TL;DR: The commercial property tax appeal process in Arkansas runs through the county board of equalization and, if unresolved, county court, with appeal applications due the same statewide deadline of the third Monday in August (August 17, 2026) in both Benton and Washington County. The stakes differ by city: Bentonville's 2026 total millage of 62.00 mills produces a 1.24% effective tax rate, versus 1.09% in Rogers and Springdale, 1.15% in Fayetteville, 1.10% county-wide in Benton County, and 1.03% county-wide in Washington County.
What Is the Commercial Property Tax Appeal Process in Arkansas?
Arkansas law sets a single statutory appeal path for every property owner, commercial or residential: a hearing before the county board of equalization, and, if the board's ruling doesn't resolve the dispute, an appeal to county court. That calendar is identical in Benton County and Washington County — the dates below are the same regardless of which county your property sits in. Benton County adds a practical first step on top of the statute: an informal review with the assessor's office, with a published 30-day-from-notice filing window, before the case ever reaches the equalization board. If your assessment notice just arrived and your property is in Benton County, start there — it's faster than a board hearing and lets you see the assessor's supporting data before you commit to a formal filing.
How Much Tax Exposure Is at Stake in Benton County?
Before appealing, it helps to know what a successful one is worth. Bentonville, in the Bentonville School District, carries a total 2026 millage of 62.00 mills (46.80 school + 5.50 city + 9.70 county) — the highest of the four largest Northwest Arkansas cities. Rogers, in the Rogers School District, carries 54.60 mills (41.60 school + 3.30 city + 9.70 county). Arkansas taxes only 20% of a commercial property's market value, so the effective rate — not the headline millage — is what lands on the bill. Bentonville's 62.00 mills works out to 62.00 / 1,000 x 0.20 = 1.24% of market value; Rogers' 54.60 mills works out to 54.60 / 1,000 x 0.20 = 1.09%. Benton County's own county-wide average, blending every city and school district in the county, is 55.04 mills, or 55.04 / 1,000 x 0.20 = 1.10%. If your Bentonville property is assessed at the same value as a comparable Rogers property, you're carrying a materially higher effective rate before you even ask whether the assessment itself is accurate — which is the question an appeal answers.
How Does Washington County's Rate Structure Compare?
Washington County runs its own assessor's office and hearing calendar, separate from Benton County, with a different rate structure. Fayetteville, in the Fayetteville School District, carries a total 2026 millage of 57.30 mills (45.00 school + 6.80 city + 5.50 county), which works out to 57.30 / 1,000 x 0.20 = 1.15% of market value. Springdale, in the Springdale School District, carries 54.40 mills (39.80 school + 8.10 city + 6.50 county), or 54.40 / 1,000 x 0.20 = 1.09%. Washington County's county-wide average is 51.54 mills — lower than Benton County's 55.04-mill average — which comes out to 51.54 / 1,000 x 0.20 = 1.03%. A landlord holding property in both Fayetteville and Springdale should quantify that spread before deciding which parcel to challenge first. A lower effective rate doesn't mean a lower risk of over-assessment; it only tells you what rate applies once the assessed value is set, which is the number an appeal actually contests.
What Is the Statutory Appeal Timeline in Arkansas?
Arkansas law sets the same clock in every county. Assessors value property through July 1. Equalization boards must begin hearings no later than the second Monday in August, and appeal applications are accepted through the third Monday in August — August 17, 2026 this year. Boards must issue a written ruling within 10 business days of the hearing. Escalation past the board is due by the second Monday in October, and county court must rule by November 15. None of those dates shift by county — the calendar comes from state statute, not the local assessor's office.
For an owner with buildings in both counties, that's useful: you're tracking one statewide calendar, not two. What varies locally is the step before that calendar starts — in Benton County, a published 30-day-from-notice window to request an informal review, ahead of the board hearing. That means one shared checklist for the statutory deadlines, plus one Benton-specific step to track separately.
What Should You Do With These Numbers?
- Mark August 17, 2026 on your calendar: the statutory deadline to file an equalization board appeal application, the same date in Benton County and Washington County.
- If your property is in Benton County, call the assessor's office as soon as your notice arrives to use the 30-day-from-notice informal-review window ahead of that board deadline; for Washington County, the published guidance confirms the statutory board deadline — contact the Washington County assessor's office to ask whether an informal review is available before filing.
- Use the effective-rate figures above to prioritize review: a Bentonville property (1.24% effective rate) or a Fayetteville property (1.15%) carries more exposure per dollar of assessed value than a Rogers or Springdale property (1.09% each), so start with the higher-rate parcel.
- If you're using Benton County's informal review, request the assessor's comparable-assessment file before that meeting, so you're arguing from the same data set they used.
- Prepare your evidence before the board hearing — boards must start no later than the second Monday in August — since a written ruling follows within 10 business days.
Frequently Asked Questions
What are the stages of a commercial property tax appeal in Arkansas?
A commercial property tax appeal in Arkansas moves through two statutory stages: a hearing before the county board of equalization, and, if unresolved, an appeal to county court, both governed by the same statutory calendar in every county under Arkansas law. Benton County adds a practical first step on top of that statute — an informal review with the assessor's office, filed within 30 days of the assessment notice — before a case reaches the equalization board.
Does the appeal deadline differ between Benton and Washington County?
No — the statutory appeal deadline is the same in both counties: appeal applications are due by the third Monday in August, August 17, 2026 for this year's cycle, under Arkansas law. What differs locally is process, not the deadline: Benton County and Washington County run separate assessor's offices and issue separate assessment notices, and Benton County adds its own published 30-day-from-notice window for requesting an informal review before the board hearing.
Why does the effective tax rate matter more than the millage rate in an appeal?
The effective rate matters because Arkansas taxes only 20% of a commercial property's assessed market value, so the headline millage overstates what lands on the bill. Bentonville's 62.00 mills (2026 collections) becomes a 1.24% effective rate (62.00 / 1,000 x 0.20), while Rogers' 54.60 mills becomes 1.09% (54.60 / 1,000 x 0.20) — the effective rate is what a successful reduction in assessed value is actually worth to you.
Should landlords with property in both Benton and Washington County handle appeals the same way?
No — while the two-stage statutory process (equalization board, then county court) is the same statewide, with Benton County's informal review as an added local step, Benton County's overall average effective rate is 1.10% and Washington County's is 1.03% (both 2026 collections), and each county runs its own assessor's office and hearing calendar. A landlord with parcels in both should treat each appeal as a separate filing with its own timeline and its own comparable-assessment evidence.
What happens if the county board of equalization denies my appeal?
If the county board of equalization denies a commercial property tax appeal in Arkansas, the next step is an appeal to county court, due by the second Monday in October, since the board's ruling is not the final word under state law. County court must then rule by November 15, and that deadline is the same in Benton County and Washington County.
Mapping which of your properties carries the most exposure — and which county's calendar to watch first — is easier with a second set of eyes on the notices. In a first conversation, Mason Capital Group will build a side-by-side effective-rate comparison across every commercial parcel you hold in Benton and Washington County, plus a checklist of what to request from each assessor's office before your review meeting. Call 479-925-3333 to get started.
About the author: Cameron Torabi, Principal Broker — Mason Capital Group. 30+ years of Northwest Arkansas real estate expertise; $2.4B+ in cumulative transaction activity.
Figures in this article are drawn from the Arkansas Department of Finance and Administration, Assessment Coordination Division, State of Arkansas 2025 Millage Report (published March 2026, for tax year 2026 collections). Effective-rate calculations also apply Arkansas's statutory 20% assessment ratio for real property. Appeal calendar dates are drawn from Arkansas's statutory property tax appeal calendar and the Benton County and Washington County assessor's office appeal pages.