Actuaries and economists who quantify future economic loss, dependency, superannuation and financial projections in litigation.
Overview
Actuarial and economic loss experts quantify what a future or hypothetical financial loss is worth today. They take the assumptions fixed by the medical and factual evidence, for example a claimant's residual earning capacity or a deceased's likely future support of dependants, and convert a stream of future amounts into a single present value using recognised actuarial method, the prescribed discount rate and deductions for the contingencies of life. In Queensland litigation they are central to personal injury claims, to dependency claims following a death, and to commercial disputes where lost profits or lost superannuation must be projected and discounted.
Experts Edge matches litigation teams with actuaries who are Fellows of the Actuaries Institute and with economists experienced in loss quantification, each conflict-checked before any introduction and each bound by the paramount duty to assist the court under the UCPR Schedule 1C Code of Conduct. In Queensland the discount rate for damages for future loss in personal injury is prescribed by statute rather than left to the expert, so the value turns on the earning assumptions and contingency deductions rather than the arithmetic. An actuary quantifying a loss is not a business valuer opining on what an enterprise is worth, nor a forensic accountant tracing transactions; where a matter needs a business valued or funds traced, the separate Business Valuation and Forensic Accounting disciplines cover that work.
Matters these experts support
Actuarial & Economic Loss experts are commonly retained on issues including:
Future economic loss and earning capacity
The present value of earnings a claimant will lose over their working life, built on the medical evidence of residual capacity and defined assumptions about career path and retirement.
Dependency and wrongful death loss
The value of the financial support dependants have lost following a death, net of the deceased's own share, for claims under the wrongful death provisions.
Superannuation loss
Lost employer superannuation contributions and their compounding to retirement, a head of loss frequently understated when calculated by hand.
Present value and the prescribed discount rate
Converting future losses to a present lump sum using the statutory discount rate and appropriate deductions for the contingencies, or vicissitudes, of life.
Commercial and business interruption loss
Modelling lost profits, cash flows or growth in a commercial dispute, with the counterfactual and its assumptions exposed rather than assumed.
Frequently asked questions
What discount rate applies to damages for future economic loss in Queensland?
In Queensland the discount rate for damages for future loss in a personal injury claim is prescribed by statute, not chosen by the expert. Section 57 of the Civil Liability Act 2003 (Qld) fixes the rate at 5 per cent, and the motor accident and workers compensation schemes apply their own prescribed rate to the same effect. The rate is the assumed net real return, after inflation, on the lump sum the plaintiff receives, so a higher prescribed rate produces a lower present value. Because the rate is fixed, the contest in a loss report is almost never about the discount rate itself: it is about the earning assumptions, the working life adopted, the superannuation treatment and the deductions for contingencies. A good actuary states each of those assumptions and its source so the figure can be traced. In commercial matters the discount rate may not be prescribed and must itself be justified.
How much does an actuarial or economic loss expert witness cost in Queensland?
Fees turn on the number of scenarios, the quality of the earnings and financial records, and whether the loss is contested. Senior actuaries and forensic economists commonly charge hourly rates between $350 and $750 plus GST. A standard future economic loss or dependency calculation on clear assumptions commonly costs between $3,000 and $8,000. A report involving multiple scenarios, a complex career counterfactual, superannuation and tax modelling, or a commercial loss projection, commonly runs from $10,000 to $40,000 or more. Joint expert conferences and hearing attendance are billed on top, with hearing days commonly $3,000 to $5,000. Supplementary calculations to reflect revised assumptions after further evidence are usually charged separately. Always obtain a written fee estimate against a defined scope before instructing.
What must an actuarial or economic loss expert report contain under the UCPR in Queensland?
Rule 428 of the Uniform Civil Procedure Rules 1999 (Qld) requires the report to state the expert's qualifications, the facts and assumptions each opinion rests on, the reasoning for each conclusion, and the material and method relied on, and the expert must confirm they have read and agree to be bound by the Code of Conduct in Schedule 1C. For a loss report the assumptions are everything: the report should identify each input, its source and whether it is agreed or assumed, and show the calculation so the present value can be reproduced. A loss figure presented as a single output, without the working exposed, is a bare ipse dixit and invites objection. The report should also flag where an assumption is a matter for the court rather than the expert, for example the claimant's but for career path, and present alternative scenarios rather than adopting a contested fact as though it were proved.
What should a letter of instruction to an actuary or economist include?
Because a loss calculation is only as good as its assumptions, the letter should state each assumption clearly and flag which are agreed and which are contested. Set out the questions (future economic loss, dependency, superannuation, or a commercial loss), the assumed facts, and the key inputs: the claimant's pre-injury and residual earning capacity from the medical and vocational evidence, the retirement age and career path assumed, the relevant dates, and, in a dependency claim, the deceased's income and the dependants' circumstances. Ask the expert to model alternative scenarios where a fact is in dispute rather than adopt one side's version. Enclose the supporting records: tax returns, payslips, employment and superannuation statements, and any vocational assessment. Keep the letter neutral, confirm it may be disclosed, and ask the expert to confirm compliance with the Schedule 1C Code of Conduct and provide a fee estimate.
When should I engage an actuarial or economic loss expert?
Once the assumptions on which the loss depends are reasonably settled, but early enough to shape the quantum case. In personal injury and dependency claims the loss calculation flows from the medical evidence on capacity and the factual evidence on the claimant's likely career, so an actuary is usually briefed after those are in hand and before the compulsory conference where quantum is negotiated. Engaging early still helps: an actuary can identify at the outset which assumptions drive the number and therefore which factual and medical evidence is worth developing, and can flag missing earnings or superannuation records while they are still obtainable. In commercial matters, engage as soon as the counterfactual can be framed, so the loss model can be tested before the claim is pleaded. If sourcing is the bottleneck, a conflict-checked shortlist through Experts Edge compresses that first step.
When do I need an actuary rather than the published court discount tables?
For a simple, single stream of loss over a fixed period, counsel can often use the multipliers in the published present value tables, and briefing an actuary would be disproportionate. An actuary earns their fee where the loss is more complex than a table can capture: where earnings would have stepped up over a career, where there are overlapping periods of total and partial incapacity, where superannuation and its compounding must be modelled, where tax materially affects the net loss, or where a dependency claim involves several dependants with different needs and durations. An actuary is also valuable where the contingency deductions are genuinely in issue, or where multiple scenarios must be run to reflect disputed facts. As a rule, the more the loss departs from a flat amount over a single period, the stronger the case for an actuarial report over a table.
How does an actuary account for the contingencies or vicissitudes of life?
A future loss is not certain to be suffered in full: the claimant might have been made redundant, fallen ill, taken time out of the workforce or retired early regardless of the injury, and the law requires a deduction to reflect those contingencies, traditionally called the vicissitudes of life. An actuary can apply the deduction in two ways: as a conventional percentage reduction to the calculated loss, the approach courts most often adopt, or through a more granular allowance for specific risks such as unemployment and mortality drawn from population data. The report should state the deduction made, explain the basis for it, and avoid double counting a risk that is already built into an earlier assumption. Because the size of the contingency allowance is often argued, the expert should be able to justify the figure and show the effect of a different allowance on the result.
Other areas of expertise
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