U.S. EIN Validator
Validate U.S. Employer Identification Number
Enter a U.S. Employer Identification Number (EIN) to verify its validity.
About this Validator
This tool validates U.S. Employer Identification Numbers according to official requirements.
The validator checks if a given EIN follows the correct structure and format for business tax identification.
This validation only confirms if a number follows the correct format. It does not verify if the number is actually registered with the IRS.
What is an EIN (Employer Identification Number)?
EIN Structure (9 digits: XX-XXXXXXX): Format Elements: • First two digits: Prefix number • Last seven digits: Sequential number Business Types: • Corporations • Partnerships • LLCs • Non-profits • Sole proprietorships • Government agencies Registration Requirements: • Employee withholding • Business taxation • Banking purposes • Legal entities
Validation Features: • Length verification • Prefix validation • Format check • Pattern compliance • Business rules
Used for: • Tax reporting • Employee withholding • Business banking • Federal filings • Contractor payments • Legal documentation
Important Notes: • Federal identifier • Business specific • Tax related • Legal requirement • IRS issued
If you need to generate an EIN for testing purposes, here is a U.S. EIN Generator