Question 1

Is Mattachine Society of Washington a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Mattachine Society of Washington is recognised by the IRS as a 501(c)(3) organisation (EIN 45-4584473). The IRS recognised Mattachine Society of Washington as tax-exempt in September 2013.

Question 2

What is Mattachine Society of Washington's EIN?

Accepted Answer

Mattachine Society of Washington's Employer Identification Number (EIN) is 45-4584473. The EIN was assigned by the IRS in September 2013. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Mattachine Society of Washington do?

Accepted Answer

Educational programs.

Question 4

Where is Mattachine Society of Washington located?

Accepted Answer

Mattachine Society of Washington is located at 1527 16th Street NW STE 7, Washington, DC, 20036.

Question 5

When was Mattachine Society of Washington founded or recognised by the IRS?

Accepted Answer

Mattachine Society of Washington was recognised by the IRS as a tax-exempt organisation in September 2013. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Mattachine Society of Washington's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2025), Mattachine Society of Washington reported $31K in total revenue and $40K in total expenses.

Question 7

Has Mattachine Society of Washington been auto-revoked by the IRS?

Accepted Answer

No — Mattachine Society of Washington (EIN 45-4584473) 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 Mattachine Society of Washington listed in IRS Publication 78?

Accepted Answer

Yes — Mattachine Society of Washington 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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Mattachine Society of Washington

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