WordPress VAT Plugin for EU VAT IDsSimple VAT ID validation for Contact Form 7, WPForms and Fluent Forms

A lightweight WordPress plugin for validating EU VAT IDs directly in forms

Vatigo was built to solve a concrete problem: B2B websites need reliable VAT ID validation right inside the form – no detours, no external dependencies.

The plugin was developed from scratch as a standalone product, with a focus on clean WordPress integration, straightforward UX and a freemium model that scales from offline regex checks to live validation via the official EU VIES API.

The main technical challenge was consistent integration across multiple form plugins – Contact Form 7, WPForms and Fluent Forms – while fully meeting WordPress.org coding standards.

The result is a focused tool for agencies, SaaS products and B2B websites that works plug & play and is GDPR-compliant by design.