KPMG Wrote 100-Page Prompt To Build Agentic TaxBot

Professional services firms are engineering AI agents through massive prompt documents to automate complex knowledge work. KPMG Australia developed a 100-page prompt that transforms tax legislation and partner expertise into an agent producing comprehensive tax advice within 24 hours rather than the traditional two-week timeline.

The TaxBot searches distributed internal documents and Australian tax code to generate 25-page draft reports after collecting four to five inputs from tax agents. Chief Digital Officer John Munnelly said the system operates on KPMG Workbench, a global platform combining retrieval-augmented generation with models from OpenAI, Microsoft, Google, Anthropic, and Meta.

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