at 3.7%. Governor Sanders called a special session in late April, and HB 1001 and SB 1 were signed on May 6, 2026, as Tax Foundation reported. DFA's fiscal impact statement for SB 1 describes the cut as effective "for the 2026 and following tax years," so 2027 starts at 3.7% as well. The revised worksheet, dated May 6, 2026, shows the new schedule:

Net taxable income is Arkansas adjusted gross income minus the $2,470 standard deduction per taxpayer (or itemized deductions). The tax is then reduced by credits: $29 for single filers, $58 for joint returns and heads of household, plus $29 per dependent and $29 each for blind, deaf, or 65-and-older taxpayers.

One Arkansas difference matters for freelancers. The 2025 AR1000F instructions list the adjustments allowed on Form AR1000ADJ, including self-employed health insurance and SEP, SIMPLE, and Keogh contributions, but there is no line for the deductible half of self-employment tax. Arkansas AGI for a sole proprietor therefore usually starts from the full Schedule C profit.

Worked example. Farah is a single freelance web developer in Fayetteville with no Arkansas withholding. She expects $90,000 of 2026 Schedule C profit and no Arkansas adjustments.

On the October 2025 worksheet, at 3.9%, the same income produced $2,992 of tax before credits, so the special session lowered Farah's bill by about $122.

Arkansas Safe Harbor: 90% of 2026 or 100% of 2025

The AR2210 penalty is figured on a required annual payment equal to the smaller of:

Farah's 2025 Arkansas tax after credits was $2,500. Ninety percent of her 2026 estimate is $2,557, so the prior-year figure wins: $625 per installment, with about $341 left for April 15, 2027. Arkansas has no 110% tier, so high earners get the same 100% anchor. Payments and withholding are treated as made in four equal parts on the due dates, and taxpayers with uneven income can figure the penalty on an annualized basis with Form AR2210A.

Check What Arkansas Expects in January

How to Pay Arkansas Estimated Taxes Online or by Mail

The online route is ATAP, the Arkansas Taxpayer Access Point, at atap.arkansas.gov; DFA's individual income tax page links straight to its income tax payment screen. Card payments are a dead end for this tax: DFA's credit card page says the ACI Payments service "is not available for Estimated Tax Payments at this time," so plan on a bank payment through ATAP or a check.

By mail, attach a check or money order payable to Department of Finance and Administration, with your Social Security number written on it, to the matching voucher, round the amount to whole dollars, and send it to:

Department of Finance and Administration, Income Tax Section, P.O. Box 9941, Little Rock, AR 72203-9941

If you asked on your 2025 AR1000F to apply an overpayment to 2026, DFA credits it to the primary Social Security number on that return, so reduce your first voucher by that amount.

What Is the Arkansas Underpayment Penalty? AR2210 at 10%

If you do not pay at least 90% of the amount actually due by each quarterly date (or the prior-year figure, if smaller), Arkansas adds a penalty of 10% per annum on the underestimate. The AR2210 computes it quarter by quarter: days from the due date to the payment date, divided by 365, times 10%, times the underpayment.

Suppose Farah had paid nothing and sent the three missed $625 installments, $1,875 in all, on December 31, 2026:

Her January 15 payment of $625 is on time. Waiting until April 15, 2027 instead would add 105 more days of penalty on each missed amount. The federal estimated tax penalty runs separately on Form 2210, at the IRS rate.

The AR2210 instructions list the ways out: no penalty when the tax shown on your return is under $1,000; none when you had no 2025 liability, your 2025 tax year covered 12 months, and you lived in Arkansas all of 2025; and DFA may waive it after a casualty or disaster, or when you retired after age 62 or became disabled and the shortfall had reasonable cause. DFA publishes an individual income tax penalty waiver request form for those cases.

When Arkansas Estimated Payments Do NOT Apply

• Estimated tax under $1,000. After credits and withholding, a smaller balance needs no declaration
• Withholding covers 90%. Arkansas withholding from a W-2 job or pension that reaches 90% of the year's tax removes the requirement
• No 2025 liability. A full-year 2025 Arkansas resident with zero 2025 tax owes no 2026 underpayment penalty
• Farmers. If two-thirds of gross income comes from farming, you may declare and pay by the 15th day of the second month after year-end (February 15, 2027) or file and pay in full by the 15th day of the third month (March 15, 2027), later than the federal January 15 and March 1 dates
• Exempt retirement income. Social Security, VA benefits, and Railroad Retirement are exempt, military retirement is exempt, and the first $6,000 of employer-plan pensions and traditional IRA distributions after age 59½ is excluded, so many retirees never reach the $1,000 line

Arkansas Traps: The Mid-Year Rate Cut, PET Elections, and Missing SE Deduction

Vouchers built on the old worksheet. Anyone who sized their spring installments from the October 2025 AR1000ES used the 3.9% schedule. The May 2026 revision lowers the 2026 tax, and with it the 90% current-year option, so recompute before the January payment instead of copying the April amount.

Pass-Through Entity Tax elections. A partnership, S corporation, or LLC that elects Arkansas's PET pays tax on its own return at the highest individual rate, now 3.7%, with capital gains at half that rate, due April 15 for calendar-year filers, per DFA's PET page. Members still report the PET income on their individual return and back it out on Form AR-OI, so an owner's AR1000ES should cover only income the entity did not already pay on.

No half-SE-tax deduction. A federal estimate built on AGI after the self-employment tax deduction understates Arkansas income by several thousand dollars for a typical freelancer. Start the Arkansas worksheet from full profit. The Arkansas quarterly tax calculator adds the federal and self-employment tax side.

One Number for Three Worksheets: How Jupid Helps

The AR1000ES, the federal 1040-ES, and your self-employment tax all start from the same figure: what your business actually earned this year. Jupid connects to your business bank account and categorizes every transaction with 95.9% accuracy, so year-to-date profit is current when January's voucher comes due. Ask the AI accountant in WhatsApp or iMessage what you have netted since January or how much you have already sent to Little Rock, and the answer comes from your own transactions, in the chat. Try Jupid.

Sources

• 2026 AR1000ES, revised May 6, 2026 and the original October 2025 version: declaration rule, due dates, worksheet, rate schedules, credits, mailing address
• 2025 AR2210 instructions: 90% rule, 10% penalty computation, exceptions, January 31 option, farmer dates
• 2025 AR1000F and AR1000NR instructions: AR1000ADJ adjustments, standard deduction, retirement exclusions
• DFA fiscal impact statement, SB 1 (2026 special session) and Tax Foundation on the May 6, 2026 cut
• DFA: Individual Income Tax, Credit Card Payments, and Pass-through Entity Tax
• IRS: Form 1040-ES: the parallel federal requirement

This guide is for general educational purposes and does not constitute tax, legal, or accounting advice. Reviewed 2026-10-29 against the May 2026 AR1000ES worksheet, the 2025 AR2210 and AR1000F instructions, and DFA's published guidance; Arkansas computes final tax from its tax tables, which can differ from the estimate worksheet by a few dollars. For advice specific to your situation, consult a qualified tax professional or the Arkansas Department of Finance and Administration at dfa.arkansas.gov.