An Employer Identification Number is the IRS's public identifier for a business or organization — the business equivalent of an SSN, but not a secret. You'll need it for W-2s, 1099s, and donation receipts. Knowing an EIN proves nothing about who you're talking to: never treat "they knew the EIN" as verification of a caller or invoice.
52-0883107 questions
What is FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE's EIN?
52-0883107. It comes from FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE's own SEC filings record (source linked above), checked July 5, 2026. For tax filing, the authoritative copy is the one printed on your W-2 (box b) or 1099 — use that if it ever differs.
Is it safe that this EIN is public?
Yes — EINs are public identifiers, published in SEC filings and IRS records, and they're routinely shared on W-2s, 1099s, and donation receipts. Knowing one proves nothing about identity: never treat an EIN alone as verification of a caller, email, or invoice.
Where does this EIN come from?
From FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE's own submissions record with the SEC (the source linked on this page) — the company states its EIN in its filings. That's the same number employees see in box b of a W-2 from the company.