Question 1

Is Ellen Weiss a tax-exempt 501(c)(3)?

Accepted Answer

Yes. Ellen Weiss is recognised by the IRS as a 501(c)(3) organisation (EIN 26-4739791). The IRS recognised Ellen Weiss as tax-exempt in July 2010.

Question 2

What is Ellen Weiss's EIN?

Accepted Answer

Ellen Weiss's Employer Identification Number (EIN) is 26-4739791. The EIN was assigned by the IRS in July 2010. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Ellen Weiss do?

Accepted Answer

The organization works to advance and disseminate research on causal effects of education practices, interventions, programs, and policies.

Question 4

Where is Ellen Weiss located?

Accepted Answer

Ellen Weiss is located at 1201 Seven LOCKS Road 360, Rockville, MD, 20854.

Question 5

When was Ellen Weiss founded or recognised by the IRS?

Accepted Answer

Ellen Weiss was recognised by the IRS as a tax-exempt organisation in July 2010. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Ellen Weiss's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2025), Ellen Weiss reported $766K in total revenue and $1.1M in total expenses.

Question 7

Has Ellen Weiss been auto-revoked by the IRS?

Accepted Answer

No. Ellen Weiss (EIN 26-4739791) 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 Ellen Weiss listed in IRS Publication 78?

Accepted Answer

Yes. Ellen Weiss is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.

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Society for Research on Educational Effectiveness

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