Free & Open Source

Deutsches Finanz- & Buchhaltungs-Plugin für Claude Code — Kostenlos

Give Claude Code deep German accounting knowledge — HGB, SKR 03/04, USt, GoBD, eBilanz, and month-end close. Stop getting generic responses and start getting structured, regulation-aware output.

🏗️ Built on the architecture of Anthropic's official Finance & Accounting Plugin — fully localised for German regulations, accounting standards (HGB/SKR 03/04), and compliance requirements (GoBD). Designed for accuracy: the plugin cites only HGB standards, USt guidance, and GoBD requirements from its verified knowledge base — no fabricated references.

How It Works with Claude Code

  1. 1Install — upload the plugin zip in the Claude Desktop App, add via CLI command, or clone from GitHub
  2. 2Choose your workflow — Buchungssätze, USt-Voranmeldung, Jahresabschluss, and more
  3. 3Provide your data — paste, upload, or connect via built-in MCP integrations (Slack, BigQuery, Microsoft 365, Gmail, and Google Calendar included out of the box)
  4. 4Get structured output — HGB-compliant, GoBD-aware results ready for review

Get the Guide File

Enter your email to download finance-de-plugin.zip and get access to the GitHub repository.

No spam, ever. Your email is stored securely so we can send you updates about new use cases and workflows.

Step-by-Step: Set Up the Plugin

Option A: Install via Claude Desktop App (recommended)

1

Download the plugin zip below using the form above.

2

Open the Claude Desktop App. Click Customize in the bottom-left corner.

Claude Desktop App — click Customize
3

Under Personal plugins, click the + button, then select Upload plugin.

Claude Desktop App — Upload plugin option
4

Drag and drop the downloaded zip file into the upload area, or click Browse files. Then click Upload.

Claude Desktop App — drag and drop plugin zip
B

Option B: Plugin Marketplace (CLI)

In your terminal, run: claude plugins marketplace add mlobo2012/Germany-SMB-Finance-Accounting-Plugin — then: claude plugins install germany-accounting@Germany-SMB-Finance-Accounting-Plugin

C

Option C: Clone and point

Clone the GitHub repo and run: claude --plugin-dir ./Germany-SMB-Finance-Accounting-Plugin

4

Run your first accounting command

Try /buchungssatz, /jahresabschluss, or /ust-voranmeldung to see the plugin in action.

5

Connect your accounting tools (optional)

The plugin includes 5 Anthropic-hosted MCP servers (Slack, BigQuery, Microsoft 365, Gmail, and Google Calendar) that work out of the box. You can also connect DATEV, Lexware, or sevDesk for additional integrations.

6

Review outputs with your Steuerberater

All plugin output should be reviewed by a qualified professional before acting on it.

7

Explore all workflows

The plugin includes Buchungssätze, Abstimmung, USt-Voranmeldung, eBilanz, Lohnabrechnung, Compliance, and internal controls.

Why Manual German Accounting in Claude Is Painful

You paste financial data into Claude and get generic responses. It doesn't know HGB from IFRS, can't structure a proper USt-Voranmeldung, and has no idea about Finanzamt filing deadlines. This plugin gives Claude deep German accounting knowledge — so it works like a qualified Steuerberater assistant, not a general chatbot.

Without the Plugin

  • Generic responses — Claude doesn't know German accounting standards
  • No USt structure — can't prepare a proper ELSTER submission
  • Missing deadlines — no awareness of Finanzamt/Handelsregister filing dates
  • Manual formatting — you have to structure everything yourself

With the Plugin

  • HGB-aware — knows SKR 03/04 chart of accounts and GoBD requirements
  • ELSTER-ready — structured USt-Voranmeldung with Vorsteuerabzug handling
  • Deadline tracking — USt, Lohnsteuer, eBilanz with penalty schedules
  • Structured output — Buchungssätze, Jahresabschluss, and Abstimmungen in proper format

What It Handles

The plugin gives Claude Code specialist knowledge across six core German accounting domains — turning it from a generic assistant into a regulation-aware finance tool.

📒

Buchungssatz Automation

Abgrenzungen, Rückstellungen, Lohnbuchhaltung (Sozialversicherung, betriebliche Altersvorsorge), and Anlagevermögen with HGB treatment.

📊

Jahresabschluss

GuV (Gesamtkostenverfahren/Umsatzkostenverfahren), Bilanz, Kapitalflussrechnung, with period comparison and HGB formatting.

🏦

Kontenabstimmung

Hauptbuch-zu-Nebenbuch matching, DATEV integration, SEPA/Lastschrift reconciliation.

🧾

USt & ELSTER Compliance

USt-Voranmeldung preparation, Vorsteuerabzug, Innergemeinschaftliche Lieferungen, ELSTER filing.

🏛️

Handelsregister & eBilanz

eBilanz preparation, Handelsregister filings, Unternehmensgrößenklassen, and Offenlegungspflichten.

🔍

Internal Controls & GoBD

GoBD compliance testing, Verfahrensdokumentation, audit trail requirements, IDW PS alignment.

How the Plugin Works

The plugin extends Claude Code with structured German accounting workflows. Each command follows a consistent pattern: provide your data, get regulation-compliant output, review with a qualified professional.

1

Install the Plugin

One command in your terminal adds the full German accounting skill set to Claude Code. No configuration needed — it works immediately.

2

Choose Your Workflow

Use /buchungssatz, /abstimmung, /ust-voranmeldung, /jahresabschluss, or /ebilanz to select the accounting task.

3

Provide Your Financial Data

Paste figures directly, upload a spreadsheet, or connect via the built-in MCP integrations (Slack, BigQuery, Microsoft 365, Gmail, and Google Calendar included). DATEV, Lexware, and sevDesk are also supported.

4

Get Structured, HGB-Compliant Output

The plugin ensures all output follows German accounting standards — HGB, SKR 03/04, GoBD requirements. No generic responses.

5

Connect Your Tools (Optional)

5 Anthropic-hosted MCP servers (Slack, BigQuery, Microsoft 365, Gmail, and Google Calendar) work out of the box. You can also connect DATEV, Lexware, sevDesk, or ELSTER for additional data sources.

6

Review and Action

All outputs are designed for review by qualified professionals. The plugin accelerates your workflow — it doesn't replace professional judgement.

Best For — and Not For

Best For

  • German GmbH, GbR, Einzelunternehmen, and Freiberufler using Claude for bookkeeping
  • Steuerberater and Buchhalter who want Claude as a workflow accelerator
  • Businesses preparing USt-Voranmeldungen and eBilanz filings
  • Finance teams needing faster Monatsabschluss

Not the Right Fit

  • Replacement for qualified Steuerberater — this is an assistant, not an adviser
  • UK/US-only businesses with no German accounting needs
  • Enterprise-scale ERP workflows (use dedicated accounting software)
  • Automated filing without human review

Frequently Asked Questions

It's a free, open-source plugin that gives Claude Code deep knowledge of German accounting standards, regulations, and workflows. It covers Buchungssätze, Jahresabschluss, USt-Voranmeldung, eBilanz, Lohnabrechnung, and GoBD compliance — all built for HGB and Finanzamt requirements.

Download the quickstart file above and follow the step-by-step guide. Installation is a single command in your terminal. The plugin is immediately available after install — no additional configuration needed.

Download the Free Plugin

Get the quickstart guide and start using German-compliant accounting workflows in Claude Code today. Free, open source, and built for German businesses.

Need Help Setting This Up For Your Business?

We help German businesses get Claude working as a genuine finance workflow tool — not just a chatbot. Custom plugin configuration, MCP server connections, and workflow design.