To bring clinical negligence claims in the UK, you need to show that a healthcare professional’s care fell below a competent standard, that this breach caused you injury, and that you are acting within the three-year limitation period. The rules apply the same way to NHS and private treatment, and the same three legal elements decide every case regardless of how serious the harm looks on the face of it.1NHS Resolution. Advice for Claimants
What You Have to Prove
Every claim rests on three elements: a duty of care, a breach of that duty, and causation linking the breach to your injury.1NHS Resolution. Advice for Claimants If any one falls apart, the claim fails.
Duty of Care
A duty of care arises automatically the moment a healthcare professional accepts responsibility for your treatment. Every clinician, NHS or private, owes a duty to act in your best interest.2GOV.UK. Appropriate Clinical Negligence Cover – Summary of Responses This element is almost never in dispute. The real fights happen over breach and causation.
Breach of Duty
To show a breach, you need to demonstrate that your treatment fell below the standard a competent professional in that field would have provided. The courts assess this through the test in Bolam v Friern Hospital Management Committee [1957]: a doctor is not negligent if they acted in line with a practice accepted as proper by a responsible body of medical professionals skilled in that area. If a group of competent peers would have done the same thing, the treatment is generally not considered negligent.
The House of Lords sharpened this test in Bolitho v City and Hackney Health Authority [1998] by adding a logic check. The body of medical opinion supporting the treatment must have a rational basis, and a judge can reject expert evidence that, while honestly held, cannot withstand rational analysis. That prevents defendants from assembling a handful of sympathetic experts to endorse care that no reasonable clinician could defend.
Causation
Proving substandard care is not enough on its own. You must also show that the breach actually caused your injury. Courts apply the “but for” test: would the harm have happened anyway, even if the clinician had not been negligent?1NHS Resolution. Advice for Claimants If a condition would have progressed to the same outcome regardless of treatment, the claim fails on causation. This is where cases are most often lost, because separating the effect of a negligent act from the natural course of a disease usually requires detailed medical evidence and competing expert opinions.
Informed Consent
There is a separate route where a doctor failed to properly inform you about the risks of treatment. The Supreme Court’s decision in Montgomery v Lanarkshire Health Board [2015] moved away from the Bolam test for consent questions. Doctors must now tell you about any risk that a reasonable person in your position would consider significant, and about any reasonable alternative treatments. A low-probability risk of serious harm can still be material if it would matter to a reasonable patient making that decision. Handing you a consent form to sign does not satisfy this duty; the doctor must have a genuine conversation with you about the risks and the alternatives.
The Three-Year Deadline
You generally have three years to issue court proceedings from the date the negligent treatment occurred.3Legislation.gov.uk. Limitation Act 1980 – Section 11 Miss the deadline and the defendant can have your claim struck out. The starting date is not always straightforward, and a few exceptions can extend or pause the clock.
Date of Knowledge
The three-year period can instead run from the date you first knew, or reasonably should have known, that you had a significant injury, that it was connected to the treatment, and who was responsible.4Legislation.gov.uk. Limitation Act 1980 – Section 14 This matters where harm only becomes apparent later. A misdiagnosed cancer might not reveal itself until the disease has advanced, and your three years would run from when you realised (or should have realised) the diagnosis was wrong, not from the date the doctor first assessed you.
Children and People Who Lack Capacity
The Limitation Act 1980 treats anyone under 18 or lacking mental capacity to conduct legal proceedings as being “under a disability.”5Legislation.gov.uk. Limitation Act 1980 – Section 38 For children, the three-year clock does not start until their 18th birthday, giving them until age 21. For someone who lacks capacity, the clock does not start at all while the disability continues. If capacity is later regained, the three years run from that point. Birth injury claims can therefore be brought decades after the event.
Court Discretion
Even where the limitation period has expired, a court has discretion to allow the case to proceed if it considers it fair to do so.6Legislation.gov.uk. Limitation Act 1980 – Section 33 This is rare and unpredictable. The court weighs the length and reasons for the delay, the effect of delay on the available evidence, and the defendant’s conduct. Do not rely on it as a strategy. Treat the three-year deadline seriously.
Filing an NHS complaint is not required before a claim and does not pause the limitation clock, so keep the deadline in mind whatever else you are doing.
Building the Evidence
A claim starts with your medical records. Under the Data Protection Act 2018, you have the right to request all health records held about you by any NHS or private provider through a Subject Access Request.7House of Commons Library. Accessing Health Records Providers generally cannot charge for this.8Information Commissioner’s Office. Health Information Ask early.
Duty of Candour
Providers are legally required to be open with you when something goes wrong. The duty of candour, enforced by the Care Quality Commission, obliges providers to tell you when a safety incident has occurred, apologise, and explain the short- and long-term effects.9Care Quality Commission. Regulation 20 – Duty of Candour The General Medical Council imposes a parallel professional duty on individual doctors.10General Medical Council. The Professional Duty of Candour Any internal investigation report or disclosure letter you receive under this duty can be valuable evidence.
Expert Medical Evidence
No claim succeeds without an independent medical expert who can confirm that treatment fell below the expected standard and caused your injury. Under the Civil Procedure Rules, an expert’s overriding duty is to help the court, not to advocate for the side that hired them.11Justice UK. Civil Procedure Rules Part 35 – Experts and Assessors Their report must set out their qualifications, the material they relied on, the range of opinions on the subject, and a statement confirming they understand their duty to the court. A solicitor will usually obtain an initial report before the formal process starts to assess whether the claim has realistic prospects.
Other Documentation
Useful supporting material includes witness statements from family members who observed your treatment or its aftermath, a personal diary of your symptoms and how they have affected daily life, and financial records covering lost earnings, travel to appointments, and any private care or equipment you have paid for. These records feed directly into the financial side of any compensation.
How the Process Runs
Clinical negligence cases follow a structured process designed to push settlement without a full trial. Most cases do settle, but rarely quickly.
Pre-Action Protocol
Before issuing court proceedings, both sides are expected to follow the Pre-Action Protocol for the Resolution of Clinical Disputes. Your solicitor sends a formal Letter of Claim setting out the allegations, the injuries you suffered, and the basis for holding the defendant responsible. The defendant then has four months to investigate and provide a detailed response, either admitting liability, denying it, or making a partial admission.12Justice UK. Pre-Action Protocol for the Resolution of Clinical Disputes
Part 36 Offers
Once liability is in play, either side can make a formal Part 36 offer at any stage. These carry serious financial consequences. If you reject the defendant’s Part 36 offer and then fail to beat it at trial, you will normally have to pay the defendant’s costs from the date the offer expired. If you make a Part 36 offer that the defendant rejects and the court awards you at least as much, the defendant faces enhanced interest on damages and costs, plus a penalty of up to 10% of the amount awarded, capped at £75,000.13Justice UK. Civil Procedure Rules Part 36 – Offers to Settle These rules put real pressure on both sides to settle realistically.
Court Proceedings
If negotiations fail, proceedings are issued. That triggers formal case management: disclosure of documents, exchange of expert evidence, and a trial timetable. Many cases still settle even after proceedings are issued, often at the door of the court. Full trials are relatively uncommon, but preparing for one is expensive and time-consuming, which is exactly why realistic Part 36 offers tend to bring parties to the table.
How Claims Are Funded
These cases are expensive to run, mainly because of the medical expert reports. Sorting out funding is essential before you commit.
Conditional Fee Agreements
Most clinical negligence claims are funded through Conditional Fee Agreements, commonly known as “no win, no fee.” Under a CFA, you pay nothing in solicitor’s fees if the claim is unsuccessful. If you win, your solicitor takes a success fee from your compensation. The success fee is capped by statute and cannot exceed 25% of the damages awarded for pain, suffering, and past financial losses.
After-the-Event Insurance
Even under a CFA, you can still be exposed to costs if the claim fails. The defendant’s legal costs and your own disbursements (expert report fees, court fees, barrister’s fees) add up quickly. After-the-event insurance covers these risks. The premium is usually deferred and only payable if you win, coming out of your compensation. Solicitors typically arrange this at the outset.
Existing Legal Expenses Cover
Check your home or car insurance. Many policies include legal expenses cover as a secondary feature, which can fund the costs of pursuing a clinical negligence claim. If you have such a policy, it may cover disbursements and expert fees without the need for separate ATE insurance.
Legal Aid
Public funding for clinical negligence was largely removed by the Legal Aid, Sentencing and Punishment of Offenders Act 2012. The only remaining exception covers claims for neurological injury caused by clinical negligence during pregnancy, birth, or within eight weeks of birth, where the injury leaves the individual severely disabled.14Legislation.gov.uk. Legal Aid Sentencing and Punishment of Offenders Act 2012 – Schedule 1 Part 1 Outside that narrow category, legal aid is not available.
What You Can Recover
Compensation splits into two broad categories, and the distinction matters when evaluating any settlement offer.
General Damages
General damages compensate you for things that cannot be precisely calculated in monetary terms: pain, suffering, and loss of amenity (the impact on your quality of life and ability to do things you previously enjoyed). Courts assess these by reference to the Judicial College Guidelines, which set bracket ranges for different injuries. A very severe brain injury falls within a bracket running into hundreds of thousands of pounds; a moderate limb injury sits significantly lower. The guidelines are not binding but are the primary reference point.
Special Damages
Special damages cover your actual financial losses, past and future. Past losses include earnings you have already missed, private treatment or therapy you have paid for, travel to appointments, and equipment or home adaptations. Future losses can dwarf past losses in serious cases: lifetime care costs, future lost earnings, adapted accommodation, and ongoing therapy are all recoverable. In birth injury cases involving cerebral palsy, future care costs alone can reach several million pounds.
Periodical Payments
For large claims with ongoing future losses, the court must consider awarding compensation as regular periodic payments rather than a single lump sum. Periodical payments protect you against the risk of a lump sum running out if you live longer than expected or care costs increase. Payments from NHS bodies satisfy the statutory security requirement because the source is a government health service body.15Legislation.gov.uk. Damages Act 1996 Most high-value settlements combine a lump sum for past losses with periodical payments for future care.
Interim Payments
If your claim is strong on liability but the final valuation will take time, you can apply for an interim payment. The court will order one if satisfied that you would receive a substantial amount of damages at trial. Interim payments can cover immediate needs like rehabilitation, adapted equipment, or urgent care.
Claims After a Death
Where clinical negligence causes a death, the family can bring a claim under the Fatal Accidents Act 1976. The limitation period is three years from the date of death, or from the date the personal representative first had knowledge that the death was connected to negligent treatment.3Legislation.gov.uk. Limitation Act 1980 – Section 11
Dependency Claims
Eligible dependants can claim for the financial support they have lost due to the death. That covers the deceased’s income that would have been shared with the family, contributions to household costs, and the value of practical services the deceased provided, such as childcare and home maintenance. The range of qualifying dependants is broad, including spouses, civil partners, cohabitants who lived with the deceased for at least two years, children, parents, and siblings.16Legislation.gov.uk. Fatal Accidents Act 1976 Only one action can be brought on behalf of all dependants collectively.
Bereavement Award
The Fatal Accidents Act provides a fixed statutory bereavement award of £15,120.16Legislation.gov.uk. Fatal Accidents Act 1976 Only certain people can claim it: the spouse or civil partner, a cohabiting partner who lived with the deceased for at least two years, or the parents of a child who was under 18 and had never married or entered a civil partnership. Where more than one person qualifies, the award is split equally. Adult children who lose a parent, and parents who lose an adult child, are not eligible. The amount has not been updated since 2020.