VATValidation¶

Validate VAT numbers using the interfaces of BZSt, VIES, HMRC, and Swiss UID. Provides single or batch validation with support for CSV, XLSX and JSON.

Binaries for Windows and Linux are available (see releases).

Choose Your Workflow¶

VATValidation can be used in three ways, depending on your workflow.

Desktop App¶

Best for interactive checks and office use.

• Guide: Graphical User Interface

Automation and Scripts¶

Best for automation, scripting, and CI/CD.

• Guide: Command Line

Developer Integration¶

Best for integrating validation into your own applications.

• Guide: REST API

Quick Start¶

GUI¶

Download and run the latest GUI binary from releases.

CLI¶

vatvalidation_cli.exe --input input.csv --output results.csv

On Linux:

./vatvalidation_cli --input input.csv --output results.csv

API¶

./VATValidation-api-linux-<version> --port 8080 --proxy-mode system

Features¶

• 🖥️ Graphical user interface
• 🛠️ CLI processing for single and batch validation
• 🌐 REST API
• ✅ Single VAT number validation
• 📦 Batch processing of CSV, JSON, or XLSX
• 🇩🇪 Validation using BZSt (German Federal Central Tax Office)
• 🇪🇺 Validation using VIES
• 🇬🇧 Validation using HMRC (including VAT IDs beginning with UK)
• 🇨🇭 Validation using Swiss UID (check Swiss VAT numbers)
• 🔒 No manual Python dependency installation required for release binaries

Since 2026 the old BZSt interface has been shutdown. The new BZSt API is now supported.

This is the successor of my VAT-Validation. Now released as Open Source.

If you like this software, please don't hesitate to give it a or send me a donation in the amount you think the software is worth.