How to File a Medical Negligence Claim in the UK: A Step-by-Step Guide
Published 21st of January 2013·Updated 6 April 2026
Reviewed by: Reviewed for accuracy April 2026
If you received medical treatment in the UK that made your condition worse rather than better, you may have grounds for a clinical negligence claim. You generally have three years from the date of the incident to begin legal proceedings. Acting promptly gives you the best chance of a successful outcome and ensures crucial evidence is preserved.
Short Summary
Clinical negligence (also called medical negligence) occurs when a healthcare professional's treatment falls below the standard a reasonably competent practitioner would provide, and that substandard care causes you harm.
You have three years from the date of the negligent treatment to file a claim. For children, the three-year window starts on their 18th birthday. Courts can extend this deadline in limited circumstances, but you should not rely on that.
Most clinical negligence solicitors work on a no-win, no-fee (conditional fee agreement) basis, meaning you pay nothing upfront. The NHS Resolution body handles claims against NHS hospitals on behalf of the government.
If you are unsure whether you have a case, a free initial consultation with a clinical negligence solicitor or a call to the Patient Advisory and Liaison Service (PALS) can help you understand your options.
Step 1: Seek corrective treatment first
Your health comes before any legal process. If the original treatment caused harm, see another doctor as soon as possible to begin recovery. Do not delay treatment while you work out whether to pursue a claim. Any costs you incur for corrective treatment can be recovered as part of your claim as "special damages," but only if you keep receipts and records.
Step 2: File a complaint with the hospital or NHS trust
You should raise a formal complaint with the facility where the negligence occurred. If it was an NHS hospital or GP surgery, submit your complaint to the provider directly; they are required to respond within 25 working days under NHS England guidelines. Filing a complaint creates an official record and may prompt a review that uncovers further evidence.
If you are unhappy with the response, you can escalate to the Parliamentary and Health Service Ombudsman (PHSO) at no cost. The PALS service at your local NHS trust can help you navigate the complaints process.
Step 3: Obtain a copy of your medical records
Request your full medical records from every provider involved in your treatment. Under the UK General Data Protection Regulation (UK GDPR), healthcare providers must supply these within one month of your request, free of charge. Your records are the foundation of any legal claim. They establish the timeline, the treatments you received, and who was responsible.
Ask for imaging results, pathology reports, surgical notes, and discharge summaries, not just GP letters. The more complete your records, the stronger your solicitor's assessment will be.
Step 4: Instruct a clinical negligence solicitor
Clinical negligence is a specialist area of law. Choose a solicitor who is a member of the Law Society's Clinical Negligence Accreditation Scheme or the specialist panel run by AvMA (Action against Medical Accidents). A specialist solicitor will assess whether:
- The care you received fell below a reasonable standard
- That substandard care directly caused your injury or worsening condition
- You have a realistic prospect of recovering compensation
Most clinical negligence solicitors offer a free initial assessment. If they take your case, they will typically do so on a no-win, no-fee basis.
Step 5: Understand what compensation you can claim
Compensation in clinical negligence claims falls into two categories:
| Type of damages | What it covers |
|---|---|
| General damages | Pain, suffering, and loss of amenity (the impact on your quality of life) |
| Special damages | Financial losses including lost earnings, private medical costs, care costs, travel, and adaptations to your home |
The amount depends on the severity of harm and the financial impact on your life. The Judicial College Guidelines (used by courts and solicitors) set out the ranges for general damages by injury type.
Step 6: Adhere to the time limit
The standard limitation period for clinical negligence claims in England and Wales is three years from either the date of the negligent act or the date you first knew (or reasonably should have known) that negligence had caused your injury. For children, the three-year clock starts on their 18th birthday, giving them until they are 21. For adults who lack mental capacity, the limitation period may not run at all.
Courts have discretion to allow late claims in exceptional circumstances, but this is not guaranteed. Start the process as early as you can.
FAQ
How long does a medical negligence claim take?
Most clinical negligence claims take between one and four years to resolve. Straightforward cases involving clear liability may settle in 12 to 18 months. Complex cases, particularly those involving catastrophic injury or disputed causation, can take longer. Your solicitor should give you a realistic timeline at the outset.
Do I need to pay anything upfront?
Most clinical negligence solicitors work on a conditional fee agreement (no-win, no-fee). You pay nothing upfront, and if you lose, you pay nothing. If you win, the losing party (usually the NHS trust or private provider) pays your legal costs. Ask your solicitor to explain the funding arrangements clearly before you sign anything.
Can I claim against a private hospital or GP?
Yes. Claims can be brought against any healthcare provider, whether NHS or private. Private providers are typically insured through specialist medical defence organisations such as the Medical Protection Society or the Medical Defence Union.
What if the patient died as a result of negligence?
A family member or the estate of the deceased can bring a claim under the Fatal Accidents Act 1976 and the Law Reform (Miscellaneous Provisions) Act 1934. The three-year limit runs from the date of death or the date the family became aware that negligence caused the death.
What is PALS and how can it help?
The Patient Advisory and Liaison Service (PALS) is a free NHS service that helps patients, families, and carers understand their options after a poor experience. PALS can explain the complaints process, put you in touch with an independent complaints advocate, and help you access your records. Contact your local NHS trust to find your PALS team.
Will making a claim affect my future NHS treatment?
No. The NHS has a legal duty to provide care regardless of whether you have made a complaint or a legal claim. Concerns about being treated differently are understandable but are not borne out in practice. Your care team may change if there is a conflict of interest, but the standard of care you receive should not be affected.