Soenneker.Normalizers.Ein 4.0.210

Prefix Reserved

There is a newer version of this package available.
See the version list below for details.

dotnet add package Soenneker.Normalizers.Ein --version 4.0.210

NuGet\Install-Package Soenneker.Normalizers.Ein -Version 4.0.210

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="Soenneker.Normalizers.Ein" Version="4.0.210" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Soenneker.Normalizers.Ein" Version="4.0.210" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Normalizers.Ein" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Soenneker.Normalizers.Ein --version 4.0.210

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Soenneker.Normalizers.Ein, 4.0.210"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Soenneker.Normalizers.Ein@4.0.210

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Soenneker.Normalizers.Ein&version=4.0.210
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Normalizers.Ein&version=4.0.210
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Soenneker.Normalizers.Ein

Extracts nine ASCII digits from user input and formats them as XX-XXXXXXX.

Installation

dotnet add package Soenneker.Normalizers.Ein

Registration

using Soenneker.Normalizers.Ein.Registrars;

builder.Services.AddEinNormalizerAsSingleton();
// or: builder.Services.AddEinNormalizerAsScoped();

The implementation has no mutable per-call state and can be shared as a singleton.

Usage

using Soenneker.Normalizers.Ein.Abstract;

string? normalized = normalizer.Normalize("12 345 6789");
// "12-3456789"

Behavior is intentionally narrow:

Input	Result
`123456789`	`12-3456789`
`12-3456789`	`12-3456789`
`abc12.345.6789xyz`	`12-3456789`
`12345678`	`null`
`1234567890`	`null`
null, empty, or whitespace	`null`

Non-ASCII digits do not count. Non-numeric characters are ignored, the original input must be between 9 and 20 characters, and the result is null unless exactly nine digits remain.

This is formatting, not EIN verification. It does not validate IRS prefix assignments, confirm that an EIN was issued, or establish that the identifier belongs to an organization. Perform any required business verification separately.

EINs are sensitive identifiers. Avoid logging raw or normalized values, and apply appropriate access controls and retention rules when storing them.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- Soenneker.Extensions.String (>= 4.0.735)
- Soenneker.Normalizers.Base (>= 4.0.49)

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
4.0.216	0	9/5/2026
4.0.215	32	9/4/2026
4.0.214	32	9/4/2026
4.0.213	37	9/4/2026
4.0.212	40	9/4/2026
4.0.211	83	8/31/2026
4.0.210	78	8/31/2026
4.0.209	78	8/31/2026
4.0.208	85	8/31/2026
4.0.207	83	8/30/2026
4.0.206	85	8/30/2026
4.0.205	87	8/30/2026
4.0.204	81	8/30/2026
4.0.203	76	8/30/2026
4.0.202	80	8/30/2026
4.0.201	85	8/29/2026
4.0.200	84	8/29/2026
4.0.199	78	8/29/2026
4.0.198	78	8/29/2026
4.0.197	92	8/29/2026

Updated NuGet packages