Program Update – Vatlidator 3.0 now support validation for all EU VAT IDs

Vatlidator 3.0 - English UIAfter interruption, Vatlidator 2.1 is not longer retrieve VAT ID info.

Now introducing the Vatlidator 3.0, a whole new validation and info tool for all the EU VAT IDs (AT, BE, BG, CY, CZ, DE, DK, EE, EL, ES, FI, FR, GB, HR, HU, IE, IT, LT, LU, LV, MT, NL, PL, PT, RO, SE, SI, SK), retrieving information directrly from the European Commision VIES SOAP Service.

The new interface, now supports two languages, Greek and English.

As its predecessor, is free software distributed under the terms of the GNU GPL 3 with installer and portable package available.

For downloads, updates and more info see the program’s home page.


A validation tool for greek VIES VAT IDs. Targeting the .NET platform 3.5
Uses ViesGr.dll. to check if a greek VIES VAT number is valid
(NOT if exists and corresponds to a natural person or a legal entity).

Also supports an automated multilingual interface, by using .lang files combining the use of Props.dll. You can add more languages by generate .land files based on, who founded in your program installation folder. If you see your language file at the next distribution and get your mention, just contact me.

The application distributed under the terms of GNU General Public License in to two versions. One complete with installer and one portable (all-in-exe) but stripped from multilingual support.

You can download the version you prefer from my folder.
Complete version with installer:
Portable version:


A greek VIES VAT number validation library,
developed in SharpDevelop, at C# language, targeted .NET/Mono

The library have one static method which check if a greek VIES VAT number is valid,
and NOT if exists and corresponds to a natural person or a legal entity.

This library is FREE SOFTWARE, comes with ABSOLUTELY NO WARRANTY; and distributed under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, for details see

You can find the library precompiled with documentation included at my place
or you can check out the project’s home page.