Question 1

Is Lesson Study Alliance a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Lesson Study Alliance is recognised by the IRS as a 501(c)(3) organisation (EIN 27-3869694). The IRS recognised Lesson Study Alliance as tax-exempt in February 2011.

Question 2

What is Lesson Study Alliance's EIN?

Accepted Answer

Lesson Study Alliance's Employer Identification Number (EIN) is 27-3869694. The EIN was assigned by the IRS in February 2011. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Lesson Study Alliance do?

Accepted Answer

Provide workshops coaching and conferences to help teachers use Lesson Study to improve teaching and learning especially in mathematics.

Question 4

Where is Lesson Study Alliance located?

Accepted Answer

Lesson Study Alliance is located at 5055 S Dorchester Ave Unit 305, Chicago, IL, 60615.

Question 5

When was Lesson Study Alliance founded or recognised by the IRS?

Accepted Answer

Lesson Study Alliance was recognised by the IRS as a tax-exempt organisation in February 2011. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Lesson Study Alliance's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2025), Lesson Study Alliance reported $7K in total revenue and $26K in total expenses.

Question 7

Has Lesson Study Alliance been auto-revoked by the IRS?

Accepted Answer

No — Lesson Study Alliance (EIN 27-3869694) 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 Lesson Study Alliance listed in IRS Publication 78?

Accepted Answer

Yes — Lesson Study Alliance 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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Lesson Study Alliance

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