Ofsted inspectors are now accredited, and an outside body is checking the paperwork
What happened
On 28 September 2026, Ofsted published a blog post announcing that it has begun accrediting its inspectors. The post was written by Matthew Purves, National Director of the Ofsted Academy, the part of Ofsted responsible for inspector training and development. Accreditation is a formal way of recognising and checking an inspector's professional expertise. Ofsted describes it as a clear, robust and externally validated approach that recognises professional expertise, supports continuous development, and builds public confidence in inspection standards. The framework covers induction, training, professional development, reflective practice and quality assurance. In other words, it is not a single exam. It is a record that an inspector has been trained, kept up to date, reflected on their practice, and had their work checked. The rollout began in September 2026, starting with Ofsted's own employed inspectors: His Majesty's Inspectors and Regulatory Inspectors. Ofsted says all eligible employed inspectors have already achieved accreditation. The external element is the part that makes this more than an internal scheme. The British Standards Institution provides independent certification of the framework, with ongoing verification and regular checking of accreditation decisions. Ofsted says accreditation will be extended to contracted inspectors, so that everyone who inspects on its behalf meets the same standard. The commitment to introduce accreditation was made by His Majesty's Chief Inspector, Sir Martyn Oliver, in April 2025.
Why this matters
Inspection is one of the highest-stakes judgements made about a school. It affects a school's reputation, its recruitment, whether families apply, and in some cases whether the leadership team keeps its jobs. The recurring complaint from the profession has not usually been that inspection exists. It has been about consistency: that the outcome can depend too much on which inspector walks through the door. Accreditation is an attempt to answer that complaint with a system rather than a reassurance. If every inspector has passed through the same framework of training, development and quality checks, the argument goes, the variation between them should narrow. The involvement of the British Standards Institution matters more than it might appear. Ofsted checking its own inspectors is a closed loop. An external certification body checking that Ofsted's framework does what it says, and sampling the accreditation decisions, is a different proposition. It is the same logic Ofsted applies to schools: someone from outside should look. It also lands at a sensitive moment. Ofsted has been through a period of sustained criticism and significant change to how inspection works. Something that is visible, checkable and externally verified is a reasonable place to start rebuilding trust.
What the evidence actually says
It is worth being clear about what has and has not happened. What has happened: a framework exists, it is externally certified by the British Standards Institution, and all eligible employed inspectors have been accredited. That is a real, completed step, not an aspiration. What has not yet happened: contracted inspectors are not yet covered. This matters, because a significant amount of inspection work is carried out by inspectors contracted by Ofsted rather than employed by it. Ofsted has stated its intention to extend accreditation to them, and says the goal is that all who inspect for Ofsted meet the same standards. Until that happens, the framework covers part of the workforce. The timeline is also worth noting for what it says about pace. The commitment was made in April 2025. The rollout began in September 2026. That is not slow by the standards of professional accreditation schemes, but it is not quick either. Finally, a note of proportion. Accreditation confirms that inspectors have been trained, developed and quality assured to a certified standard. It does not, by itself, change the inspection framework, the judgements inspectors make, or how those judgements are reported. Those are separate questions, and schools that are unhappy about the framework will not find their concerns answered here. What it does offer is a documented answer to a specific question: is the person inspecting my school qualified to do it, and who says so?
Practical advice
If you are a school or college leader: - This does not change how you prepare for inspection. The framework and the evidence you gather are unaffected. - It does give you a new, reasonable question to ask at the start of an inspection: is the lead inspector accredited under the new framework? There is nothing rude about asking. - If you have concerns about how an inspection was conducted, Ofsted's complaints process remains the route. Accreditation adds a layer of quality assurance behind it, not a replacement for it. - Keep an eye on when accreditation reaches contracted inspectors, since many inspections are led by them. If you are a teacher or a parent: - Inspection reports are published and free to read. If you are choosing a school, read the report itself rather than the grade alone. The text is usually more informative than the headline. - If you want to understand how inspection works, Ofsted publishes its inspection handbooks openly. They are long, but they are written in plain English and they tell you exactly what inspectors are looking for. If you are considering becoming an inspector, the accreditation framework is now the route in, and the Ofsted Academy is the part of the organisation that runs it.
What to know
Ofsted announced on 28 September 2026 that it has begun accrediting its inspectors. The framework covers induction, training, professional development, reflective practice and quality assurance, and is independently certified by the British Standards Institution, which also carries out ongoing verification and regular checks of accreditation decisions. The rollout started in September 2026 with Ofsted's employed inspectors, His Majesty's Inspectors and Regulatory Inspectors, and all eligible employed inspectors have now been accredited. It will be extended to contracted inspectors so that everyone inspecting for Ofsted meets the same standard. The commitment was made by His Majesty's Chief Inspector, Sir Martyn Oliver, in April 2025, and the scheme is run through the Ofsted Academy. Accreditation addresses consistency and confidence in who inspects. It does not change the inspection framework itself. Sources: Matthew Purves, National Director of the Ofsted Academy, "Introducing inspector accreditation", Ofsted education inspection blog, 28 September 2026, https://educationinspection.blog.gov.uk/2026/09/28/introducing-inspector-accreditation/. Ofsted, GOV.UK organisation page and published inspection handbooks, https://www.gov.uk/government/organisations/ofsted. This article is for general information. It is not legal or professional advice, and it does not replace advice from a qualified professional. Schools with concerns about an inspection should follow Ofsted's published complaints procedure.
Related articles
Mondays, Wednesdays and Fridays: the hub that opened at a football ground
On 12 October 2026, the Department for Work and Pensions announced that a new Youth Hub had opened in Exeter. The hub is for people aged 16 to 24. It is at St…
A 'veneer of progress'? The youth justice chief answers her critics
On 12 October 2026, the chief executive of the Youth Justice Board for England and Wales published an article defending the approach that now shapes how the sys…
Three years of missing accounts, and two trustees on the register
On 12 October 2026, the Charity Commission announced that it has opened a statutory inquiry into an education charity called Crossfields Institute. The charity…