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·3 min read

Accountancy Firms and AI: Where the Real Efficiency Gains Are

G

Ger Perdisatt

Founder, Acuity AI Advisory

AI promises significant efficiency gains for accountancy practices. Some of those promises are real. Others are not. Knowing the difference before investing is what distinguishes a useful pilot from an expensive distraction.

Accountancy is one of the sectors where AI enthusiasm has outrun practical deployment. The promises are large — automated audit procedures, AI-generated tax computations, client advisory chatbots — and the demonstrations are impressive. The reality of deploying these tools in a live practice, with real client data, professional liability, and regulatory obligations, is more demanding than any vendor demonstration shows.

That does not mean the gains are not real. They are. But they are concentrated in specific tasks, and chasing them in the wrong places wastes money and goodwill.

Where AI genuinely saves time

The most reliable efficiency gains in accountancy are in high-volume, structured-data tasks where AI performs a first pass that a human then reviews and validates.

Document processing and data extraction — pulling figures from client-provided financial statements, invoices, and bank records — is an area where AI reduces manual data entry time materially. The technology for this is mature. The governance requirement is a robust review process, because the cost of an undetected extraction error in an audit or tax return can significantly outweigh the time saved.

Client communications have become an underappreciated time sink in most practices. Drafting responses to routine client queries, preparing engagement summaries, and producing initial drafts of management letters are all tasks where AI assistance can reduce drafting time by a meaningful amount. The output requires review and professional judgement before it goes to the client, but the blank-page problem disappears.

Regulatory reporting and compliance summaries — particularly for clients with recurring obligations — is another area of genuine gain. AI can process source data, apply known rules, and produce a structured draft that a professional reviews and signs off. The professional is not eliminated from the process; they are repositioned within it.

What to avoid

Audit procedures requiring genuine professional scepticism are not a near-term AI efficiency play. Tools that automate the appearance of scrutiny without delivering the substance of it create liability exposure, not efficiency. The auditor's obligation is not to produce documentation — it is to form an opinion. AI can assist the evidence-gathering; it cannot replace the judgement.

Complex tax advisory — where the value to the client is the professional's judgement about the right structure, not the correct application of known rules — is similarly not well-served by AI efficiency framing. These are the areas where clients pay the most and where the professional's ability to defend their advice matters most.

The CAI context

Chartered Accountants Ireland has been engaged with AI governance for members, including guidance on AI use in practice and professional development resources. The CAI's position is consistent with the broader professional body stance: AI is a tool that can assist members, but it does not alter professional obligations around competence, independence, and client care. Firms should be familiar with CAI guidance as it develops, particularly as it intersects with the EU AI Act's requirements for high-risk applications.

Practical first steps

Start with a workflow audit, not a tool purchase. Map the tasks in your practice that consume the most time relative to their revenue contribution. Identify which of those tasks involve the characteristics where AI performs well: high volume, structured data, defined rules, clear validation criteria. That is the starting inventory for a useful AI deployment.

Pilot on internal tasks before client-facing ones. A tool that saves time on internal report preparation but occasionally misreads a figure is a training problem. The same error in a client audit file is a professional liability problem.

Build review into the process from the start, not as an afterthought. The AI is doing the first draft; the professional is doing the quality assurance. Design the workflow so that distinction is clear and the review step is genuinely substantive.

We work with professional services firms on AI strategy and governance. If you want to think through where AI fits in your practice, get in touch.

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