The accounting profession is one where generative AI has the strongest productivity gain potential — and where confidentiality is most critical. Balance sheet analysis, fiscal memo writing, client question responses, regulatory monitoring: almost all intellectual tasks can be accelerated. But no client data can be sent to a public LLM without GDPR/professional secrecy risk. This guide presents secure workflows and high-ROI use cases in a firm or corporate accounting department.

Assistant conversationnel d’Anthropic axé sécurité et contexte long. Excellent pour rédaction, analyse, résumés, code et agents. Interface claire, bons résultats en français.

Assistant conversationnel polyvalent d’OpenAI. Rédige, résume, code, traduit et répond à tout type de question.

Claude Opus 4.5 : modèle premium d’Anthropic pour code, agents et tâches complexes en entreprise.

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Assistant Google IA basé sur vos documents. Résume, synthétise et relie vos sources importées (PDF, Docs, notes).
Can a CPA use ChatGPT without violating professional secrecy?
With ChatGPT Team/Enterprise or Claude for Work: yes, contractually your data doesn't serve training. With free/Plus versions: no, it's a GDPR and professional secrecy risk. For the most sensitive data, on-premise solutions or dedicated profession tools (Sage, Cegid with integrated AI) should be prioritized.
Can AI make a balance sheet instead of the accountant?
For automated data capture (invoice OCR, reconciliations): yes, already standard. For the balance sheet itself (review, justifications, option choices): no, accounting responsibility remains human. AI accelerates analysis and memo writing, not the decision-making.
Which LLM for French tax questions?
Claude Opus 4.5 and GPT-5 have solid coverage of French tax law but can hallucinate on article references or case law. Always verify in BOFIP, Legifrance or official doctrine. Perplexity is useful for searches with fresh sources.
How much time does a firm save with AI?
On repetitive tasks (data capture, reconciliation, first-level review): 50-70%. On advice and complex assignments: 20-30%. Overall, a well-equipped firm can handle 30-50% more files at constant staffing — or reinvest freed time into higher-value advice.
Does AI detect anomalies in accounting?
Yes, it's one of its best use cases: unusual ratios, inconsistent entries, probable omissions. But it's a pre-detection tool — every alert requires human verification. For thorough controls, dedicated solutions (MyDSO, Akeance) are more reliable than a generalist LLM.