Question 1

Is Tidelines Institute a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Tidelines Institute is recognised by the IRS as a 501(c)(3) organisation (EIN 47-2128576). The IRS recognised Tidelines Institute as tax-exempt in February 2015.

Question 2

What is Tidelines Institute's EIN?

Accepted Answer

Tidelines Institute's Employer Identification Number (EIN) is 47-2128576. The EIN was assigned by the IRS in February 2015. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Tidelines Institute do?

Accepted Answer

Tidelines institute is dedicated to the education and inspiration of rising environmental leaders within the phenomenal setting of southeast alaska.

Question 4

Where is Tidelines Institute located?

Accepted Answer

Tidelines Institute is located at PO Box 100, Gustavus, AK, 99826.

Question 5

When was Tidelines Institute founded or recognised by the IRS?

Accepted Answer

Tidelines Institute was recognised by the IRS as a tax-exempt organisation in February 2015. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Tidelines Institute's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2025), Tidelines Institute reported $967K in total revenue and $827K in total expenses.

Question 7

Has Tidelines Institute been auto-revoked by the IRS?

Accepted Answer

No — Tidelines Institute (EIN 47-2128576) 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 Tidelines Institute listed in IRS Publication 78?

Accepted Answer

Yes — Tidelines Institute 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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Tidelines Institute

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