Skip to main content
Gruv.ai logo
VAT Verification

Free EU VAT Number Validator

Confirm EU VAT registration numbers against the official VIES database and keep a timestamped evidence snapshot for your invoice records.

Live VIES checkEvidence snapshotFree
Jump to the toolBrowse all tools

Validate an EU VAT number

Enter a VAT ID (e.g., DE123…) and confirm its status via VIES.

Loading…

This sends the VAT ID to the official VIES service for validation.

Need an invoice? Open free invoice generator →

Informational only

This tool checks VAT IDs against VIES. VIES can be slow or temporarily unavailable.

  • A “valid” result is not a guarantee of tax treatment. Always keep evidence and follow invoice rules.
  • VAT IDs are business identifiers. Avoid sharing them unnecessarily.
Process

How it works

  1. 01

    Pick the country

    EU member state the VAT ID was issued in.

  2. 02

    Enter the VAT number

    Formatted to that country's scheme.

  3. 03

    Validate live

    The tool queries VIES and returns a validity result + name when available.

  4. 04

    Keep the evidence

    Timestamp + result stored alongside your invoice record.

Keep going

Related tools

VAT Reverse Charge Checker

Pair the VAT ID check with reverse-charge decision logic.

Free Invoice Generator

Drop the validated VAT ID into a client-ready invoice.

Tax Treaty Checker

Check treaty-reduced withholding alongside VAT posture.

Frequently Asked Questions

What is VIES?+
VIES is the European Commission's VAT Information Exchange System for validating EU VAT registration numbers. Availability can vary by member state.
Why should I validate an EU VAT number?+
Validation establishes that your customer is a registered taxable business. Keep the evidence (timestamp, result, and customer details) alongside your invoice records.
What if VIES is down or slow?+
Try again later. VIES is temporarily unavailable from time to time. A temporary failure does not mean the VAT number is invalid.
Does "valid" guarantee reverse charge VAT applies?+
No. VAT treatment depends on the specific transaction and local rules. Validation is one piece of evidence, not a full determination.
Does Gruv run VAT validation during onboarding?+
Yes. Gruv treats VAT validation as a KYB/compliance signal and keeps an audit trail for ops and invoicing in supported workflows.
How should I use this VAT ID result?+
Use this as an evidence check for invoice preparation. VAT treatment still depends on the transaction, customer, and local rules.

VIES checks are step one. Gruv runs the rest

Slot VAT validation into a live onboarding gate alongside KYC, sanctions screening, and tax-form collection before the first euro moves.

Book a demoRead the docs

Many teams start with a narrow launch in weeks.