By Rovaryn Digital · July 12, 2026 · 6 min read
The Deposition Question That Ends a Vocational Opinion
A vocational expert testifies that a client's residual earning capacity fell by $18,000 a year post-injury. On cross, opposing counsel asks a simple question: "So over the client's remaining working years, that's a total loss of how much?" The expert, wanting to be helpful, multiplies the annual figure by a work-life expectancy number pulled from a table and states a lump sum on the record.
That answer is the moment the opinion stops being vocational and becomes economic — and it's usually the moment a motion to strike gets filed. Work-life expectancy belongs in a loss-of-earning-capacity analysis. Multiplying it into a discounted present-value award does not — that calculation involves discount rates, tax treatment, and growth assumptions that sit squarely in an economist's domain, not a vocational counselor's.
This article draws that line precisely: what work-life expectancy is, what a vocational report should document about it, and where the handoff to the retaining economist happens. By the end, you'll know exactly what belongs in your report's horizon section — and what to leave out so your opinion holds up when it's tested.
What Work-Life Expectancy Actually Measures
Work-life expectancy is a statistical estimate of the number of years a person of a given age, sex, education level, and (in many current tables) disability status is expected to remain active in the labor force — working or seeking work — before permanent withdrawal through retirement, disability, or death. It is not the same as life expectancy, and it is not simply "years until Social Security retirement age." A worker can have a long life expectancy and a comparatively short work-life expectancy if health status, prior labor-force attachment, or disability materially reduce the years they're statistically likely to remain economically active.
Two families of published methodology dominate current forensic practice: tables built on the "Life-Participation-Employment" (LPE) approach — commonly associated with the Millimet-Nieswiadomy-Slottje line of work — and tables built on increment-decrement modeling, associated with Skoog and Ciecka. Each produces different horizon estimates from the same age-and-education inputs because the underlying labor-force transition assumptions differ. Which table an expert or economist selects, and why, is itself something a cross-examining attorney will ask about — so the report should name the table and edition used, not just cite a number.
Where the Horizon Enters a Loss-of-Earning-Capacity Analysis
A loss-of-earning-capacity analysis has, at its core, three components: pre-injury earning capacity, post-injury (residual) earning capacity, and the annual difference between them. Work-life expectancy answers a fourth, separate question: over how many years should that annual difference be counted?
That's the full extent of the vocational contribution to the horizon question. The vocational expert's job is to establish whether the injury shortens the work-life horizon relative to an uninjured peer of the same age, education, and pre-injury occupation — a finding grounded in functional capacity, transferable skills, and labor market access, not in discount math. Whether the disability status adjustment lengthens or shortens the applicable table year is a documentable, sourced fact. What that annual differential is worth today, after discounting future dollars to present value and adjusting for expected wage growth, tax treatment, and mitigation, is the economist's calculation entirely.
This is also where disability's effect on labor-force attachment is a real, measurable phenomenon worth grounding the discussion in — not asserting from intuition. Nationally, the 2024 employment-population ratio was 22.7% among people with a disability, compared with 65.5% among people without a disability, according to the U.S. Bureau of Labor Statistics. That gap is the empirical basis for using disability-adjusted work-life tables rather than general-population tables when the claimant's post-injury status meets the applicable disability definition — a distinction worth stating plainly in a report rather than leaving implicit.
What the Report Should Document — and What It Shouldn't Compute
A defensible earning-capacity report states, at minimum:
- The table and edition used (author, publication year, and whether it's the general-population or disability-adjusted version)
- The specific inputs driving the selection — claimant's age, sex, education level, and disability status as of the analysis date
- The resulting horizon in years, stated as the table's output, not as the expert's independent estimate
- A clear statement that present-value discounting, tax adjustment, and growth-rate application are outside the vocational scope and are being deferred to the retaining economist, named if known
What it should not include is a final dollar figure that has been carried through a discount calculation. If a report shows "$18,000/year × 19.4 years = $349,200," that report has quietly become an economic opinion authored by someone not qualified — or not retained — to give one. The horizon and the annual differential are vocational deliverables. The present-value total is not.
Practice management software built for this workflow, including RehabilitationManagement's Forensic Loss-of-Earning-Capacity Report Kit, is built around that boundary: the platform records the work-life expectancy figure, its source table, and the date it was pulled — for disclosure and for the record — but it does not compute present value. That calculation, and the liability for it, stays with the economist. Keeping that separation explicit in the report's methodology section is one of the simplest ways to protect the vocational opinion from a scope challenge.
The horizon is a documented input to someone else's calculation, not a lump sum the vocational expert is qualified to deliver.
Common Cross-Examination Traps Around the Horizon
Three questions recur across depositions and trial testimony on this topic, and each has a clean answer if the report was built with the boundary in mind:
"Why this table and not another?" Answer with the selection criteria — disability status, data currency, jurisdictional or professional-standard acceptance — not with "it's what I always use."
"Did you adjust for the claimant's actual health status or just their diagnosis?" The table's disability adjustment should reflect the functional finding documented in the vocational assessment, not a generic diagnostic code. If the report doesn't show that link, the horizon figure is vulnerable.
"What's the total dollar loss?" The answer, stated plainly in testimony and matching the report, is that the vocational analysis establishes the annual earning-capacity differential and the applicable horizon; the total is a present-value calculation performed by the retaining economist, not part of the vocational opinion.
Each of these traps is really the same trap: an invitation to step outside vocational scope. A report that draws the boundary in writing, before the deposition, makes the boundary easy to hold in testimony.
Building the Habit Into Every Report
The fix for the deposition scenario at the top of this article isn't more caution in the room — it's a report template that never gives the expert room to drift. A loss-of-earning-capacity report that documents how the earning-capacity gap was calculated, sources the horizon table explicitly, and states the present-value handoff in its methodology section closes the door on scope creep before opposing counsel ever opens it. Pair that discipline with the broader structure of a defensible earning-capacity evaluation report and a clear statement of the vocational expert's role at trial, and the horizon section becomes one of the strongest parts of the report rather than its weakest.
If you're building or rebuilding your loss-of-earning-capacity report template, the Forensic Loss-of-Earning-Capacity Report Kit includes a structured section for documenting the work-life expectancy table, source, and disclosure language — download it and adapt it to your jurisdiction's standard before your next retention.