Seven Accountancy Bodies Launch Joint AI Guidance for Tax Work
Leading UK accountancy professional bodies, including the Association of Accounting Technicians (AAT), the Institute of Chartered Accountants in England and Wales (ICAEW), the Association of Chartered Certified Accountants (ACCA), and the Chartered Institute of Management Accountants (CIMA), have jointly published fresh guidance on using AI in tax work. This coordinated release reflects the urgency of the moment: tax professionals are adopting AI tools rapidly, but without consistent frameworks for managing risk and maintaining standards.
The guidance addresses core concerns: compliance with professional codes of ethics, managing AI-related errors and bias in tax advice, data security when using third-party AI platforms, and transparency with clients about AI involvement in their returns. Each body maintains its own standards, but the joint guidance signals a unified message: AI is a tool that enhances efficiency, not a substitute for professional judgment.
For payroll and tax advisers, the takeaway is clear. You will need to review your AI workflows now. Document which tools you use, validate their outputs against HMRC guidance, and ensure your client engagement letters spell out where and how AI is involved. AAT members taking on tax advisory roles, and larger firms using AI agents for tax code assignment and reconciliation, should pay particular attention to the guidance on audit trails and client communication. The bodies have also flagged that practitioners remain liable for AI-generated advice, so due diligence on tool accuracy and limitation is non-negotiable.
Read the full guidance on the ICAEW website.