How much is a private ADHD assessment in the UK? An honest 2026 cost breakdown by a consultant psychiatrist

Consultant psychiatrist conducting a private ADHD assessment at Flint Healthcare in Brighton

If you’ve just started looking into a private ADHD assessment, the price spread you’re seeing — anywhere from £399 to over £1,500 — is genuinely confusing, and there’s a reason for it. The fee covers different things depending on the clinic, the clinician’s seniority, and whether ongoing care is included. As a consultant psychiatrist and co-founder of Flint Healthcare, I want to give you a straight answer to “how much does this actually cost,” and the questions you should ask before you pay anyone.
This is an honest 2026 breakdown. No upsell, no scare tactics, and clear flags for when private isn’t the right route.