This guide is maintained as a current resource for August 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Explore how limitation periods work for children in negligence claims in England and Wales. This detailed guide explains when deadlines start, how litigation friends can act, key rules under the Limitation Act 1980, the date of knowledge concept, and practical steps to preserve children's rights to compensation.

In negligence claims in England and Wales - including personal injury and clinical negligence - limitation periods are the legal deadlines for starting a claim in the civil courts. For most adults, the standard time limit is three years from the date the injury occurred or from when they first knew the injury was linked to negligent care. However, different rules apply for children (minors under the age of 18). These special rules are designed to protect the rights of children who may not be able to recognise the need for legal action or bring a claim themselves before adulthood. Understanding how limitation periods work for children is essential for parents, guardians, carers, solicitors and anyone involved in a potential claim on behalf of a minor.
What Is a Limitation Period?
A limitation period sets the latest date by which court proceedings must be commenced. Under the Limitation Act 1980, most negligence and personal injury claims must be started within three years either from:
- The date the cause of action accrued (for example, the date of the negligent act or omission); or
- A later date of knowledge - when the claimant first knew, or reasonably ought to have known, about the injury, its significance and its likely cause.
If proceedings are issued after the relevant limitation period has expired, the court will usually refuse to hear the claim.
Why Children Have Special Rules
Children - defined in law as individuals under the age of 18 - are considered to be under a “legal disability” for limitation purposes. The law recognises that minors may not appreciate the legal consequences of an injury, know how to obtain legal advice, or be able to instruct a solicitor. As a result, limitation periods do not begin to run against a child while they remain under 18. Instead, the rules treat childhood as a disability that suspends the running of time until adulthood.
How Limitation Periods Apply to Children
1. Limitation Doesn't Start Until Age 18
When a child suffers harm due to negligence, the three‑year limitation period normally does not begin to run until the child's 18th birthday. This means that if a child is injured at age 10 as a result of negligent medical treatment or an accident, the limitation clock will not start until they turn 18. As a result, the three‑year period will normally expire on their 21st birthday.
2. Proceedings Can Be Started Before Adulthood
Even though limitation does not run against children before age 18, litigation can still be initiated on their behalf by a “litigation friend”. A litigation friend - often a parent or close relative - must conduct the proceedings competently and in the child's best interests. They can issue court proceedings and take steps necessary to advance the case while the child is still a minor.
3. Time Limits After Age 18
If no proceedings were started by a litigation friend before the child reached 18, the now‑adult claimant has three years from their 18th birthday to issue a claim for injuries suffered while they were a child. This ensures that an injured child has the full three‑year limitation period once they reach adulthood. The limitation period may also be affected by the date of knowledge rule if the injury or causal link was not apparent at 18.
4. Claims Brought by or Against Estates
If the child dies from their injuries before the limitation period expires, the rules change slightly. An executor or personal representative may bring a claim on behalf of the deceased's estate. In this case, limitation runs from the later of the date of death or the date of knowledge of the representative.
The “Date of Knowledge” and Children
Although the primary rule is that limitation does not run until age 18, the date of knowledge rule can also be relevant for young adults who discover later that past care was negligent. While limitation technically starts at age 18, the effective expiry date may move if the claimant did not know of the injury or its negligent cause until after turning 18. For example, if a young adult only becomes aware of a significant medical injury at age 20, the three‑year period may run from that later date of knowledge rather than strictly from the 18th birthday.
Practical Implications for Claimants
Engage a Litigation Friend Early
If a child suffers harm that may give rise to a negligence claim, it is generally advisable for a parent or guardian to consider acting as a litigation friend and starting proceedings before the child turns 18. This can help protect evidence and reduce uncertainty about whether the claim will be valid later.
Consider Expert Medical Evidence
Even if a claim is brought by a litigation friend, claimants will usually need independent medical reports to establish breach of duty, causation and impact - particularly in medical negligence cases. Early expert evidence helps clarify the child's injuries and whether the standard of care was substandard. (General principle; context from medical negligence litigation process)
Beware of Delay
Although limitation does not begin to run until age 18, significant delay in investigating and preparing a claim can still have practical consequences. Witness memories fade, records may become harder to obtain, and experts may be less able to provide reliable opinion if too much time has passed. Initiating legal steps early through a litigation friend can mitigate these risks.
Common Questions
Can a child bring a claim themselves before age 18?
No. Children cannot instruct lawyers or start proceedings on their own. A litigation friend must bring or manage the claim on their behalf.
What if the child only realises they were harmed after age 18?
The clock generally begins at age 18, but if the injury or causal link was discovered later, the claimant may rely on the date of knowledge rule. In practice, this means the three‑year period may start from the later date when the claimant first knew their injury was significant and likely caused by negligence.
Is there any situation where a child's claim has no time limit?
If a person lacks mental capacity (including incapacity due to severe disability), limitation may not run until they regain capacity. In some cases where capacity is never regained, there may be no limitation deadline enforced for bringing a claim, provided a litigation friend acts.
Key Takeaways
Limitation periods for children in negligence cases in England and Wales are tailored to protect minors who cannot pursue legal action themselves. Key points include:
- The three‑year limitation period does not begin until the child turns 18.
- A litigation friend can start proceedings on the child's behalf before adulthood.
- If no proceedings are started in childhood, the now‑adult claimant has until their 21st birthday to bring a claim.
- The date of knowledge rule may affect when the limitation period runs if the injury or cause was only discovered after age 18.
- Special rules also apply in cases of incapacity or death.
Understanding these rules helps ensure that children's rights to compensation are preserved and that legal claims are brought within the correct timeframes.