NHS Pays Up to £3,000 Per ADHD Assessment as Waiting Lists Soar

The NHS is facing growing financial pressure from the rising demand for ADHD and autism assessments, with some health organisations reportedly paying private providers thousands of pounds to help reduce lengthy waiting lists.

According to a report from The Telegraph, NHS trusts and regional health bodies are paying private clinics as much as £3,000 for an individual ADHD or autism assessment. The figures have raised concerns about the increasing cost of providing assessments and the pressure being placed on other areas of healthcare.

The issue comes at a time when demand for neurodevelopmental assessments has increased substantially across England. Large numbers of people are waiting for assessments through NHS services, while health organisations are turning to private providers to help address backlogs.

Growing pressure on NHS budgets

The scale of spending varies considerably between regions. Figures cited in the report from the NHS Alliance indicate that one area saw expenditure increase from £1.75 million in 2024-25 to £18 million in 2025-26.

Another example comes from Cheshire and Merseyside, where spending on adult ADHD services reportedly increased from £11 million in 2023-24 to £38 million in 2024-25. Spending was projected to reach £51 million during the 2026-27 financial year.

These increases illustrate the financial challenge facing NHS organisations as more people seek assessments.

The NHS Alliance, which represents health trusts and hospitals, has described the rise in spending as extremely rapid. Its mental health network director, Rebecca Gray, reportedly warned that resources directed towards ADHD and autism assessments can create financial pressure in other parts of the healthcare system.

This does not necessarily mean that assessments are unnecessary. For many people, receiving an appropriate assessment can be an important step towards understanding their difficulties and accessing suitable support. However, the speed at which demand and expenditure have increased has prompted questions about how services should be organised and funded.

Why are private clinics being used?

One factor behind the expansion of private provision is the NHS Right to Choose system.

Under this arrangement, eligible patients who are referred for certain NHS services can have greater choice over where they receive treatment or assessment. Where the service is provided by an eligible organisation, the NHS can cover the cost.

The arrangement has become particularly significant for ADHD assessments as NHS waiting lists have grown.

The Telegraph reported that around 800,000 people in England were waiting for an NHS ADHD assessment. It also reported that approximately 100,000 private ADHD assessments were funded by the NHS through the scheme during the previous year.

For patients facing lengthy waits, access to another provider can appear to offer a faster route to assessment. For the NHS, however, widespread use of private providers can result in substantial additional expenditure.

The price paid for assessments also varies dramatically. According to the NHS Alliance figures cited by The Telegraph, fees range from approximately £300 to £3,000.

That variation has led to calls for greater consistency in pricing and standards.

Calls for a national approach

Rebecca Gray has called for a national tariff covering ADHD and autism assessments. A standardised approach could establish clearer expectations around what NHS-funded providers should charge for comparable assessments.

There are also calls for a national specification defining what constitutes a high-quality assessment.

Such a framework could potentially address two separate concerns. The first is cost. NHS organisations would have clearer guidance about appropriate prices for services. The second is quality. Patients and healthcare professionals could have a more consistent understanding of what an assessment should involve.

The challenge is that assessments are not always identical. Some individuals have relatively straightforward presentations, while others may have complex circumstances requiring more extensive investigation.

Any national system would therefore need to account for differences in complexity without allowing prices or standards to become excessively inconsistent.

Concerns about quality and consistency

The rapid growth of private assessment services has also generated concerns about how patients navigate the expanding market.

The Nuffield Trust has described the situation as a difficult environment for patients trying to identify appropriate providers. The organisation's chief executive, Thea Stein, reportedly said that the state had struggled to keep pace with the dramatic increase in demand for ADHD and autism services.

The concern is not simply about whether an assessment is delivered quickly. A diagnosis can have significant consequences for an individual, including decisions about treatment, education, employment and support.

That makes consistency and clinical quality particularly important.

A faster assessment does not automatically mean a better assessment. Patients need confidence that providers are following appropriate clinical processes and that conclusions are based on sufficient evidence.

Complaints are also increasing

The financial figures come amid wider concerns about NHS services for people with ADHD and autism.

The Telegraph reported earlier this week that complaints relating to NHS care for people with ADHD or autism had more than tripled over a five-year period, according to the health ombudsman.

The combination of rising demand, long waits, increasing expenditure and complaints about care suggests that the current system is under considerable strain.

The government is also preparing for an inquiry into the increase in ADHD and autism diagnoses. The outcome could influence how services are commissioned and how future demand is estimated.

Understanding demand is particularly important for long-term planning. If health authorities cannot accurately anticipate how many people will seek assessment and what support they may subsequently require, services can quickly become overwhelmed.

What happens next?

The NHS has acknowledged that waiting times have been too long for many families and said action is being taken to improve access while ensuring that NHS-funded services provide value for money.

NHS England is also reportedly considering how guide prices for ADHD and autism assessments could be developed from next year.

A more consistent national approach could therefore become an important part of future reforms.

The wider question is how the NHS can respond to rapidly increasing demand without allowing costs to escalate uncontrollably or creating unacceptable delays for patients.

Private providers may have a role in helping address backlogs, particularly where NHS capacity is limited. However, reliance on external providers also creates questions about pricing, oversight and consistency.

Ultimately, the challenge is not simply about the cost of a single assessment. It is about designing a system capable of providing timely, reliable and appropriate care to people seeking help.

With hundreds of thousands of people reportedly waiting for ADHD assessments and spending rising sharply in some regions, the pressure on NHS services is unlikely to disappear quickly.

The coming months may therefore be important in determining whether England moves towards a more standardised model for ADHD and autism assessments, including clearer pricing and quality requirements.

For patients, the central issue remains straightforward: access to an assessment should not depend on navigating an increasingly complicated system. At the same time, healthcare organisations need a sustainable way to meet demand while protecting resources for other essential NHS services.