Every charity has its own unique federal employer identification number (EIN), which it obtains by applying to the IRS. An EIN is typically a nine-digit number, shown like 12-3456789. A few charities have EINs with eight or fewer digits (normally shown with a leading zero like 01-2345678).
While charity names can be similar, no two charities have the same EIN. EIN checking is more precise than DNA testing.
We encourage charities to prominently display their EINs, to help donors find charities and avoid “charity” scams.