The UK is facing an unprecedented demand for autism and ADHD assessments. NHS waiting lists range from five to twenty years, leaving families and adults in limbo. This surge has created a critical need for well-trained assessors, professionals who can provide clarity, compassion, and evidence-based reports.

Becoming an assessor is not only a sustainable career path, but also a deeply rewarding one. It offers the chance to make a difference while building a flexible, future-proof profession.

Why Assessors Matter

Assessments are often life-changing. For many families, a clear diagnosis is the first step in unlocking support at school, in the workplace, or in healthcare.

“Being an assessor is about more than tools and checklists,” says Sarah Phelan, CEO of Autism Services Group (ASG). “It’s about hearing people’s stories, validating their experiences, and giving them a way forward.”

Career Pathways After Training

Training in diagnostic tools such as ADOS-2 (Autism Diagnostic Observation Schedule), ADI-R (Autism Diagnostic Interview – Revised), and DIVA-5 (Diagnostic Interview for ADHD) opens multiple professional routes:

• NHS roles – Working within CAMHS or adult neurodevelopmental teams.
  
  

• Private practice – Running your own clinic or subcontracting for existing services.
  
  

• Global opportunities – These tools are recognised internationally, creating demand abroad.
  
  

• Education and advocacy – Helping schools, charities, and local authorities improve referrals and awareness.
  
  

• Research and consultancy – Shaping policy and contributing to academic studies.
  
  

🔗 ASG Training Programmes

Who Can Train?

Requirements vary, but in the UK emphasis is placed on clinical knowledge and supervision rather than just job titles. Psychologists, psychiatrists, occupational therapists, speech and language therapists, and specialist social workers are often eligible.

“You don’t need every credential under the sun to make a difference,” Sarah explains. “What you do need is supervision, compassion, and a commitment to best practice.”

Skills of a Good Assessor

The best assessors bring more than technical expertise:

• Empathy and rapport-building – creating safety for often traumatised clients.
  
  

• Evidence-based intuition – balancing instincts with data.
  
  

• Collaboration – working within multi-disciplinary teams.
  
  

• Cultural awareness – recognising how systems affect people differently.
  
  

Challenges to Expect

The role is rewarding, but not without difficulty:

• Emotional intensity – assessments can be draining, especially when hearing difficult personal histories.
  
  

• Risk of burnout – multiple assessments per day can lead to fatigue.
  
  

• Ethical dilemmas – not every clinic or provider shares the same values.
  
  

“It’s heavy work at times,” Sarah admits, “but it’s also some of the most meaningful. You help people see themselves with fresh clarity.”

Income & Opportunities

Earnings typically range from £150 to £450 per assessment, depending on the tool and setting. ADHD assessments, in particular, are in high demand.