- Is Proof School a tax-exempt 501(c)(3)?
- Yes. Proof School is recognised by the IRS as a 501(c)(3) organisation (EIN 46-3770194). The IRS recognised Proof School as tax-exempt in May 2014.
- What is Proof School's EIN?
- Proof School's Employer Identification Number (EIN) is 46-3770194. The EIN was assigned by the IRS in May 2014. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Proof School do?
- Offering a liberal arts education for kids who love math, reasoning and communication.
- Where is Proof School located?
- Proof School is located at 221 Main Street 104, San Francisco, CA, 94105.
- When was Proof School founded or recognised by the IRS?
- Proof School was recognised by the IRS as a tax-exempt organisation in May 2014. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is Proof School's annual revenue?
- On its most recent Form 990 (fiscal year 2024), Proof School reported $11.2M in total revenue and $6.7M in total expenses.
- Has Proof School been auto-revoked by the IRS?
- No. Proof School (EIN 46-3770194) 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.
- Is Proof School listed in IRS Publication 78?
- Yes. Proof School 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.
