Cryptolens.VATCalculator 1.0.1

.NET Standard 2.0
dotnet add package Cryptolens.VATCalculator --version 1.0.1
NuGet\Install-Package Cryptolens.VATCalculator -Version 1.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Cryptolens.VATCalculator" Version="1.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Cryptolens.VATCalculator --version 1.0.1
#r "nuget: Cryptolens.VATCalculator, 1.0.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Cryptolens.VATCalculator as a Cake Addin
#addin nuget:?package=Cryptolens.VATCalculator&version=1.0.1

// Install Cryptolens.VATCalculator as a Cake Tool
#tool nuget:?package=Cryptolens.VATCalculator&version=1.0.1

VAT Calculator

This library does two things:

  1. Computes the VAT given a country and a VAT number.
  2. Verifies VAT number with the EU Comission's SOAP app.

When verifying VAT number, don't view this as an on-demand service, since it might fail occasionally due to errors or maintenance (see this document)


public void TestCalculateVAT()
    // if it's a Swedish company (or any other EU member state)
    // but no VAT is given, then the tax should be 25%.
    Assert.Equal(2500, VATService.CalculateVAT("SE", null).Tax);

    // if it's a Swedish company (or any other EU member state)
    // and a valid VAT is provided, then no tax is applied and
    // it's instead the responsibility of the buyer  to pay it
    // (reversed tax liability)
    Assert.Equal(0, VATService.CalculateVAT("SE", "valid VAT").Tax);

    // if it's a US company (or any other non-EU country), then
    // it's export and no tax should be applied.
    Assert.Equal(0, VATService.CalculateVAT("US", null).Tax);

public void TestIsValidVAT()
    // before we can compute the tax, we need to check the VAT
    // with the EU comission's API. Note, this service is not
    // working 24/7, so we may need to check the VAT serveral times.
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.0.1 791 9/3/2018
1.0.0 624 8/29/2018

Update metadata.