Question 1

Is Crossref a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Crossref is recognised by the IRS as a 501(c)(6) organisation (EIN 04-3502255). The IRS recognised Crossref as tax-exempt in May 2006.

Question 2

What is Crossref's EIN?

Accepted Answer

Crossref's Employer Identification Number (EIN) is 04-3502255. The EIN was assigned by the IRS in May 2006. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Crossref do?

Accepted Answer

Crossref makes research outputs easy to find, cite, link, assess, and reuse.

Question 4

Where is Crossref located?

Accepted Answer

Crossref is located at 50 Salem ST Building a Suite 304, Lynnfield, MA, 01940.

Question 5

When was Crossref founded or recognised by the IRS?

Accepted Answer

Crossref was recognised by the IRS as a tax-exempt organisation in May 2006. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Crossref's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), Crossref reported $13.9M in total revenue and $10.5M in total expenses.

Question 7

Has Crossref been auto-revoked by the IRS?

Accepted Answer

No — Crossref (EIN 04-3502255) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.

Question 8

Is Crossref listed in IRS Publication 78?

Accepted Answer

Givalgo Discover did not find Crossref in the most recent IRS Publication 78 download. Some tax-exempt organisations (e.g., churches and government instrumentalities) are eligible to receive deductible contributions without appearing in Pub 78 — verify directly with the IRS if uncertain.

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Crossref

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