Professional Negligence Claims: How They Work and When You Can Claim

Professional negligence claims can arise when a solicitor, surveyor, accountant or other professional falls below the expected standard of care and causes financial loss. This guide explains who can claim, the legal tests courts apply, limitation periods and the latest Supreme Court decisions.

Professional negligence is one of those phrases that sounds abstract until it happens to you. A solicitor misses a limitation deadline. A surveyor overlooks subsidence. An accountant signs off accounts that turn out to be wrong. In each case, someone trusted an expert, relied on their advice, and lost money because that advice fell short.

English law has spent decades refining exactly when a professional becomes legally liable for that kind of failure.

What Is Professional Negligence?

Professional negligence arises when someone holding themselves out as having a particular skill – a solicitor, architect, financial adviser, doctor, valuer, accountant, or similar fails to meet the standard of care reasonably expected of a competent member of that profession, and that failure causes a client or third party to suffer loss.

It’s a broad umbrella. Claims regularly arise against:

• Solicitors and barristers – missed deadlines, negligent conveyancing, poor litigation advice
• Surveyors and valuers – inaccurate property valuations or survey reports
• Accountants and auditors – negligent audits, flawed tax advice
• Financial advisers – unsuitable investment or pension advice
• Insurance brokers – negligent placement of cover, gaps in policy advice

A claim can be brought in contract (if there’s a retainer or engagement letter), in the tort of negligence, for breach of fiduciary duty, or for breach of statutory duty – and often more than one of these routes is available at once, a position English law calls concurrent liability.

How Do Professional Negligence Claims Work?

To succeed in a professional negligence claim, a claimant usually has to prove four legal elements.

1. Duty of care

Did the professional owe the claimant a legal duty? This is usually straightforward where there’s a direct client relationship, but it becomes contested where a third party – someone who relied on a valuation or reference without being the direct client – tries to bring a claim. Courts ask whether the professional assumed responsibility to that person.

2. Breach of duty

Did the professional fall below the standard of a reasonably competent member of their profession? The classic test here is the Bolam test, drawn originally from clinical negligence: a professional isn’t negligent if they acted in a way accepted as proper by a responsible body of opinion in their field, even if other practitioners would have done things differently.

3. Causation

This is where many claims fail. It isn’t enough to show the professional got something wrong the claimant must prove that breach actually caused their loss. Would the outcome have been different with competent advice? Courts also apply the “loss of chance” doctrine in cases where the claimant lost a valuable opportunity rather than a certain outcome.

4. Scope of duty and recoverable loss

Even where breach and causation are proven, a claimant can only recover losses that fall within the scope of the duty the professional actually assumed. This is the area that has generated the most significant case law of the past few years.

Why scope of duty matters: A professional who gives limited information isn’t automatically on the hook for every consequence that flows from a client’s broader decision. English courts distinguish between “advice” cases (the professional is responsible for the whole decision) and “information” cases (the professional is only liable for the foreseeable consequences of the specific information being wrong).

The Case That Rewrote Scope of Duty: Manchester Building Society v Grant Thornton

Before 2021, the scope of a professional’s duty was governed largely by the House of Lords decision in South Australia Asset Management Corp v York Montague Ltd (the “SAAMCO” case). Here, a surveyor overvalued a property (£15M instead of an actual £5M) and based on that valuation – a lender loaned £11M. The borrower defaulted, the lender seized the property to sell it only to find that the market had crashed. The borrower sought to claim not only the loss incurred in loaning more than the value of the building but the loss caused by the market crashing.  The Court held that the surveyor’s liability was limited to the loss generated by the overvaluation and damages for losses from the market should not be granted. While avoiding overvaluation was within the duty of the surveyor, the risks associated with the transaction as a whole were not. Lord Hoffman stated that to recover damages for negligence advice, there are two requirements: “first, to prove that he has suffered loss, and, secondly, to establish that the loss fell within the scope of the duty he was owed.”

The Supreme Court’s decision in Manchester Building Society v Grant Thornton UK LLP _{[2021] UKSC 20} reformulated this test with a clearer, purpose-based question: what was the purpose of the duty the professional assumed, and was the loss the kind of loss that duty was meant to guard against? This “counterfactual” framing is now the standard starting point in scope-of-duty disputes and continues to be applied and refined in subsequent cases.

Sector Snapshot: Where Claims Are Concentrated

SECTOR		COMMON ALLEGATIONS	CURRENT PRESSURE POINT
Solicitors & conveyancers		Missed limitation dates, negligent conveyancing, poor litigation strategy	Scope-of-duty arguments narrowing recoverable loss in high-value claims
Valuers & surveyors		Negligent property or asset valuations	Continued reliance on SAAMCO/Manchester Building Society “information” categorisation
Auditors & accountants		Negligent audit sign-off, flawed financial advice	Awaited judgment in NMC v EY, expected to clarify duty and reliance issues
Financial advisers & brokers		Unsuitable investment advice, negligent insurance placement	Ongoing regulatory scrutiny alongside civil claims

What Is the Time Limit for a Professional Negligence Claim?

Limitation is one of the first things to check in any professional negligence matter, because it can be fatal to an otherwise strong claim.

• Contract claims: generally six years from the date of breach.
• Tort claims: generally six years from the date the damage occurred – which is not always the same as the date of the negligent act.
• Latent damage: where a defect isn’t reasonably discoverable straight away, a claimant may have three years from the date of knowledge, subject to a 15-year long-stop.

Given how fact-specific these rules are, and how much recent litigation has turned on exactly when a limitation clock starts running, early advice is essential.

Need advice on a professional negligence claim?

If you think you’ve suffered financial loss because of negligent advice from a solicitor, surveyor, accountant or another professional, or you’re defending a professional negligence claim, Graham Mead Partner in Prettys Solicitors’ Commercial Litigation team, can help.

You can also find out more about our Dispute Resolution services.

Frequently Asked Questions

Can I claim against a professional I never directly instructed?

Sometimes. Third parties who reasonably relied on a professional’s work such as a valuation prepared for a lender, or a reference relied on by an employer can bring a claim if the professional can be shown to have assumed responsibility to them specifically, even without a direct contractual relationship.

Do I need to prove the professional acted dishonestly?

No. Negligence is about falling below a reasonable standard of skill and care — it doesn’t require dishonesty or bad faith. A professional can be perfectly well-intentioned and still be found negligent.

Can I claim if the professional’s mistake didn’t actually cost me anything yet?

Generally you need to show actual, quantifiable loss to bring a claim a mistake alone, without a resulting loss, usually isn’t enough. This is why causation is so often the battleground in these cases.

Who can bring a professional negligence claim?

Anyone who suffered financial loss because a professional breached the standard of care they owed may be able to claim. Most claims involve clients, but third parties may also have rights where responsibility was assumed.

What compensation can you recover?

Compensation usually aims to put the claimant back in the position they would have been in if the negligence had not happened, but recoverable losses are limited to those within the professional’s scope of duty.

Is there a cap on how much I can recover?

There’s no statutory cap, but recoverable loss is limited by the scope-of-duty principle from Manchester Building Society v Grant Thornton: you can only recover losses that fall within the purpose of the duty the professional owed you, even if your total losses are larger.

What should I do if I think I have a claim?

Act promptly because of limitation periods, gather all correspondence and engagement documents, and get advice from a solicitor experienced in professional negligence claims in your specific sector the tests applied to a surveyor’s valuation differ in practice from those applied to a solicitor’s conveyancing advice.

This article provides a general overview of English professional negligence law for informational purposes and does not constitute legal advice. Case law develops quickly in this area anyone considering a claim, or facing one, should take advice from a qualified solicitor on their specific circumstances.