If you already hold a dyslexia report, the honest answer is often no. Dyslexia does not go away, and an existing report is frequently still useful. Before paying for anything, it is worth establishing what the report is for, what that organisation currently requires, and what your report already contains.
Almost every disagreement about an 'out of date' report comes from mixing up these two ideas.
Dyslexia is a lifelong profile
The way you process written language does not reset. Strategies improve, attainment improves, confidence improves, the underlying profile remains. A diagnosis made properly does not become untrue.
Organisations set their own requirements
A university, funding body, exam centre, professional body or employer may have its own current rules about the evidence it will work from, including who wrote it, what it contains and, for some, how recent it is. That is a documentation requirement, not an expiry date.
The short answer
How long is a dyslexia assessment valid for?
This is the question most people arrive with, so here is the plain version before the detail.
A full diagnostic dyslexia assessment does not normally expire. There is no national expiry date, no renewal period and no point at which a diagnosis is automatically cancelled. The diagnosis remains part of your history, and a report you already hold stays a genuine record of what was found.
What can change is the evidence a particular organisation wants to see. A school, college, university, funding body, awarding body or employer may ask for current evidence of the difficulties you experience now, or for information written after a certain age. Each sets its own requirements, and those requirements differ from one to the next.
So a new assessment is not automatically necessary. Before paying for one, check what the organisation receiving the evidence actually asks for, ideally in writing. In many cases an existing report, sometimes alongside up-to-date information from school or work, is enough.
Decision journey
I already have a dyslexia report. What now?
Work through these in order. Most people find their answer before reaching the end.
01
What do you need it for?
School or college exams, university or DSA, a professional examination, an apprenticeship, work, the driving theory test, or something else. Each has a different decision-maker.
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02
What does that organisation currently require?
Ask them directly, in writing where you can. Ask what the evidence must contain and who it must be written by. Do not rely on hearsay, forum posts, or a private assessor's website, including this one.
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03
What does your existing report contain?
Check the date and your age at the time, the assessments used, standardised scores, the diagnostic conclusion, and the recommendations. Most reports contain more than people remember.
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04
Has the organisation said your evidence is unsuitable?
There is a real difference between 'we have not looked at it yet' and 'we have looked and it does not meet our requirements'. Only the second is a reason to consider paying again.
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05
Is further assessment actually necessary?
Sometimes yes: no assessment has ever been done, the evidence has been formally declined, or you need a current diagnostic conclusion in your own right. Often, no.
Your existing evidence looks suitable
Submit it and see what they say. You may not need another assessment at all. Keep a copy, and keep any written confirmation of what was accepted. It makes the next request easier.
It is not suitable, or you are not sure
Find out what additional evidence is actually required, in writing, before arranging anything. Then you are buying something specific rather than hoping. If you are still unsure, ask Mark. There is no charge for the conversation.
This is guidance and signposting only. It is not a professional or legal decision about eligibility. That always rests with the organisation asking for the evidence.
When another assessment is genuinely appropriate
Reasons that hold up
We would rather be straight about this than pretend nobody ever needs a second assessment.
You have never had a full diagnostic assessment, only a screener, an indicator check or an informal school view.
An organisation has told you in writing that the evidence you hold does not meet its current requirements.
Your existing report has no standardised scores or no clear diagnostic conclusion.
You were assessed as a young child and now need evidence describing your profile as an adult or post-16 student.
Your report has been lost and cannot be obtained from the assessor, school or local authority.
You want to understand your own profile properly, for yourself, rather than for any organisation.
Check the current rules yourself
Where the decision actually sits
Requirements change. These are the current authoritative sources for the most common situations.
What DSA is, who can apply, and the evidence a funding body may ask for. Eligibility and the evidence accepted are decided by the funding body, not by an assessor.
Decision made by: Student Finance England (or the equivalent funding body)
A grant scheme that can help pay for practical support at work, such as equipment, software or support workers. Applications are assessed individually.
An overview of the duty on employers to make reasonable adjustments for disabled workers. What is reasonable depends on the situation.
Decision made by: The employer, considering the individual circumstances
Common questions
Old reports, expiry and re-assessment
Does a dyslexia assessment expire?
Not in the sense people usually mean. Dyslexia is a lifelong difference in how written language is processed; it does not stop being true because a report is ten years old.
What can change is whether a particular organisation regards a particular document as suitable evidence for its own current purposes. That is a documentation requirement, not an expiry date, and it varies from organisation to organisation.
How long does a dyslexia report last?
There is no single national rule. Some organisations accept a report of any age. Others ask for evidence produced after a certain age, a post-16 assessment is the most commonly mentioned. The only reliable answer comes from the organisation you are giving the report to.
Is a dyslexia report valid for life?
The diagnosis is. Dyslexia is a lifelong profile, and once it has been identified through a full diagnostic assessment it becomes part of your history. A report written when you were nine does not become untrue when you turn nineteen.
What no report can do is guarantee that every organisation will work from it indefinitely. Some ask for a more recent description of how you are managing now. That is a request for current evidence of need, not a sign that the original diagnosis has lapsed.
Will my old dyslexia report still be accepted?
Often, yes, and it costs nothing to ask. Send the report to the school, college, university, exam centre, awarding body or employer concerned and ask whether it meets their current requirements. If it does not, ask what would. Only then are you in a position to decide whether further assessment is worth paying for. If you would like a second pair of eyes first, Mark is happy to look over what you already hold and say whether another assessment looks necessary.
Do I need a new dyslexia assessment for university?
Not necessarily. Many students use an existing diagnostic report. Universities and funding bodies set their own current evidence requirements, and a post-16 diagnostic assessment is sometimes asked for. Contact the disability or student support team, and check the official DSA guidance, before arranging anything.
Do I need a new dyslexia assessment for work?
Usually not. Employers consider reasonable adjustments based on the difficulty you actually experience, and Access to Work has its own application process. A diagnostic report can support a conversation, but there is no general legal requirement to hold one in order to ask for support.
My child was assessed at primary school. Is that still valid for secondary?
The findings do not stop being true, though schools sometimes want up-to-date information about current attainment and about how a young person works now. Share the report with the SENCo and ask what, if anything, else they need. That conversation is free.
Is a screening result the same as a diagnostic assessment?
No. A screener or indicator check flags the likelihood of difficulty; a full diagnostic assessment involves standardised testing across several areas and reaches a diagnostic conclusion with a written report. Some organisations accept screening evidence for some purposes; others do not.
Should I just pay for a new assessment to be safe?
We would rather you did not. Find out in writing what is required first. If it turns out a current diagnostic assessment is genuinely needed, we are here, but £495 is a lot of money to spend on a guess.
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