Time limits are one of the most critical — and most frequently misunderstood — aspects of professional negligence claims. Miss the applicable deadline and your claim is barred permanently, regardless of how strong it is or how much loss you have suffered. This guide explains the rules that govern limitation in professional negligence cases, when the clock starts running, and what happens in cases where you did not discover the negligence until years after it occurred.
If you are concerned that a time limit may be approaching or has already passed, contact our professional negligence solicitors immediately — do not delay.
The Primary Limitation Period: 6 Years
The primary limitation period for most professional negligence claims in England and Wales is six years. This is set by section 2 of the Limitation Act 1980 for claims in the tort of negligence and section 5 for claims in contract — and since most professional negligence claims can be framed in both tort and contract, the six-year period typically applies to both causes of action.
The six years runs from the date on which the cause of action accrued — which in negligence means the date on which the loss was suffered. This is typically (but not always) the date of the negligent act or advice, or very shortly afterwards.
Example: A solicitor gives negligent conveyancing advice on 1 March 2020, as a result of which the client purchases a property with an undisclosed structural defect. The primary limitation period runs from 1 March 2020 and expires on 1 March 2026.
The Discoverability Period: 3 Years From Date of Knowledge
The Limitation Act 1980 also contains an important alternative starting point for limitation in negligence cases. Under section 14A, where a claimant did not know — and could not reasonably have known — that they had suffered a loss attributable to the defendant’s negligence, the limitation period does not begin to run until the claimant had the knowledge required to bring the claim.
This alternative starting point gives a claimant three years from the date of knowledge in which to bring a claim.
Date of knowledge under section 14A means the date on which the claimant knew:
- That the damage was significant
- That the damage was attributable (at least in part) to the act or omission alleged to constitute negligence
- The identity of the defendant
Constructive knowledge — what the claimant ought reasonably to have known if they had taken reasonable steps to investigate — also counts. You cannot deliberately avoid discovering facts that would reveal the negligence and then claim the time did not run.
Example: Using the same scenario — if the structural defect did not come to light until a survey carried out during a subsequent sale in 2023, and the claimant could not reasonably have discovered it before then, the three-year period would run from 2023, potentially giving until 2026 to bring the claim even though the primary six-year period has also expired.
The Longstop: 15 Years
Section 14B of the Limitation Act 1980 imposes an absolute longstop on claims under section 14A. Regardless of when the claimant discovered — or could have discovered — the negligence, no claim can be brought more than 15 years after the date of the act or omission alleged to constitute negligence.
This means that even if you genuinely could not have discovered the negligence earlier, claims arising from acts of negligence that occurred more than 15 years ago are permanently time-barred.
Example: If the negligent conveyancing advice was given on 1 March 2005, and the defect was only discovered in 2022, the three-year period from discovery would run from 2022 and would normally expire in 2025. However, the 15-year longstop — which expired on 1 March 2020 — means the claim is time-barred regardless of the discovery date.
Contract Claims: The 6-Year Period From Breach
Where a professional negligence claim is framed in contract rather than tort, limitation runs from the date of breach of contract — which is typically the date on which the negligent act or advice was given. The six-year period applies.
Unlike tort claims, the discoverability provisions of section 14A do not apply to contract claims. This means that a contract claim can become time-barred even where the claimant had no way of knowing about the breach until after the six-year period expired.
In practice, most professional negligence claims are framed in both contract and tort where possible. Where the tort claim benefits from the section 14A extension and the contract claim is time-barred, the tort claim can still proceed. Your solicitor will advise on which causes of action remain available in your specific circumstances.
When Does the Clock Start in Common Scenarios?
| Type of negligence | When limitation typically starts |
|---|---|
| Missed limitation deadline | Date the original claim was lost |
| Negligent conveyancing | Date of completion of the transaction |
| Negligent investment advice | Date the investment was made (or date loss crystallised) |
| Negligent survey | Date of the survey (or date defect discovered) |
| Negligent will drafting | Date of the testator’s death (when loss crystallises for beneficiaries) |
| Negligent employment advice | Date the settlement agreement was signed |
These are general guides — the correct starting point for limitation depends on the specific facts of each case and can be complex. A solicitor will advise on the applicable limitation period in your circumstances.
What If You Think Your Claim Is Time-Barred?
Do not assume your claim is time-barred without taking specialist advice. Limitation is a technical and complex area of law, and the date from which the period runs is not always obvious. Several questions need to be answered:
- Is there a section 14A date of knowledge argument available?
- Is the claim in contract as well as tort — and if so, when did the breach occur?
- Has the defendant done anything that might have extended or restarted the limitation period?
- Is there any argument that limitation should be disapplied under section 33 of the Limitation Act (which applies to personal injury claims)?
- Was there any fraud or concealment by the defendant that delayed discovery?
Where fraud or deliberate concealment by the defendant prevented the claimant from discovering the negligence, section 32 of the Limitation Act postpones the running of limitation until the claimant discovered — or could with reasonable diligence have discovered — the concealment. This can be particularly relevant in cases of professional negligence where a professional has actively covered up their mistake.
Act Quickly
Even if you believe you have time, there are compelling reasons to act quickly rather than wait:
- Evidence deteriorates and witnesses’ memories fade over time
- Documents may be destroyed after standard retention periods expire
- The defendant’s insurer may be more willing to negotiate early in a claim than after proceedings are issued
- Investigating a claim properly takes time — the earlier a solicitor is instructed, the more thoroughly the case can be prepared
If you are concerned about a limitation deadline, contact a solicitor immediately. Our professional negligence team can assess the limitation position quickly and take urgent steps to protect your position if needed.
How Hi Solicitors Can Help
Limitation is one of the areas where specialist legal advice matters most. Our solicitors in Bolton will advise you on the applicable limitation period in your case, assess whether any extension arguments are available, and act urgently where a deadline is approaching. We will also manage the full claim process from first instruction through to resolution.
Call 01204 371 414 for a free initial consultation. Do not delay if you are concerned about a time limit.
187b Derby St, Bolton, BL3 6JT · hisolicitors.co.uk
Frequently Asked Questions
Q: What is the time limit for a professional negligence claim?
The primary period is six years from the date the loss was suffered. Where the claimant did not and could not reasonably have known about the negligence, an alternative three-year period runs from the date of knowledge. An absolute longstop of 15 years applies regardless of when the negligence was discovered.
Q: Does the time limit apply even if I did not know I had a claim?
The primary six-year period runs regardless of knowledge. However, section 14A of the Limitation Act provides a three-year period from the date you discovered — or should have discovered — the negligence, subject to the 15-year longstop. Whether this extension applies to your situation depends on the facts and requires specialist advice.
Q: What happens if I miss the time limit?
Your claim will be permanently barred by limitation. The defendant will be able to raise limitation as a complete defence, and the court will strike out the claim. This is why it is essential to seek advice as soon as you suspect negligence rather than waiting to be certain.
Q: Can the time limit be extended?
In most professional negligence cases, the court does not have a discretion to extend the limitation period (unlike personal injury cases, where section 33 of the Limitation Act applies). The time limits are strict. The only ways around them are the section 14A date of knowledge argument, the section 32 concealment argument, or in very limited circumstances an agreement between the parties to extend time.
Q: Is the time limit the same for all types of professional negligence?
The Limitation Act 1980 applies to all professional negligence claims but the starting point for the six-year period depends on the type of claim and when the loss crystallised — which varies across different types of negligence. The date of knowledge provision also interacts differently with different fact patterns. Specialist advice is essential to identify the correct limitation position in any given case.
