vies-dotnet-api

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European(EU) VIES API VAT validation for dotnet based on the most current information from the official source

The objective of this API is to allow persons involved in the intra-Community supply of goods or of services to obtain confirmation of the validity of the VAT identification number of any specified person.

Installing

The fastest way of getting started using Vies api is to install the NuGet package.

Package Manager:

Install-Package vies-dotnet-api -Version 2.2.1

.NET CLI:

dotnet add package vies-dotnet-api --version 2.2.1

Package Reference

<PackageReference Include="vies-dotnet-api" Version="2.2.1" />

Usage

Checking a VAT number using the vies-dotnet-api

Checking if a EU VAT number is valid

 var result = ViesManager.IsValid("RO123456789");

or

 var result = ViesManager.IsValid("RO","123456789");

Checking if a EU VAT number is active

var viesManager = new ViesManager();

var result = await viesManager.IsActiveAsync("RO123456789");

or

var result = await viesManager.IsActiveAsync("RO","123456789");

Clarification

Since January 1, 2021 the UK is no longer a member of the European Union and as a result, the VIES service provided by the European Commission no longer validates VAT ID's for the UK.

Checking GB VAT number

...
var validationResult = await viesManager.IsActiveAsync("GB434031494");

will return the following message:

Great Britain(GB) is no longer supported by VIES services provided by EC since 2021-01-01 because of Brexit.

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License

The API is released under Apache 2 open-source license. You can use it for both personal and commercial purposes, build upon it and modify it.

Thanks

• JetBrains for my Open Source licence

• AppVeyor for allowing free build CI services for Open Source projects