- Is National Speleological Society a tax-exempt 501(c)(3)?
- Yes. National Speleological Society is recognised by the IRS as a 501(c)(3) organisation (EIN 54-6026867). The IRS recognised National Speleological Society as tax-exempt in March 1946.
- What is National Speleological Society's EIN?
- National Speleological Society's Employer Identification Number (EIN) is 54-6026867. The EIN was assigned by the IRS in March 1946. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does National Speleological Society do?
- The NSS is dedicated to the scientific study of caves and karst protecting caves through conservation ownership stewardship education and promoting responsible cave exploration caver fellowship.
- Where is National Speleological Society located?
- National Speleological Society is located at 6001 Pulaski Pike NW, Huntsville, AL, 35810.
- When was National Speleological Society founded or recognised by the IRS?
- National Speleological Society was recognised by the IRS as a tax-exempt organisation in March 1946. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is National Speleological Society's annual revenue?
- On its most recent Form 990 (fiscal year 2024), National Speleological Society reported $2.4M in total revenue and $1.5M in total expenses.
- Has National Speleological Society been auto-revoked by the IRS?
- No. National Speleological Society (EIN 54-6026867) 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 National Speleological Society listed in IRS Publication 78?
- Yes. National Speleological Society 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.
