You may be reading this with a draft email open, a pile of appointment notes beside you, and that familiar knot in your stomach. Something went wrong. You asked for help, explanation, or follow-up, and instead you feel brushed aside, confused, or still stuck with the same problem.
A formal NHS complaint can feel daunting because you're often making it while tired, unwell, or already worn down by the care itself. But a complaint is not you being difficult. It's a recognised route for getting your concerns recorded, investigated, and answered.
Table of Contents
- You Have the Right to Be Heard
- Before You Complain Gathering Your Evidence
- Who to Send Your Formal Complaint To
- How to Write an Effective Complaint Letter
- What to Expect and How to Escalate
- Turning a Complaint into Constructive Change
You Have the Right to Be Heard
If you've been ignored, spoken to badly, denied a clear answer, or left chasing basic follow-up, your reaction makes sense. Many people hesitate because they worry a complaint sounds confrontational. In practice, a formal complaint NHS process is the opposite of a rant. It's a structured way to ask for answers, records, and a written outcome.
In England, the NHS received 256,777 written complaints in 2024/25, which was 6% higher than 241,922 the year before, according to the NHS written complaints data for 2024/25. That matters for one reason. It shows that formal complaints are not unusual or illegitimate. Patients and families use them at scale.
What a formal complaint is really for
A good complaint usually asks for one or more of these things:
- An explanation: What happened, who made the decision, and why.
- An acknowledgement: A clear statement that your concern has been recognised.
- A correction: Records, referrals, coding, or communication put right.
- A practical change: A proper review, a fresh clinical look, or safer handling going forward.
Sometimes people start out wanting “justice” and later realise what they need most is a coherent written account. That written account matters. It creates a paper trail.
Practical rule: If the issue affects your care, access, records, or safety, put it in writing.
A complaint is also part of your wider patient rights. If you need a clearer grounding in those basics before drafting anything, Finally Seen's guide to NHS patient rights is a useful companion.
Why calm, formal complaints often work better
The complaint handler is looking for a problem they can define, investigate, and answer. That's much easier when your complaint is factual, dated, and specific. Anger is understandable, but chronology usually carries more weight than forceful language.
What tends to help is naming the service, identifying the event, describing the impact, and stating the outcome you want. What tends not to help is sending a long message with no dates, no clear request, and no distinction between what happened and how it made you feel.
That balance matters throughout the process. You're allowed to describe harm. You're also trying to make it easy for the organisation to see exactly what it must respond to.
Before You Complain Gathering Your Evidence
Most complaints become stronger before the letter is written. Once you stop trying to remember everything from memory and start building a file, the complaint usually gets sharper, calmer, and harder to dismiss.
A peer-reviewed analysis of NHS complaints found that major complaint categories included clinical treatment, poor attitudes, and failures in written and oral communication, which is one reason communication problems deserve the same attention as obvious clinical mistakes in your draft, as noted in this peer-reviewed NHS complaints analysis.
Start with a working file
Don't rely on one document. Create a folder, digital or paper, and separate material into simple categories.
- Timeline: Start with the first relevant date and list events in order. Include appointment dates, calls, messages, test results, referrals, and promises made.
- Records: Request copies of letters, consultation notes, test reports, discharge summaries, and messages.
- Communications: Save emails, online consultation submissions, text reminders, and any written responses you've had.
- Impact notes: Write down what the problem changed for you. Delayed treatment, worsening symptoms, lost work, avoidable distress, repeated appointments, or being left without a plan.
If another person was present at an appointment or call, ask them to write a short account while it's still fresh. It doesn't need legal language. It just needs to be accurate.
What to capture in your chronology
A useful timeline doesn't try to tell the whole emotional story at once. It does three things well.
First, it pins events to dates. Second, it shows cause and effect. Third, it helps the complaint handler find the right records.
A practical chronology often includes:
- The service involved such as the GP practice, hospital department, clinic, or community team.
- The date or date range of each event.
- Who was involved, if known.
- What happened in one or two factual lines.
- What happened next or what failed to happen.
A complaint with a clear timeline is much easier to investigate than a complaint built around general dissatisfaction.
Evidence is not only medical
People often assume they need dramatic proof. Usually they don't. They need organised proof.
Useful evidence can include:
- Appointment letters and discharge summaries
- Screenshots of portal messages or online forms
- A diary of symptoms and missed follow-up
- Travel receipts or work notes if delay had practical consequences
- A concise witness note from a carer, partner, or family member
If records appear incomplete or inconsistent, note that in your complaint rather than trying to solve it yourself. The job of the investigation is to account for the records.
Decide what outcome you actually want
Many complaints lose force because the ending is vague. “Please look into this” is weaker than “I want a written explanation of why no referral was made, a review of my records, and confirmation of what will happen next.”
Common reasonable remedies include:
- An explanation
- An apology
- A correction to records
- A fresh review or reconsideration
- Assurance that the issue has been escalated internally
- A clear next-step plan for your care
Be realistic about the limits of the complaints route. Some outcomes sit outside it. If you ask for something the process can't deliver, your complaint can drift into frustration instead of resolution.
Who to Send Your Formal Complaint To
A strong complaint sent to the wrong place often stalls before anyone looks properly at the substance. This is one of the most common avoidable mistakes.
In England, NHS guidance says you can complain to the provider or the commissioner, and for GP services the commissioner is the local Integrated Care Board, but not both, and complaints should normally be made within 12 months of the incident, as set out in NHS England's complaints guidance.
Provider or commissioner
If your complaint is about how a service treated you day to day, the provider route is often the most direct. That usually means the GP practice, hospital trust, dental practice, optician, pharmacy, or community service itself.
If your complaint is about commissioning, access, refusal patterns, or a primary care issue where you want the body overseeing the contract to look at it, the commissioner route may be more useful. For GP services in England, that usually means your local ICB.
The key point is choice. Pick one route and be deliberate about it.
- Choose the provider when you want the service to answer for what happened on the ground.
- Choose the commissioner when you think the issue needs oversight beyond the practice or service itself.
- Don't send the same complaint to both at the same time if it's the same issue.
If you're unsure how this differs from informal support routes, this guide on PALS versus a formal complaint helps draw the line.
Where to direct your NHS complaint
| If your complaint is about... | You can complain to... |
|---|---|
| A GP surgery in England | The GP practice or the local ICB |
| Another NHS primary care service in England | The provider or the relevant commissioner |
| An NHS hospital department | The hospital trust or provider |
| Community NHS care | The service provider responsible for that care |
This table is a starting map, not a substitute for checking the service's current complaints contact details.
Scotland and other UK nations
The route changes outside England, so don't assume an English process applies everywhere.
For Scotland, Citizens Advice says NHS complaints can be made in writing, by phone, email, in person, or through an online form. It also says the complaint normally must be raised within 6 months of the event or discovery, and no later than 12 months after the event, with most complaints resolved within 5 working days and a written response within 20 working days, according to Citizens Advice Scotland's NHS complaints guidance.
Scotland's complaints data also show a large formal system. NHS Scotland received 34,220 total complaints in 2024/25, up 3% from 33,273 in 2023/24, while complaints received directly by NHS Territorial and Special Boards rose from 23,876 to 24,531, and complaints closed by NHS boards rose 6% from 21,599 to 22,838, as reported in Public Health Scotland's annual NHS complaints report for 2024 to 2025.
That tells you two things. Formal complaints are common, and timelines matter. If you're in Wales or Northern Ireland, check the local NHS complaints procedure before sending anything.
How to Write an Effective Complaint Letter
Your letter doesn't need legal language. It needs structure. The best complaint letters read as if someone has done the investigator half the job already.
Use a structure that helps the investigator
A practical formal complaint NHS letter usually works best in this order:
- State that it is a formal complaint
- Identify the service and incident
- Set out the chronology
- Describe the impact
- List the questions you want answered
- State the remedy you want
- Ask for a written response
That sounds simple, but most weak letters miss at least two of those.
A clean opening can be as direct as this:
I am making a formal complaint about the care I received from [service name] on [date] and the events that followed.
Then move straight into the facts. Keep each factual point short. One event per paragraph usually works well.
A complaint letter template in blocks
Use these blocks and adapt them.
Opening block
- Your full name
- NHS number if you have it
- Address and contact details
- Date
- Service, clinic, ward, practice, or department
Chronology block
Write this in order, not by importance. For example:
- On [date], I attended [service] and reported [symptoms/issue].
- During that appointment, [decision/action] was taken.
- On [later date], I contacted the service again because [ongoing problem].
- I was told [exact wording if remembered], or no response was provided.
Impact block
It is common for people to either understate or overstate. Aim for concrete effect.
Try wording like:
- This left me without a clear treatment plan.
- The delay meant I remained symptomatic and uncertain about what to do next.
- I had to make repeated contacts to seek follow-up that should have been arranged.
- The way I was spoken to caused significant distress and undermined my confidence in the service.
Questions block
Number these. Don't bury them in prose.
For example:
- Why was [decision] made?
- Why was [referral/test/follow-up] not arranged when this was discussed?
- What records exist of my contacts on [dates]?
- What action will now be taken to address the problem?
A numbered question list often improves the quality of the final response because it's harder to dodge.
After you've drafted the basics, it can help to see a worked example or use a structured drafting service. One option is Finally Seen Ltd, which prepares formal NHS-cited letters and complaint packs for patients who want a documented complaint trail.
A short explainer can also help if you're struggling to get the tone right:
Sample wording you can adapt
Here are phrases that tend to work because they are clear, not dramatic.
I want this complaint investigated as a formal complaint rather than treated as feedback or a service query.
I would like a written response that addresses each of the points and questions set out below.
I am seeking a clear explanation, confirmation of whether my records accurately reflect events, and details of what action will now be taken.
If my complaint has been sent to the wrong team, please forward it promptly to the correct complaints department and confirm that in writing.
These phrases are useful because they reduce wriggle room.
What weakens a complaint letter
Some problems come up repeatedly.
- Too much background: If the first page never reaches the actual incident, the main issue gets buried.
- No remedy sought: If you don't say what would resolve matters, the service may choose the smallest possible response.
- Mixed issues: If three separate complaints are bundled together with no headings, responses become partial and evasive.
- Accusations you can't support: Stick to what happened, what was said, what records show, and what didn't happen.
A complaint doesn't become stronger because it sounds harsher. It becomes stronger when each point can be investigated.
What to Expect and How to Escalate
Submission is the start, not the end. Many patients lose momentum at this point, partly because the post-submission stage is often explained badly.
Healthwatch and NHS England both confirm that if local resolution with the provider or ICB doesn't resolve the matter, the next stage is escalation to the Ombudsman, as explained in Healthwatch's guide to making a complaint.
What happens after local resolution starts
Once you submit, expect an acknowledgement and then some form of local investigation. In practice, the quality of communication varies. Some teams confirm the issues they're investigating. Others send a bare acknowledgement and then go quiet.
Your job at this stage is to stay organised.
- Keep every reply in one thread or folder.
- Check whether they have correctly defined the complaint issues.
- Correct the scope early if they've left out a key point.
- Ask for a target response date if none is given.
If they call you, follow up in writing with a short note confirming what was said. Verbal updates are easy to lose.
How to spot an inadequate response
A poor complaint response often looks polished on the surface. It thanks you for raising concerns, summarises the file, and still avoids the actual questions.
Watch for these warning signs:
- It answers only part of your complaint
- It paraphrases your concerns inaccurately
- It offers apology language without explaining what happened
- It ignores the remedy you asked for
- It relies on records without addressing gaps or contradictions
- It closes the complaint without telling you how to escalate
If a response sounds courteous but leaves your key questions unanswered, it probably isn't a satisfactory resolution.
You don't need to accept a vague letter just because it arrived on headed paper.
When to go to the Ombudsman
If local resolution has failed, the next step in England is the Parliamentary and Health Service Ombudsman. Before you escalate, gather the final complaint response, your original complaint, and your key documents into one clean set.
Your Ombudsman submission is usually stronger if you can say, briefly:
- What your original complaint was
- How the local response fell short
- Which points remain unresolved
- What outcome you are still seeking
Focus on unresolved issues, not every frustration in the process. That discipline matters.
If you need a more detailed walkthrough of this stage, this PHSO complaint guide is a useful practical reference.
People often ask whether to escalate immediately after a disappointing response. My view is simple. Escalate when you can identify the failure clearly. “I'm still upset” is honest but weak. “The response did not answer questions 2 and 4, did not address why no follow-up occurred, and did not explain the record discrepancy” is much stronger.
Turning a Complaint into Constructive Change
A complaint can feel very personal because it usually starts with something personal. Pain, delay, dismissal, fear, confusion. But the strongest complaints don't stay trapped there. They turn experience into a clear, documented account that another person has to answer.
That's why the process is worth doing carefully. A good complaint creates a timeline, preserves evidence, identifies the right body, asks focused questions, and keeps going when the first reply is too thin. It doesn't guarantee satisfaction, but it does make it much harder for the issue to disappear without record.
This matters beyond one letter. A formal complaint can correct records, force explanation, create a paper trail for later escalation, and sometimes prompt changes in how a service handles similar concerns. It also gives you something many patients badly need after a poor experience: a structured way to say, in writing, this happened, it mattered, and it requires an answer.
If you're preparing one now, keep your standard practical and steady. Be specific. Attach evidence. Ask for a written response. If the first stage fails, move up the chain.
You're not asking for a favour. You're using a recognised route to be heard.
If you need help turning messy notes, missing follow-up, and unanswered GP concerns into a clear written record, Finally Seen Ltd offers formal NHS-cited letters, complaint packs, and plain-English guides designed to help patients build a documented paper trail before issues are minimised or lost.