- Is Castlerock Museum a tax-exempt 501(c)(3)?
- Yes. Castlerock Museum is recognised by the IRS as a 501(c)(3) organisation (EIN 20-0335960). The IRS recognised Castlerock Museum as tax-exempt in January 2004.
- What is Castlerock Museum's EIN?
- Castlerock Museum's Employer Identification Number (EIN) is 20-0335960. The EIN was assigned by the IRS in January 2004. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Castlerock Museum do?
- Ongoing construction of museum displays
- Where is Castlerock Museum located?
- Castlerock Museum is located at PO Box 335, Alma, WI, 54610.
- When was Castlerock Museum founded or recognised by the IRS?
- Castlerock Museum was recognised by the IRS as a tax-exempt organisation in January 2004. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is Castlerock Museum's annual revenue?
- On its most recent Form 990 (fiscal year 2025), Castlerock Museum reported $198K in total revenue and $209K in total expenses.
- Has Castlerock Museum been auto-revoked by the IRS?
- No. Castlerock Museum (EIN 20-0335960) 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 Castlerock Museum listed in IRS Publication 78?
- Yes. Castlerock Museum 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.
