Texas Workers’ Comp Impairment Income Calculator

Key Takeaways

• Texas Impairment Ratings assess permanent loss of function after serious workplace injuries.

• Impairment Income Benefits equal 70% of the employee’s average weekly wage.

• Total benefit duration is calculated by multiplying the impairment rating percentage by three.

• Ratings are assigned after reaching Maximum Medical Improvement or 104 weeks of temporary benefits.

• Workers have 90 days to dispute an impairment rating before it becomes final.

Serious workplace injuries rarely end when the immediate medical crisis does. For many Austin workers, the longer process of determining permanent disability and calculating future income replacement begins weeks or months later. That determination hinges on one number: an impairment rating. Understanding how the impairment rating payout calculator works under Texas law is what separates workers who receive fair, accurate benefits from those who accept less than they are owed. The Law Offices of Aaron Allison has helped injured Austin workers evaluate their ratings and understand what those numbers actually mean for their financial recovery.

What Is an Impairment Rating in Texas Workers’ Comp?

An impairment rating is a physician’s assessment of the permanent loss of function a worker has sustained after a workplace injury. It is expressed as a percentage of whole-body impairment, ranging from one percent for a minor permanent deficit to much higher figures for severe injuries involving the spine, limbs, or neurological system.

Texas law does not assign an impairment rating immediately after an injury. As the Texas Department of Insurance explains, workers’ compensation is a state-regulated insurance program that covers medical care and partial wage replacement for employees hurt on the job. The rating process begins only after the injured worker has either received temporary income benefits for 104 weeks or a treating physician determines that further medical care will not meaningfully improve the worker’s condition, a point Texas law calls maximum medical improvement (MMI).

Once MMI is certified, a designated doctor assigns the impairment rating using the American Medical Association’s Guides to the Evaluation of Permanent Impairment. That percentage then drives the calculation for impairment income benefits (IIBs), making its accuracy consequential to every worker’s financial outcome.

What Happens When A Worker Is Seriously Injured in Texas?

A workplace injury sets off a sequence of steps that must be handled correctly from the start. Missteps early in the process can affect benefit eligibility later, including the impairment rating calculation that determines long-term income replacement.

The injured worker’s first obligation is to report the injury to their employer as soon as possible. Texas law requires this report within 30 days of the incident. From there, the worker seeks medical care through a state-approved network provider, and the employer’s workers’ compensation insurance carrier begins evaluating the claim.

Once the claim is active, temporary income benefits begin if the worker is unable to perform regular job duties for more than seven days due to the injury. Those benefits continue through the recovery period, covering the gap between the injury date and the point where the worker either returns to full duty or reaches a condition of medical stability. It is at that point of stability that the impairment rating process begins — and where the financial stakes of an accurate assessment become clear.

Who Assigns the Impairment Rating — and Can You Dispute It?

The impairment rating is assigned by the treating doctor or, in contested cases, a designated doctor appointed by the Texas Division of Workers’ Compensation. Insurance carriers frequently request their own medical evaluations, and those evaluations do not always align with what the treating physician has documented.

Workers who believe their rating is inaccurate have a defined window to act. Texas rules provide 90 days from receipt of a first valid impairment rating to request a designated doctor examination or dispute the rating through the Division of Workers’ Compensation. Once that window closes, the rating becomes final, and the benefit calculation is locked in. Waiting is rarely in a worker’s interest.

If the designated doctor’s rating differs from the treating physician’s, the Division assigns weight to each assessment based on supporting medical documentation. That process involves formal procedures, deadlines, and medical record submissions that benefit from legal oversight before a response is due.

What Information Do You Need to Calculate Your Payout?

The impairment rating payout calculator for Texas IIBs requires three inputs: the impairment rating percentage, the average weekly wage (AWW), and the applicable state AWW maximum and minimum for the date of injury.

As the Texas Department of Insurance’s impairment income benefits page explains, IIBs are set at 70 percent of the worker’s average weekly wage, based on the state AWW maximum and minimum amounts tied to the specific date of injury. The AWW itself is calculated from the gross pay the employer reported for the 13 weeks preceding the injury, including overtime and any applicable bonuses.

The formula works as follows:

• Weekly benefit amount: AWW × 70%
• Total weeks of benefits: Impairment rating percentage × 3
• Total benefit value: Weekly benefit amount × total weeks

A worker with a 10 percent impairment rating earning an AWW of $900 would receive $630 per week for 30 weeks. A 20 percent rating at the same wage generates 60 weeks of payments. Each percentage point added to the rating adds three weeks of benefits, which is why even a modest increase in an inaccurate rating carries real financial weight.

Understanding the 4 Types of Income Benefits in Texas

Impairment income benefits are one part of a broader framework. As the Texas Department of Insurance outlines, Texas workers’ compensation provides four categories of income benefits, each corresponding to a different phase of recovery and disability.

• Temporary income benefits (TIBs) replace a portion of wages while the worker is temporarily unable to perform regular duties. These continue until the worker returns to work, reaches MMI, or 104 weeks have passed.
• Impairment income benefits (IIBs) begin after MMI is certified and the impairment rating is assigned. They are paid at 70 percent of AWW for a number of weeks equal to three times the impairment rating percentage.
• Supplemental income benefits (SIBs) are available to workers whose impairment rating is 15 percent or higher and who continue to experience wage loss after IIBs are exhausted. Eligibility requires ongoing effort to find work commensurate with the worker’s physical limitations.
• Lifetime income benefits (LIBs) apply to the most catastrophic injuries, including total and permanent loss of vision in both eyes, both hands, or both feet, or combinations of limbs meeting specific statutory thresholds. LIBs are paid for the remainder of the worker’s life.

Understanding which benefit type applies at each stage of a claim determines how long financial support continues and at what level.

Impairment Rating Payout Examples for Common Injuries

The practical effect of an impairment rating becomes clearer when applied to real injury categories. The following examples use a hypothetical AWW of $800, producing a weekly IIB rate of $560.

• Finger or hand injury (5% impairment rating): 15 weeks of IIBs, totaling $8,400. These injuries are common in manufacturing and construction environments across Austin.
• Shoulder or knee injury requiring surgery (15% impairment rating): 45 weeks of IIBs, totaling $25,200. At this threshold, the worker also becomes eligible to apply for supplemental income benefits if wage loss continues.
• Lumbar spine injury with permanent restriction (25% impairment rating): 75 weeks of IIBs, totaling $42,000. Spinal injuries frequently generate disputes about the correct rating because the functional loss is harder to standardize.
• Traumatic brain injury or bilateral limb loss (50%+ impairment rating): 150 or more weeks of IIBs, with the possibility of lifetime income benefits if statutory thresholds are met.

These figures assume accurate AWW calculations and correct rating assignments. Either figure can be understated by errors that go unchallenged during the review window.

What to Do If Your Impairment Rating Seems Too Low

A low impairment rating is not simply a physician’s opinion. It is a number that determines how many weeks of benefits a worker receives, and accepting it without review can mean accepting a permanent financial shortfall.

The first step is confirming that the AWW used in the calculation is accurate. Wages from the full 13-week pre-injury period must be included, along with overtime and applicable bonuses. Errors in this figure compound across every week of benefits.

The second step is evaluating the medical basis for the rating itself. Ratings assigned after a brief exam, without review of imaging or specialist records, may not reflect the full extent of permanent impairment. A request for a designated doctor examination through the Texas Division of Workers’ Compensation can prompt an independent review of the medical evidence.

Workers have 90 days from receipt of a valid first rating to initiate a dispute. That deadline does not pause, and the process for challenging a rating involves formal submissions and procedural requirements that favor workers who engage legal counsel early. Our team reviews impairment ratings, checks wage calculations, and identifies whether the assigned percentage reflects the actual medical record before that window closes.

Discuss Your Impairment Rating Payout Calculator Results With Aaron Allison

An impairment rating that is off by even a few percentage points can cost an injured worker weeks of income benefits. The Law Offices of Aaron Allison represents Austin workers through the full workers’ compensation process, including impairment rating reviews, wage calculation disputes, and Division proceedings. Call us today at (512) 886-8434 to discuss your impairment rating payout calculator results and what they mean for your claim.

Aaron Allison, Attorney

For 50 years, my father, served as a trial lawyer to get just compensation for the people of Austin. At age 14, I began to take up the mantle to continue my father’s practice as a second generation trial lawyer serving Austin’s community. The strength of his legacy continues through its commitments to a communal presence, honoring that each case is as unique as the individual pursuing compensation.

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