Tax advisory & audit
Faster to the tax objection. Client data never leaves the firm.
Professional secrecy under § 203 StGB protects client data under criminal law. Tax returns, balance sheets, salary information and tax audit documents are among a company’s most confidential business data. A breach threatens not only the licence to practise but can trigger ruinous liability claims.
The challenge
Why AI has hardly been permitted here so far.
Relevant regulations
- § 203 StGB
- § 57 StBerG
- Auditors’ Code (WPO)
- 01Professional secrecy is anchored in § 203 StGB and § 57 StBerG.
- 02Client data includes revenue, salaries, assets and tax IDs.
- 03Tax audit documents contain detailed business figures.
- 04The German Auditors’ Code and ISA standards require strict information security.
Anonix in practice
What the AI provider actually sees.
The example uses fictitious demonstration data. The placeholders show which information Anonix detects and replaces.
Instruction to the AIDraft a letter of objection to the tax office for this client.
2personal data items replaced
01 · Your original
Client Bäckerei Kraus GmbH, tax no. 013/123/45678. Objection to the 2025 VAT assessment. Vehicle: 60% business, 40% private use.
02 · Sent to the AI
Client [ORG_1], tax no. [TAX_ID_1]. Objection to the 2025 VAT assessment. Vehicle: 60% business, 40% private use.
03 · Your result
Objection · Tax no. 013/123/45678
On behalf of our client Bäckerei Kraus GmbH, we hereby object to the 2025 VAT assessment.
Grounds: with 60% business use, a proportional input tax deduction under § 15 UStG must be recognised. We request a suspension of enforcement.
Data types detected in this example
- ORG
- TAX_ID
Nothing changes for your staff.
Your software calls the AI as usual. Anonix sits in between, replaces the personal data and puts it back into the response. Integration consists of two changed lines: API address and API key. This works with OpenAI®, Claude® and Gemini® as well as with self-hosted models.
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In a short conversation we show you how Anonix fits your organisation: which providers, which data, which rules. No obligation.