Cost of IR35 Advice
across the UK

# IR35 Advice Trade Body Accreditation

The main UK bodies offering accreditation relevant to IR35 advice include the Chartered Institute of Taxation (CIT), the Association of Taxation Technicians (ATT), and the Institute of Chartered Accountants in England and Wales (ICAEW). These bodies maintain professional standards, require continuing professional development, and enforce codes of conduct. There are also scheme-specific accreditations such as membership of the Association of Independent Tax Advisers (AITA) or recognition through the Tax Advice Network. While the Financial Conduct Authority (FCA) does not directly regulate tax advice, practitioners offering broader financial guidance may hold FCA registration. Understanding these bodies is important because each requires different levels of qualification and has distinct disciplinary procedures, meaning accreditation signals both expertise and accountability.

To verify a provider's credentials, you should check their membership directly on the relevant trade body's public register, which all major UK professional bodies maintain online. A legitimate practitioner will usually display their membership number, the body they belong to, and often display this on their website and marketing materials. It is also worth asking providers directly about their accreditation, their specific qualifications (such as whether they hold the CTA or ATT qualifications), and whether they carry professional indemnity insurance, which most accredited bodies require. This verification matters because it protects you from unqualified advisers giving incorrect IR35 guidance, which can have serious tax consequences, and it gives you a clear complaint route through the professional body if things go wrong.

Accredited providers typically charge 15 to 30 percent more than unaccredited advisers, and sometimes considerably more depending on their seniority and specialism. This premium reflects several factors: ongoing professional regulation and auditing, mandatory continuing education, professional indemnity insurance costs, and the time spent meeting compliance