Arkansas Workers' Compensation Premium Calculator

The Arkansas Workers’ Compensation Premium Calculator estimates the annual cost of workers’ comp insurance for an Arkansas employer. Workers’ comp pricing follows a well-defined formula built on three inputs: the class-code rate (cost per $100 of payroll for the type of work), your annual payroll, and your experience modifier (a multiplier reflecting your claims history). Arkansas uses private carriers rather than a monopolistic state fund, with rates based on filed loss costs.

How the workers’ comp premium is calculated

Premiums are priced per $100 of payroll, because payroll is the best available proxy for exposure to on-the-job injury. The basic calculation is:

manual_premium   = (annual_payroll / 100) x class_rate
modified_premium = manual_premium x experience_mod

The class rate varies enormously by occupation — clerical work might be under $0.50 per $100, while roofing or logging can exceed $15 per $100. The experience modifier then rewards or penalizes your record: a mod of 1.00 is average, 0.85 is a 15% credit, and 1.20 is a 20% surcharge. The result is your estimated annual premium before carrier-specific loadings.

Worked example

A landscaping firm with a class rate of $4.50 per $100, $400,000 in annual payroll, and a 0.92 experience mod:

manual_premium   = (400,000 / 100) x 4.50 = $18,000
modified_premium = 18,000 x 0.92          = $16,560

Lowering the mod through a strong safety record directly cuts the bill. In this example, the 0.92 mod saves $1,440 per year versus an average-mod employer at the same payroll and class code.

What drives the experience modifier

The experience modification factor (mod) is calculated by the National Council on Compensation Insurance (NCCI), which operates in Arkansas, using three years of your actual claims data compared to expected losses for employers in the same class codes. Key factors:

• Frequency of claims matters more than severity. Many small claims hurt more than one large one, because frequency signals systemic hazard.
• New employers start at 1.00. You become experience-rated once you have enough payroll history, usually after three years.
• Claim-free years gradually pull the mod below 1.00. Even one or two claims in a year can push it above 1.00 for three subsequent policy years.

Classification codes in Arkansas

NCCI class codes (also called classification codes) are assigned based on what work employees actually perform. Arkansas employers commonly encounter:

• 8810 Clerical — office staff, typically very low rates
• 5403 Carpentry — significantly higher rate reflecting physical hazard
• 7520 Trucking — varies by cargo and route type
• 9082 Restaurants — covers kitchen and service staff

An employer with mixed operations may need multiple class codes applied to different payroll buckets. Your carrier assigns codes; misclassification can result in an audit adjustment at year end.

How much the modifier is worth in dollars

Because the mod multiplies the entire manual premium, small movements have outsized budget impact. On the $18,000 manual premium from the landscaping example:

A debit-rated employer at 1.25 pays 56% more than a credit-rated competitor at 0.80 for identical payroll and work — a structural cost disadvantage that compounds every year the claims record stays poor.

Payroll-basis details that change the answer

The “payroll” in the formula is not simply gross wages. Standard NCCI rules that commonly move the number:

• Overtime excess is excluded. The premium portion of overtime (the extra half in time-and-a-half) is generally removed from the payroll basis, so heavy overtime doesn’t inflate the premium as much as raw wages suggest — but only if your records separate it.
• Owners and officers have election rules. Sole proprietors, partners, and corporate officers can often elect in or out of coverage, and when included their payroll is typically capped or set at a fixed amount rather than actual earnings.
• Uninsured subcontractors count as your payroll. At audit, payments to subcontractors who cannot produce their own certificate of workers’ comp insurance are commonly charged to your policy as if they were employees — collect certificates before work starts.
• Splitting payroll across class codes needs records. If one employee does both clerical and field work, their wages can only be divided between the cheaper and dearer codes when your payroll records actually track the split; otherwise the entire wage goes to the highest-rated code.

What the basic premium does not include

The modified premium is the starting point. Real policies also apply:

• Expense constant — a flat per-policy fee
• Schedule credits or debits — carrier-applied adjustments for risk management programs, safety training, drug testing, etc.
• Minimum premium — a floor per policy regardless of payroll
• Year-end payroll audit — actual wages paid are reconciled against estimated payroll; you may receive a refund or an additional bill

Notes

This is the basic premium estimate only and not an insurance quote. Get a binding figure from a licensed Arkansas workers’ compensation carrier or agent. The Arkansas Workers’ Compensation Commission regulates the system; there is no exclusive state fund. All calculations run locally in your browser.

Sources and references

• Arkansas Workers’ Compensation Commission — the state regulator; there is no monopolistic state fund
• NCCI (National Council on Compensation Insurance) — the rating organization that files loss costs and calculates the experience modification factor
• U.S. Bureau of Labor Statistics — employer costs (workers’ compensation) — context for insurance cost as a share of compensation

Maintained by the Gera Tools editorial team. The premium formula (payroll ÷ 100 × class rate × experience mod) is the standard NCCI method; class-code rates are filed by carriers and change annually, so treat the output as a screening estimate and obtain a formal quote. Last reviewed 2026-07-02.