Dyslexia Assessment Costs Explained: What You Pay For and Why

If you are looking into a dyslexia assessment, cost is often one of the first questions. It is a fair question, and you deserve a clear answer before you commit to anything. At Defining Dyslexia, a full diagnostic dyslexia assessment costs £495, which includes the assessment itself, the full written report and feedback afterwards. That is the complete standard assessment package, and any optional additions are explained and agreed with you in advance.

View dyslexia assessment prices

Our prices

We offer two main routes, depending on what you need.

The first is a dyslexia tendencies short report, priced at £250. This is a focused screener for children aged eight and over, and for adults. It looks at literacy and the cognitive profile, then gives clear recommendations. It also indicates whether dyslexia or another learning difficulty is likely. It is a helpful starting point, although it is not a formal diagnosis.

The second is a full diagnostic assessment report, priced at £495. This is a comprehensive assessment of literacy, cognitive processing, and the wider learning profile. Every report includes clear findings and practical recommendations. It also includes post-diagnostic support, along with a liaison report for schools where that is needed. This is the route most people choose when they want a formal outcome. The £495 diagnostic assessment is available for children and adults. The optional traits add-on is not offered to under-18s.

You can find out more about the full diagnostic assessment and what it involves for children, adults and university or college students.

What the price includes

We believe in honest pricing, so the figure you see is the figure you pay. The fee covers the assessment session itself, and the full written report afterwards. It also covers the recommendations that help you act on the findings. There are no separate charges for the report, which can surprise people who have shopped around elsewhere.

Where an external venue must be hired for a face-to-face assessment, an additional charge may apply. Any venue charge will be discussed and agreed with you in advance. An optional add-on to the £495 dyslexia diagnostic assessment is available only to adults aged 18 and over. Each additional area explored — ADHD or dyspraxia traits — costs £100. It explores traits; it is not a formal diagnosis of ADHD or dyspraxia. Please discuss the additional area you would like to explore with Mark before booking so the scope and total fee can be agreed in advance.

Where an external venue must be hired for a face-to-face assessment, an additional charge may apply.

How our pricing compares

Independent assessments in the UK typically range from around £400 to £600, depending on the assessor and what's included. The British Dyslexia Association currently lists specialist teacher assessments at £690 including VAT, and educational psychologist assessments at £882 including VAT. Other independent providers sit in a similar range too, with diagnostic assessments commonly priced between £450 and £550 depending on location. Our standard full diagnostic assessment is £495; any optional addition or venue charge is explained and agreed in advance. We keep our pricing keen because we want a quality assessment to be within reach for as many families as possible.

Once you know the cost, it helps to know the ways to pay. Some people spread the cost, while others get help from an employer or university. You can read more in our guide to ways to pay for a dyslexia assessment.

A free call before you decide

You do not need to commit straight away. We offer a free 15-minute telephone consultation, before any booking. This gives you the chance to ask questions, and to work out which option suits your situation. There is no pressure, and no obligation to go ahead.

If you are weighing up whether to go ahead, our guide to is a dyslexia assessment worth it talks it through.

Where we work

The standard £495 diagnostic assessment fee is the same for face-to-face and remote assessment. Face-to-face does not have to mean travelling to us: we can discuss your home, school, workplace or another suitable agreed setting. Where an external venue must be hired for a face-to-face assessment, an additional charge may apply. Any venue charge will be discussed and agreed with you in advance.

Defining Dyslexia works remotely right across the UK, which keeps assessments within reach wherever you live. For those who prefer to meet in person, we cover two main areas. In South Yorkshire, that includes Sheffield, Doncaster, Barnsley and Rotherham. In and around Cambridgeshire, Lincolnshire, Rutland that includes Peterborough, Stamford and Oakham.

Remote assessments are just as valid as in person ones, so the choice is simply about what feels right for you. If your town is not listed, please still get in touch, as we travel across both regions and assess right across the UK online.

A Final Word

Cost is often the first question people ask, and it's a fair one. What matters most is that you know exactly what you're paying for, and that nothing changes further down the line. Whether you choose the tendencies screener or the full diagnostic assessment, you're getting an honestly priced process from a qualified assessor, with support built in at every stage, not just a fee and a form.