How soon after being injured do you need to bring a personal injury claim?

Understanding injury claim time limits, exceptions, and what matters most in England and Wales.

How long do you have to make your injury claim?

If you’re injured in an accident in England or Wales, you usually have three years to start a personal injury claim. Broadly, this doesn’t change with the type of incident or accident and would apply equally to a road traffic collision, a workplace accident or a ‘public liability’ claim such as a ‘trip and slip’ on someone else’s premises.

However, there are exceptions – such as for children or certain types of incidents – which can alter this timeframe. Acting promptly, regardless of the circumstances of your accident or the severity of your injuries, ensures the best chance of a successful outcome.

Why timeframes matter – don’t leave it too late

Time isn’t just a detail; it can be the difference between having your case heard and bringing a successful claim or being shut out of the legal system completely. Many people only discover the time limits when it’s too late. We have often been approached by clients who waited, hoping their injuries would resolve, only to find that the window for filing a claim had closed. This can have a direct impact on someone’s life, for example, by leaving them out of pocket because they have been unable to work in the same role or at the same level since their injury. The law is clear about deadlines, but navigating them can be less straightforward. Missing a deadline may mean losing the chance for financial compensation, and that’s a practical impact you can’t ignore.

Does the timeframe vary by accident or injury type?

Generally, the three-year rule applies across the board. Whether it’s a motorcycle collision, a workplace injury, or a fall in a supermarket, the clock starts ticking from the ‘date of knowledge’, when you first knew you were injured and who was probably responsible.

However, there are quirks. For example, industrial disease claims often begin when symptoms appear, not when the exposure happens. This is perhaps most often seen in cases of mesothelioma or other types of asbestos-related disease, where the disease can lie dormant for several decades before symptoms develop.

Medical negligence cases follow the same principle. So, while the general limit is three years, it can be more complicated depending on how and when you realise harm has occurred. The bottom line is that it is safer to talk to a personal injury claim specialist sooner rather than later – you cannot lose anything by doing so, but delaying could prove expensive.

Does age make a difference? Adults vs children

Yes, age changes everything. For adults, the three-year period starts from the date of the accident or the date of knowledge of the injury. For children, though, the countdown doesn’t begin until their 18th birthday. This means a child injured at age 10, for example, has until they turn 21 to bring a claim. In practice, parents or guardians can claim earlier on their behalf, but the extended deadline offers crucial protection for younger victims. It’s one of those quietly fair aspects of the legal system.

Does mental capacity make a difference?

Yes, a lack of mental capacity can affect injury claims, but if handled effectively, it should not affect the eventual outcome. In order to bring a personal injury claim, an adult needs to have mental capacity. If the person who needs to bring the claim lacks capacity, they will need a ‘litigation friend’ to act on their behalf. This applies equally whether mental capacity was lost as the result of the accident and injury, or whether it was pre-existing, for instance, if an elderly person with advanced dementia was then involved as a passenger in a road traffic collision.

There are standard procedures for determining whether someone still has capacity, or for the purposes of bringing a claim, now lacks capacity, and our lawyers will be happy to advise on these. The starting point is that people are assumed to have capacity until proven otherwise. However, it is dealt with on a decision- and time-specific basis, so someone who can choose what they would like to eat or wear is not necessarily able to bring an injury claim.

There is a small group of people to whom the three-year rule doesn’t apply in any event – those who were injured as a child and who also lack capacity. Ashtons’ medical injury lawyers have historically helped families to bring claims where parents have looked after a child who lacked capacity following a birth injury until they were well into adulthood before realising that help was needed and available. Fortunately, instances like that are now rare and information about the right to make an injury claim early on is widely available.

What happens if you start a claim and become unable to continue it?

It is not uncommon for an individual who has been injured to begin their personal injury claim but then be unable to conclude it themselves due to a deterioration in their health. As with a lack of mental capacity at the start of a claim, if someone no longer has the capacity to manage their own claim, then a litigation friend can step in and act on their behalf.

Sadly, in some personal injury cases, the person who started the injury claim dies before the claim concludes. Whether this is as a result of the injury or from an unrelated illness, the personal injury claim can be continued by the person’s ‘estate’. Any settlement obtained will then become part of the estate and pass in line with the person’s wishes in their Will, assuming they have one. The value of the claim may, of course, be affected by the person’s death, most commonly resulting in a lower value because the person is no longer going to need long-term care and support.

Legal terms explained

• Limitation period – The ‘limitation period’ is simply the legal term for the deadline to start court proceedings. If you miss it, your claim probably won’t be heard, unless rare exceptions apply. Lawyers often refer to this as being ‘out of time’.
• Date of knowledge – ‘Date of knowledge’ means the moment you knew, or ought to have known, you were injured and someone else was responsible. These terms pop up often, so it’s worth understanding them from the outset.

Practical implications: What happens if you miss the deadline?

If the deadline passes, the court may refuse to consider your claim. There are occasional allowances, such as if you were mentally incapacitated at the time, or new evidence emerges, but these are not guaranteed. Our lawyers have witnessed situations in which late claims have been dismissed, leaving clients frustrated and unable to claim the compensation they might otherwise have been due. The practical lesson: act early, even if you’re unsure. It’s better to ask questions than risk missing out. You should also keep records; details fade with time.

Current trends and examples: Recent cases and news

The last few years have seen an increase in workplace injury claims, partly due to increased awareness following news coverage of unsafe working conditions. Courts remain strict about timeframes, as seen in several high-profile cases where claimants were ‘out of time’ despite compelling stories. The Covid-19 pandemic led to some flexibility in exceptional circumstances, but this is narrowing again. Staying informed matters—what’s true today may shift slightly tomorrow.

There are currently around 2,700 new cases of mesothelioma diagnosed in the UK each year. This figure is declining slightly over time as the number of people exposed to asbestos in the workplace, particularly in the construction industry, falls. The highest incidence of the disease is now being seen in men in their late 80s who were exposed in the 1950s and 1960s.

The most recent annual Government statistics show that over 29,000 people were killed or seriously injured in road traffic collisions. Incidents on the road remain the most frequent cause of injuries, leading clients to come to us for assistance with a claim.

Contact our Personal Injury solicitors today

Our personal injury lawyers have expertise across a wide range of injury claims. In particular, they have a track record of persevering to help clients obtain the compensation they genuinely deserve after suffering life-changing injuries such as brain injury, amputation or spinal injury. If we are contacted very soon after an incident and an injury occurs, we may be able to help you obtain early interim payments or rehabilitation support to help you get your life back on track.

If you believe we can assist you when pursuing a Personal Injury claim, please get in contact with us on 0330 404 0777 or complete our online enquiry form.

Our experienced team of lawyers will be able to offer advice and guide you through every step of the claims process, and our in-house client support and rehabilitation team can help support you through your recovery.