
EIN Letter From IRS: What It Is and How to Get a Copy
The EIN letter from the IRS is the document that proves your Employer Identification Number was officially assigned. The original is the CP 575 confirmation notice, issued once when the EIN is granted and never reissued; if it is lost, the IRS provides a 147C verification letter instead, which carries the same legal weight. Banks, payment processors and marketplaces accept either document, and non-resident founders who applied by Form SS-4 usually receive the CP 575 by mail or fax rather than instantly online.




