What is EIN Finder?
EIN Finder is a searchable database of over five million employer identification numbers (also known as tax IDs, FEINs, TINs, etc.). These are nine-digit numbers assigned by the IRS to businesses operating in the United States. EINs must be included on numerous tax forms, from W-9s to customs declarations. Every FreeERISA gets three free searches in EIN Finder, after which it becomes a premium service.