If you run a business and your profits dropped after a car accident, it is not enough to show that the downturn happened after the accident. In a Queensland motor vehicle accident claim, you usually need to prove that the accident-related injuries reduced your ability to work, manage, supervise, travel, quote for jobs, or service clients — and that this caused a real financial loss.

For self-employed people, including cleaners, tradespeople, drivers, sole traders and small business owners, the strongest claims usually combine medical evidence, financial records, accountant evidence, client or staff evidence, and a clear explanation excluding other business reasons for the downturn.

For-example, a plaintiff who conducts a cleaning business must prove, on the balance of probabilities, that the accident-related injuries caused or materially contributed to the decline in business profits, rather than the decline being attributable to unrelated commercial factors such as loss of contracts, market conditions, staffing issues, seasonality, poor management, or general business downturn.

In a Queensland motor vehicle accident claim, this issue usually arises as part of the plaintiff’s claim for past economic loss and future economic loss / impaired earning capacity under the motor accident and civil liability framework. The focus is not merely that profits declined after the accident, but whether the plaintiff’s earning capacity was impaired and whether that impairment produced, or may produce, financial loss.

We’ll use a cleaning business scenario as an example:

1. Establish the “but for” position

The plaintiff should first identify what the business would probably have earned but for the accident. This requires comparing:

• the business’s likely profits if the plaintiff had not been injured; with
• the actual profits earned after the accident.

For a business loss claim, forensic accounting evidence commonly analyses the difference between the “but for” scenario and the actual post-accident performance. The plaintiff must show that the post-accident decline is consistent with the physical or psychological restrictions caused by the accident.

For example, in a cleaning business, the plaintiff may rely on evidence that, because of lumbar spine injury or other accident-related impairment, they could no longer:

• perform heavy cleaning tasks;
• bend, lift, kneel, mop, vacuum, or carry equipment for sustained periods;
• work the same number of hours;
• service the same number of clients;
• supervise staff effectively;
• travel between jobs;
• quote for new work;
• maintain commercial contracts; or
• perform urgent or after-hours work.

The stronger the connection between the plaintiff’s personal labour and the business revenue, the easier it will usually be to show causation.

2. Produce contemporaneous financial records

The plaintiff should support the claim with business records showing the business’s performance before and after the accident. Important documents include:

• income tax returns;
• business activity statements;
• profit and loss statements;
• balance sheets;
• invoices issued to clients;
• bank statements;
• payroll records;
• contractor invoices;
• customer contracts;
• job schedules or rosters;
• quotes accepted and rejected;
• cancelled contracts;
• MYOB, Xero, QuickBooks or other accounting reports;
• diaries showing work performed;
• text messages or emails from clients about reduced availability;
• records of replacement labour; and
• evidence of advertising, referrals, or enquiries that could not be serviced.

A forensic accountant will commonly require income tax returns, financial statements, and internal management reports for several years before and after the relevant event in order to assess whether the claimed decline is accident-related.

A bare assertion that “turnover dropped after the accident” is usually insufficient. The court will want to see whether net profit, rather than merely gross revenue, declined, and whether any cost savings or replacement labour costs should be taken into account.

3. Use a proper comparison period

A persuasive analysis will usually compare a reasonable period before the accident with the period after the accident. In a cleaning business, that comparison should account for:

• seasonality;
• one-off contracts;
• COVID-19 or other market disruptions;
• changes in client demand;
• change in number of staff;
• price increases or reductions;
• loss of a major client for reasons unrelated to injury;
• new competitors;
• relocation;
• changes in advertising;
• illness or absence unrelated to the accident; and
• ordinary business volatility.

A “before-and-after” method may be used where the historical financial data is sufficiently reliable, but caution is required if the pre-accident and post-accident periods are affected by different external circumstances.

Where the cleaning business is new or had an insufficient trading history, the plaintiff may need to rely on comparable business data, industry benchmarks, or evidence of actual contracts or opportunities that were lost because the plaintiff could not perform the work.

4. Link medical restrictions to the loss of profit

The financial evidence should be matched with medical evidence. It is not enough to prove both injury and reduced profits; the plaintiff must connect the two.

The plaintiff should obtain evidence addressing:

• diagnosis;
• functional restrictions;
• work capacity;
• hours the plaintiff can perform;
• tasks the plaintiff can no longer perform;
• whether the plaintiff can supervise but not perform physical cleaning;
• whether symptoms are permanent or temporary;
• whether the plaintiff can work with treatment or modifications;
• prognosis;
• residual earning capacity; and
• whether the plaintiff’s account of work incapacity is consistent with the injury.

In Queensland cases, courts assess economic loss by considering the plaintiff’s pre-injury earning capacity, the impact of the injury on capacity to work, and the likelihood of future work. The Court of Appeal in Sutton v Hunter also illustrates the significance of expert evidence when assessing whether impairment of earning capacity is ongoing; the Court increased the future economic loss award where the evidence did not support a finding that the plaintiff would have no continuing diminution in capacity after a particular date.

5. Distinguish gross revenue from net personal loss

For a self-employed plaintiff, the relevant loss is not necessarily the whole decline in business turnover. The analysis should identify:

• gross revenue lost;
• expenses avoided;
• extra expenses incurred;
• replacement labour costs;
• whether the plaintiff continued to draw wages or profits;
• whether the business loss represents loss of the plaintiff’s own labour or loss caused by broader business factors;
• whether profits were retained in the business; and
• whether income was split with a spouse, company, trust, or partnership.

This distinction is important because damages for economic loss are directed to impairment of earning capacity and the financial consequences flowing from it. In Husher v Husher, the High Court emphasised that the inquiry concerns what the plaintiff could have done in the workforce but for the accident and what money would have been at the plaintiff’s disposal, while allowing for future contingencies.

Accordingly, if a plaintiff’s cleaning business profits dropped by $80,000, it does not automatically follow that the plaintiff personally lost $80,000. The evidence must show what part of that decline reflects the plaintiff’s lost capacity, rather than unrelated business expenditure, accounting treatment, or losses borne by another entity.

6. Explain and exclude unrelated business factors

The plaintiff should anticipate the insurer arguing that the downturn was caused by non-injury factors. The plaintiff’s evidence should therefore address, where relevant:

• whether any major client was lost for reasons unrelated to the accident;
• whether the plaintiff voluntarily reduced the business for lifestyle or family reasons;
• whether there was a general downturn in cleaning demand;
• whether the business had already been declining before the accident;
• whether the plaintiff lost staff or subcontractors;
• whether there were cashflow or management problems;
• whether advertising stopped;
• whether the plaintiff increased prices and lost clients;
• whether the business was affected by COVID-19 or other external disruptions;
• whether records show work was declined because of injury; and
• whether the plaintiff could have mitigated by hiring staff or subcontractors.

The most persuasive evidence is usually contemporaneous. For example:

• emails to clients saying the plaintiff cannot attend because of injury;
• client evidence that they stopped using the business because the plaintiff was unavailable;
• diary entries showing reduced work hours after the accident;
• records showing the plaintiff hired replacement cleaners;
• increased wage or subcontractor expenses after the accident;
• evidence of quotes not pursued because the plaintiff lacked physical capacity;
• evidence that the plaintiff previously performed the work personally and could not replace that labour profitably.

7. Demonstrate mitigation and the cost of mitigation

The plaintiff should also show reasonable mitigation. In a cleaning business, this may include:

• hiring subcontractors;
• using casual employees;
• reducing physically demanding work;
• taking more supervisory or administrative duties;
• limiting jobs to lighter cleaning;
• changing equipment;
• reducing travel between jobs;
• restructuring work hours; or
• attempting a graduated return to work.

If the plaintiff hired replacement labour, the claim may be advanced by reference to the additional cost of that labour, less any wages or expenses saved. Where the injured person operates through a company, separate consideration may need to be given to whether the company has its own claim, because a company is a distinct legal entity and may suffer loss where the injured person’s services are unavailable.

However, employer or company claims for loss of services are subject to limits. A loss of servitium claim is generally confined to losses flowing directly from interference with the employer’s right to the employee’s services, commonly replacement labour expenses less saved wages; claims for loss of revenue or profits are more confined and may depend on whether the injured worker was effectively irreplaceable.

8. Use lay witness evidence

Lay evidence can be important, especially in a small cleaning business where formal records may not capture all lost opportunities. Useful witnesses may include:

• clients;
• employees;
• subcontractors;
• bookkeeper or accountant;
• spouse or business partner;
• referrers;
• commercial property managers;
• treating practitioners; and
• occupational therapists.

Their evidence may establish that, before the accident, the plaintiff personally performed most of the revenue-producing work, and that after the accident the plaintiff could not maintain the same workload.

9. Deal with uncertainty through loss of chance or evaluative assessment

Where exact calculation is difficult, the plaintiff may still recover if the evidence establishes a real economic loss or loss of earning capacity. Queensland authority recognises that damages are awarded for loss of earning capacity only to the extent that the loss produces or may produce financial loss. In Nichols v Curtis, the Queensland Court of Appeal accepted the importance of considering employment history and efforts to improve employability when assessing past economic loss.

Similarly, in Sutton v Hunter, the Court accepted that economic loss may require an evaluative assessment, particularly where the plaintiff’s work history and future capacity are uncertain. Section 55 of the Civil Liability Act 2003 (Qld) may be relevant where loss of earnings cannot be precisely calculated, with the court making an assessment based on the available evidence rather than mathematical certainty.

Frequently Asked Questions

Can I claim business profit loss after a car accident in Queensland?

Yes, but you need evidence showing that your accident-related injuries caused or materially contributed to the loss. It is not enough to show that the business made less money after the accident.

What documents help prove business loss?

Useful documents include tax returns, business activity statements, profit and loss statements, invoices, bank statements, payroll records, contractor invoices, client contracts, diaries, rosters, quotes and accounting reports from Xero, MYOB or QuickBooks.

Is loss of turnover the same as loss of income?

No. Turnover is the total money received by the business. The more important figure is usually net profit or personal income after expenses, saved costs, replacement labour and business structure are considered.

What if my business was already declining before the accident?

The insurer may argue that the loss was caused by unrelated business reasons. You may need financial, accounting and lay evidence to explain whether the accident caused further loss or reduced your ability to maintain or grow the business.

Do I need a forensic accountant?

In more complex business loss claims, a forensic accountant can be very helpful. They can compare the likely “but for” business position against the actual post-accident performance and consider other possible causes of the downturn.

What if I hired someone to replace me?

Replacement labour costs may support the claim if they were reasonably incurred because you could no longer perform the work yourself. The calculation should also account for any wages, expenses or costs saved.

This article is provided for general legal education purposes only and should not be taken as legal advice.