https://github.com/soenneker/soenneker.normalizers.ein

A fast and allocation-efficient normalizer that converts raw input into a valid EIN format (XX-XXXXXXX), validating exactly 9 digits and ignoring non-numeric characters.
https://github.com/soenneker/soenneker.normalizers.ein

basenormalizer csharp dotnet ein einnormalizer id normalizer normalizers tax util

Last synced: 43 minutes ago
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A fast and allocation-efficient normalizer that converts raw input into a valid EIN format (XX-XXXXXXX), validating exactly 9 digits and ignoring non-numeric characters.

• Host: GitHub
• URL: https://github.com/soenneker/soenneker.normalizers.ein
• Owner: soenneker
• License: mit
• Created: 2025-05-08T18:54:06.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2026-02-21T09:13:59.000Z (7 days ago)
• Last Synced: 2026-02-21T09:37:59.326Z (7 days ago)
• Topics: basenormalizer, csharp, dotnet, ein, einnormalizer, id, normalizer, normalizers, tax, util
• Language: C#
• Homepage: https://soenneker.com
• Size: 392 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: .github/CONTRIBUTING.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Code of conduct: .github/CODE_OF_CONDUCT.md
  • Security: .github/SECURITY.md

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README

          
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# ![](https://user-images.githubusercontent.com/4441470/224455560-91ed3ee7-f510-4041-a8d2-3fc093025112.png) Soenneker.Normalizers.Ein

### A fast and allocation-efficient normalizer that converts raw input into a valid EIN format (XX-XXXXXXX), validating exactly 9 digits and ignoring non-numeric characters.

## Installation

```

dotnet add package Soenneker.Normalizers.Ein

```