EIN Formatter
Format and validate an EIN.
Enter EIN (9 digits)
An EIN (Employer Identification Number) is written as XX-XXXXXXX. This checks the format and campus prefix only — not whether the number is actually assigned.
Reference tools
About EIN Formatter
EIN Formatter is a free, private reference tool that lets you format and validate an ein. Like every tool on NWS Tools, it runs entirely in your browser — nothing is uploaded, there are no accounts, and there's no tracking. Just open it and go.
Frequently asked questions
- Is EIN Formatter free to use?
- Yes. EIN Formatter is completely free, with no account, sign-up or limits.
- Are my files or data uploaded anywhere?
- No. EIN Formatter runs entirely in your browser. Your files, text and numbers are processed on your own device and are never uploaded to a server.
- Does EIN Formatter work offline?
- Once the page has loaded, most tools keep working with no internet connection. NWS Tools is a Progressive Web App you can even install.
- Do I need to install any software?
- No installation is required — EIN Formatter works instantly in any modern browser on desktop or mobile.