AI chat for tax advisors
You want to use Claude for client data, tax law and DATEV preparation — but professional confidentiality under §57 StBerG rules out US cloud. ClapNClaw gives your tax firm Claude in its own isolated environment on servers in Germany. CLOUD Act: residual risk disclosed.
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Use cases
The same AI as in ChatGPT — but in your own isolated environment. Client data and balance sheets stay on servers in Germany.
Analyze these accounting records for typical tax-audit risks and create a prioritized checklist for the client meeting.
Draft a commentary on the 2025 annual financial statements for our client based on this P&L and balance sheet. Focus: material changes from the prior year.
Review this income tax return for possible optimization opportunities and missing receipts. Please follow the current EStG (German Income Tax Act).
Explain to my client in plain terms why entertainment expenses are only 70% deductible and which receipts they need.
Skills for your tax firm
Pre-configured skills that tune Claude to your tax work right away — with no prompt engineering.
DATEV and the beta
Claude extracts, classifies and proposes the booking entry. You review and confirm. The DATEV export as an EXTF file is part of the beta on every plan — without a DATEV contract and without connecting to DATEV; any member triggers it in the chat and exports only the documents they have access to. The direct connection (OAuth) is planned for Q1 2027 and cannot be used yet; DATEV grants the release for production.
01
PDF, image or email attachment via drag & drop — or straight from the chat.
02
Amount, VAT rate, supplier and date — no template, no manual mapping. From text-layer PDFs or a photo of the receipt (PNG/JPG).
03
The AI prepares the account and contra account as a draft. You review and correct — the tax advisor decides the posting.
04
You export the reviewed booking entry as an EXTF file for your firm or transfer it to your accounting system. The direct connection is planned for Q1 2027.
The DATEV export in practice
An example with fictional data: Claude reads the incoming invoice, prepares the posting line and creates an EXTF file from it. Preview with a sample receipt; the DATEV export as an EXTF file is part of the beta.
1 · Receipt
Incoming invoice MR-2026-0412 · 04 Nov 2026
2 · Chat
| Amount | D/C | Account | Contra account | Tax key | Doc. date | Doc. field 1 |
|---|---|---|---|---|---|---|
| 999.60 | D | 4930 | 1600 | 9 | 04 Nov | MR-2026-0412 |
The firm imports the EXTF file into DATEV Kanzlei-Rechnungswesen. An example of the file route, no DATEV contract; accounts are a proposal you review. What is enabled in the chat today is on the DATEV export page.
All inside the private chat, no DATEV contract and no sign-in with DATEV:
Everything is a working draft: the tax advisor makes the decision.
The chat will then talk directly to your DATEV account. Planned flow:
Planned example · not available today
You: Show me the postings of client 10001 for October.
Claude: I am retrieving them through your DATEV account. Shall I send the reviewed posting batch straight to DATEV?
You: Yes, send.
DATEV grants the production release; the date is a plan, not a commitment.
The DATEV export as an EXTF file is part of the beta (status: DATEV export page). The § 203 StGB supplementary agreement belongs to the Compliance plan (and Dedicated), not to Team.
You enable data retrieval through the future direct connection per client: €99 per client and year (net, per client record), included free until 31 Dec 2026, charged from 1 Jan 2027 — the price is shown before you confirm. For larger client portfolios (roughly from 16–20 clients): your own DATEV contract, set up by us, price on request.
Example chat
Data protection & professional law
Client data runs in your isolated environment on servers in Germany. AI inference runs on AWS Bedrock in Frankfurt (eu-central-1); a residual US CLOUD Act risk is disclosed transparently. The §203 StGB supplementary agreement is included in the Compliance plan from day one.
Hetzner, servers in Germany. Anthropic stores no data. Data in Germany, inference in the EU. AI inference runs on AWS Bedrock in Frankfurt (eu-central-1); a residual US CLOUD Act risk is disclosed transparently.
Data processing agreement included. Setup in 3 minutes, no IT effort. Ready to use immediately.
Your client data is never used for AI training. Balance sheets and tax returns belong to you.
Frequently asked questions
Not without more: tax advisors are bound by professional confidentiality (§203 StGB). Client data sent to ChatGPT or Claude.ai (web) ends up on US servers without a suitable agreement in place. ClapNClaw runs Claude in your own container on servers in Germany — with an AVV under Art. 28 GDPR; the §203 StGB supplementary agreement is included in the Compliance plan from day one.
The DATEV export as an EXTF file is part of the beta on every plan — without a DATEV contract and without connecting to DATEV; any member triggers it in the chat and exports only the documents they have access to. The direct connection (OAuth) is planned for Q1 2027 and cannot be used yet; DATEV grants the release for production. Receipts are extracted, classified and proposed as a booking entry; you review it. ClapNClaw stores your data on servers in Germany; AI inference runs in the EU.
Team: €29 per user per month (€25 with annual billing) including receipt extraction; AVV under Art. 28 GDPR from day one. Compliance plan (€59/month, €50 with annual billing) bookable online, no trial, incl. the § 203 StGB supplementary agreement. For larger firms wanting a fully dedicated server: the Dedicated plan starts at €149 per user per month (€125 with annual billing), every additional user €99/month (€84 annually). Team: 7 days free, no credit card. Compliance and Dedicated are bookable online, no trial, incl. the § 203 StGB supplementary agreement.
Within the EU: client data at Hetzner in Germany, AI inference runs on AWS Bedrock in Frankfurt (eu-central-1); a residual US CLOUD Act risk is disclosed transparently. Anthropic stores no data via Bedrock.
Yes. ClapNClaw is a GDPR-compliant ChatGPT alternative for tax advisors: AI for bookkeeping with receipt recognition and receipt extraction. The DATEV export as an EXTF file is part of the beta; the direct connection is planned for Q1 2027.
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