Question 1

Is The STIFF Person Syndrome Research Foundation Inc a tax-exempt 501(c)(3)?

Accepted Answer

Yes — The STIFF Person Syndrome Research Foundation Inc is recognised by the IRS as a 501(c)(3) organisation (EIN 84-2291780). The IRS recognised The STIFF Person Syndrome Research Foundation Inc as tax-exempt in November 2019.

Question 2

What is The STIFF Person Syndrome Research Foundation Inc's EIN?

Accepted Answer

The STIFF Person Syndrome Research Foundation Inc's Employer Identification Number (EIN) is 84-2291780. The EIN was assigned by the IRS in November 2019. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does The STIFF Person Syndrome Research Foundation Inc do?

Accepted Answer

Registry Development SPSRF advanced its patient registry with NORD leading to a July 2025 launch for global SPS data collection and Research

Question 4

Where is The STIFF Person Syndrome Research Foundation Inc located?

Accepted Answer

The STIFF Person Syndrome Research Foundation Inc is located at 8621 Burdette Rd, Bethesda, MD, 20817.

Question 5

When was The STIFF Person Syndrome Research Foundation Inc founded or recognised by the IRS?

Accepted Answer

The STIFF Person Syndrome Research Foundation Inc was recognised by the IRS as a tax-exempt organisation in November 2019. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is The STIFF Person Syndrome Research Foundation Inc's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), The STIFF Person Syndrome Research Foundation Inc reported $622K in total revenue and $364K in total expenses.

Question 7

Has The STIFF Person Syndrome Research Foundation Inc been auto-revoked by the IRS?

Accepted Answer

No — The STIFF Person Syndrome Research Foundation Inc (EIN 84-2291780) 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 The STIFF Person Syndrome Research Foundation Inc listed in IRS Publication 78?

Accepted Answer

Yes — The STIFF Person Syndrome Research Foundation Inc 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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The STIFF Person Syndrome Research Foundation Inc

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