How to check a claim about NHS waiting lists and waiting times
Most claims about 'the NHS waiting list' refer to NHS England's monthly referral to treatment (RTT) statistics, which count open patient pathways in England, not people. To check a claim, confirm the nation, the measure (list size, 18-week performance, long waits or median wait), the month, and whether the series has a break. The Office for Statistics Regulation has published guidance and letters on exactly these points, and they are the best official reference when a claim is disputed.
Step 1: identify which waiting list
Health is devolved, so each nation publishes its own figures:
England: NHS England's referral to treatment (RTT) waiting times , published monthly. See how long the NHS waiting list is .
Scotland: Public Health Scotland's stage of treatment statistics.
Wales: the Welsh Government's NHS activity and performance summary .
Northern Ireland: the Department of Health's hospital waiting times statistics .
A UK-wide "waiting list" figure does not exist as an official statistic. If a claim says "the NHS" without a nation, it almost always means England. For the other nations see waiting times in Scotland, Wales and Northern Ireland .
Also check which list. RTT covers planned consultant-led treatment. A&E, cancer, diagnostics and ambulance times are separate statistics; see A&E waiting times and cancer waiting times .
Sources: referral to treatment (RTT) waiting times, NHS activity and performance summary, hospital waiting times statistics
Step 2: pathways are not people
The RTT waiting list counts pathways. In a letter of 10 July 2026, the Office for Statistics Regulation (OSR) explained that the statistics "are designed to measure patient pathways (the total time from a GP referral to the start of consultant-led treatment). A single patient may have more than one referral pathway open at the same time", so "counts of pathways do not correspond directly to the number of individual people waiting for care, and should not be interpreted as such." ( OSR letter on NHS England elective waiting time statistics .)
The same letter notes that NHS England's recent publications include "indicative estimates of the number of unique patients alongside pathway counts". So:
"7 million people are waiting" needs the unique patient estimate, not the pathway total;
"one in eight people in England is on a waiting list" divides pathways by population, which overstates the share.
OSR's April 2026 statement on planned care waiting times said claims of this kind in Wales and Scotland had been "incorrectly calculated on the number of ongoing waits and not the number of individuals waiting for treatment".
Sources: OSR letter on NHS England elective waiting time statistics, statement on planned care waiting times
Step 3: match the measure
One monthly RTT release contains several headline measures. Make sure the claim uses the right one:
Size of the list: incomplete pathways at the end of the month.
18-week performance: the percentage of incomplete pathways waiting under 18 weeks. The Handbook to the NHS Constitution sets a right to "start your consultant-led treatment within a maximum of 18 weeks from referral for non-urgent conditions", subject to exceptions; see referral to treatment .
Long waits: numbers waiting over 52, 65 or 78 weeks.
Median wait: half of pathways have waited less than this.
Activity: completed pathways (people starting treatment) in the month.
A list can grow while the share waiting under 18 weeks improves, or shrink while long waits rise. A claim about one does not settle the others.
Source: Handbook to the NHS Constitution
Step 4: check for breaks in the series
Changes to what is counted can move the total without any change in waiting. The clearest official example is in a June 2024 letter from the Chair of the UK Statistics Authority about a claim that waiting lists had been cut "five months in a row".
From February 2024, community service pathways were no longer reported in RTT data. NHS England estimated the effect at "around 36,000". The reported list fell by 36,198 between end-January and end-February, so once the change was allowed for, the fall was "around 198". The letter concluded that the statement "was supported by the data, but greater transparency around the discontinuity in the time period being referred to would have better supported understanding."
Lesson: when a month-to-month change is small, check the release notes for a break in the series before treating it as a real change. Also check whether any providers did not submit data that month, as NHS England now includes estimates for missing provider data.
Source: June 2024 letter from the Chair of the UK Statistics Authority
Step 5: be careful with removals and cross-border comparisons
Removals. Pathways leave the list when treatment starts, but also when they are closed without treatment. OSR's July 2026 letter said the statistics "do not yet clearly distinguish between patients who have been treated and those who are removed without treatment". A falling list is not by itself proof that more people were treated; check the completed pathways figure.
Comparing nations. OSR's April 2026 statement warns that "health statistics are not fully comparable across the UK". For example, Wales's RTT statistics include some pathways that are excluded from England's headline figures, and different lists "should not be added together to produce an overall total". See how to compare the four nations .
Worked example: checking "the waiting list fell this month"
Find the month the claim refers to and open that month's RTT release, not the latest one.
Compare incomplete pathways at the end of that month with the end of the previous month, using the same series (including or excluding estimates for missing data).
Read the release notes for any change in counting or missing submissions.
Check whether the 52-week and 18-week figures moved the same way.
Write the result with its period: "Incomplete RTT pathways in England fell by X between end-June and end-July (NHS England, published [date])."
The next RTT release, covering September 2026, is listed on GOV.UK's statistics announcements for 12 November 2026. For the latest headline see our NHS waiting list key figure .
Source: statistics announcements
Checklist
Nation identified (England, Scotland, Wales, Northern Ireland)
List identified (RTT, A&E, cancer, diagnostics)
Pathways not described as people
Measure matched (size, 18 weeks, long waits, median)
Month and publication date noted
Release notes checked for breaks in the series
Completed pathways checked alongside list size
Official sources used in this guide
Sources: NHS England: RTT waiting times statistics, OSR: letter on NHS England elective waiting time statistics (July 2026), OSR: statement on planned care waiting times across the UK (April 2026), UK Statistics Authority: letter on NHS waiting lists (June 2024), GOV.UK: RTT statistics for September 2026, release announcement, Handbook to the NHS Constitution for England, Welsh Government: NHS activity and performance summary, Department of Health (NI): hospital waiting times statistics
Questions
Is the waiting list the number of people waiting?
No. It counts pathways, and one person can have several. NHS England also publishes an indicative estimate of unique patients.
Source: NHS England: RTT waiting times statistics
What is the 18-week target?
The NHS Constitution gives patients in England a right to start consultant-led treatment within a maximum of 18 weeks from referral for non-urgent conditions, with exceptions. The RTT statistics report the share of pathways waiting under 18 weeks.
Source: NHS England: RTT waiting times statistics
Can I compare England with Wales or Scotland?
Only with care. The measures differ, and OSR advises against direct comparison without adjustment and explanation.
Source: NHS England: RTT waiting times statistics
Where can I check my own hospital?
See how to check waiting times for a hospital .