# How HSP GRUPPE builds AI capabilities for tax advisory

HSP GRUPPE deployed ChatGPT Enterprise across its tax advisory network, logging 500,000+ conversations and 84% weekly active usage in six months.

- 98.6% of surveyed employees reported higher productivity and 84.6% reported improved work quality.
- HSP estimates 40,000+ annual hours of additional capacity, with theoretical revenue potential of about €3.8 million.
- Partner Magdalene Posnak cut real estate investment evaluation time from nine hours to about two.
- HSP is piloting ChatGPT Work with a small group of developers and administrators before broader rollout.

## Why it matters

Tax professionals at HSP GRUPPE now have AI embedded in daily workflows, freeing time for client advisory and reducing repetitive preparation work.

## Sources

- [OpenAI: How HSP GRUPPE builds AI capabilities for tax advisory](https://openai.com/index/hsp-gruppe)

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Summarized by dstilled on 2026-08-07. https://dstilled.ai/story/111a64b4-64af-472f-9672-ce76a15100c5