Three weeks after a diagnosis, most dyslexic employees send the same email to HR: "I've been diagnosed with dyslexia and would like to discuss reasonable adjustments." Some get a meeting within the week. Others get a response that says the matter will be looked into, and then very little happens.
There are two routes for getting adjustments in place. Both are legitimate. The question is which one gives you more traction in your specific situation.
What a workplace needs assessment is
A workplace needs assessment (WNA) is a structured session with an occupational psychologist or assistive technology specialist. They look at your actual job tasks and ask what's hard and why. The session takes up to 1 hour 45 minutes. After it, they produce a formal written report with specific recommendations tailored to your role.
The British Dyslexia Association charges £540 (inc. VAT) for a WNA as of June 2026. Scheduling takes 3 to 5 weeks from booking. The session is remote, via video call. A 15-minute conversation with your line manager comes first, followed by the main employee session (British Dyslexia Association, June 2026).
The report is specific to your job. It names particular tasks you struggle with, connects them to how dyslexia affects your processing, and lists adjustments the employer should make. It may recommend assistive technology, changes to workflow, additional time allowances, or coaching. That report goes to HR and becomes the formal basis for the adjustments conversation.
Two practical details worth knowing upfront. You don't need a formal dyslexia diagnosis to access a WNA. You do need to have been in your current role for at least 6 weeks (BDA requirement). If you're newer than that, the direct adjustments route is your only option right now.
A WNA report is a document from an independent specialist that HR has to engage with formally. That's a different conversation than one kicked off by your own email.
Requesting adjustments without an assessment
You don't need a WNA before asking for adjustments. The Equality Act 2010 (sections 20 to 21) requires your employer to make reasonable adjustments once they know about your disability. Your diagnosis letter, shared with HR in writing, is enough to trigger that duty.
A direct request works well for adjustments that are simple and low-cost: receiving meeting agendas 24 hours in advance, getting written follow-up after verbal instructions, extra time for written tasks, or being excused from timed note-taking. These are reasonable, well-understood adjustments that most employers will agree to without needing a formal report behind them.
The reasonable adjustments builder takes your specific job challenges and turns them into a conversation plan and a draft email, in about two minutes. You can use it to structure a direct request today.
The limitation of going direct without a report is that the request depends on your ability to articulate what you need. If your employer is uncertain, or if your needs are complex or expensive, the response can be vague, slow, or a polite refusal. Without an independent report, there's less pressure on HR to engage seriously.
Direct is faster. A formal report is stronger. Understanding which you need is the decision this article is about.
When the formal report changes the outcome
Some situations make a WNA clearly worth the 3 to 5 week wait.
A skeptical or slow employer. If HR has already responded vaguely to a verbal or informal request, an independent professional report changes the dynamic. They can't dismiss it as easily as a self-identified list. Recommendations from a credentialed assessor require a formal response.
Complex or expensive adjustments. Asking for assistive software, noise-cancelling headphones, or structural changes to how your team runs meetings is more defensible with a formal report. The report names the need and connects it to your diagnosis. Your employer's refusal then has to address those specific documented points, not just a general request.
A senior or visible role. At manager or director level, the instinct is often to manage things informally and avoid documentation. A WNA creates a clear written record. That record protects you if the situation ever changes.
An active performance issue. In the Borg-Neal v Lloyds Banking Group tribunal (2023), a dyslexic employee was awarded £470,000 after the employer failed to make adequate adjustments following notice of his disability. A WNA report creates explicit, dated, documented notice that no employer can later claim they weren't given. If you're in any kind of performance management process, get that paper trail in place now.
The WNA report also supports an Access to Work application for any assistive technology it recommends. You apply to AtW after you have the report, using the recommendations as the basis for your application. The Access to Work calculator can give you an estimate of what the grant might cover. The AtW annual cap is £69,260, frozen for 2026 to 2027 (GOV.UK, updated May 2026).
The higher the stakes or the more skeptical the employer, the more a formal report earns its cost and its time.
When to skip the assessment and go direct
There are situations where waiting 3 to 5 weeks is the wrong call.
Probation ends soon. You need adjustments in place before your probationary review. Request them in writing today. You can still book a WNA alongside, but don't wait for it before contacting HR.
You're in active performance management. Every day without documented adjustments is a day your employer can later say supports weren't in place. The date on your email to HR matters. Send it this week, not after a 5-week wait.
Your adjustments are simple and well understood. If you need meeting agendas in advance and written follow-ups, you don't need a specialist to document that. Ask for it today. Reserve the WNA for identifying what you don't yet know you need.
Your manager is already engaged. Some managers understand dyslexia and are actively trying to help. In that case, a formal external report may slow things down rather than speed them up. Use it later if the relationship breaks down or if you need formal documentation.
You've been in role less than 6 weeks. The BDA WNA requires a minimum of 6 weeks in post. The direct route has no such restriction. Go direct now, book the WNA when you qualify.
Urgency wins over thoroughness. If something needs to happen this week, ask this week.
The sequence that gives you the strongest position
Most people need both routes. What varies is the sequence.
Send your HR email this week. Use the reasonable adjustments builder to structure it. Be specific. Name the task and the adjustment: "I find processing verbal information in meetings difficult and would benefit from receiving the agenda and any supporting documents 24 hours in advance." Copy your line manager.
Then book a WNA the same week. At the BDA the 3 to 5 week timeline means you'll have the formal report within 6 to 8 weeks of booking. By that point, your employer has been on notice of your disability for 6 to 8 weeks with a formal paper trail. The WNA report then gives you the basis for a fuller, more detailed adjustments conversation.
Once you have the report, follow up with HR formally. Attach the report to an email. Ask for a meeting to discuss implementation of the recommendations. Keep a copy of everything.
For assistive technology recommended in the report, apply to Access to Work. The current average processing time for an AtW decision is 109 days (National Audit Office, February 2026). Starting the application as soon as you have the report is important: you don't want to be waiting for a software decision 3 months after your employer has agreed in principle. The Access to Work guide covers the application process step by step.
Ask for what you need today. Book the formal assessment in parallel. Use the report to underpin the AtW application and any follow-up conversation with HR.
What the assessment costs and who pays
The BDA charges £540 (inc. VAT) as of June 2026. Other Patoss-registered assessors are available across the UK, with fees that vary by provider. The Dyslexia Association charges £475, for example. Most independent specialists fall in the £450 to £700 range.
Some employers fund a WNA as part of their support process, particularly larger organisations with established occupational health procedures. Others expect the employee to fund it. There's no automatic legal requirement for an employer to pay for an independent private assessment (as distinct from their own internal process).
If you fund it yourself, the report then supports an AtW application for the recommended technology. So while you pay the £540 upfront, the assistive software it identifies may be partly or fully covered by AtW. For a dyslexic employee who hasn't yet applied to AtW, a WNA that generates £2,000 to £3,000 in approved technology more than pays for itself in practical terms.
If you're unsure whether your employer will fund it, ask HR directly before booking. Frame it as a request for the employer to commission the assessment as part of their reasonable adjustments process. Some will. Put the request in writing either way.
Average Access to Work processing time as of November 2025 (National Audit Office, February 2026). Book a WNA and start your AtW application in parallel, not sequentially.
Even if you pay the £540 yourself, a WNA that generates a successful AtW application for assistive technology covers its cost many times over.
If you're past 6 weeks in role and can wait 3 to 5 weeks: book a workplace needs assessment. The report will identify adjustments you haven't thought to ask for, carry formal weight with HR, and support an Access to Work application. Request immediate adjustments directly in writing this week while you wait for it.
If you're in probation, active performance management, or need something in place before next week: request adjustments from HR in writing today. Don't wait for a formal report. You can book a WNA in parallel once the immediate request is on record.
For most people reading this, both routes are worth taking. The sequence is what matters.