Accounting Firms and AI: Compliance with the EU AI Act and Professional Secrecy

Accountancy practices across the EU increasingly use AI for transaction categorisation, anomaly detection, audit support, and client advisory. Most uses are limited or minimal risk under the AI Act. But professional secrecy imposes its own demands — and those apply today.

Risk classification for accounting AI

• Transaction categorisation — minimal risk.
• Anomaly detection in audit — minimal/limited risk.
• AI summarisation and drafting — minimal risk for internal use.
• Client risk scoring affecting credit recommendations — potentially high-risk under Annex III Point 5(b) (deadline 2 December 2027).
• AML/CTF screening AI — interacts with separate AMLD obligations applicable today.

Professional secrecy is the bigger constraint

Submitting client data to AI tools without appropriate safeguards may breach professional rules even if it complies with GDPR. The practical rule: enterprise-tier AI tools only, with signed DPAs, with training-on-content disabled, with anonymisation where possible.

Engagement letter clauses

'Use of AI in our service to you: As part of our work, we may use AI tools (for transaction categorisation, document analysis, drafting). Your data is processed under appropriate confidentiality and data protection terms. A qualified professional reviews all AI output before any analysis or report is finalised.'

Done-for-you compliance for accountancy practices

The Ready AI Act Premium Compliance Programme (€899) includes the Accounting sector add-on: multi-client AI exposure framework, vendor due-diligence pack for Botkeeper / Vic.ai / MindBridge / Trullion / Dext / Xero AI / QuickBooks AI / Sage Copilot, audit trail documentation, AML AI guidance, professional indemnity briefing, national accounting body crosswalk (IBR/ITAA, NBA, DStV, CSOEC, Consiglio Nazionale), and client engagement letter library. Delivered within 5 business days, reviewed by qualified ICT/privacy counsel.