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Nonprofit · EIN 93-4371563

RARE DISEASE SCIENCES

Tax-exempt · BOULDER, CO 80302

Address and contacts

Address (IRS master file)
901 PEARL ST UNIT 301, BOULDER, CO 80302-5487
In care of
% LARRY GOLD
Mailing address (990-N for 2025)
901 PEARL ST UNIT 301, BOULDER CO 80302
Principal officer (990-N for 2025)
LARRY GOLD, 901 PEARL ST UNIT 301, BOULDER CO 80302

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-N on file
2024December 31, 2024May 15, 2025Check at the IRS
2023December 31, 2023May 15, 2024Check at the IRS

IRS record

EIN
93-4371563
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2025
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Medical research (H20)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: LARRY GOLD
December 31, 2025≤ $50,000 receipts––e-Postcard

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 93-4371563).

Questions about RARE DISEASE SCIENCES

What is the EIN of RARE DISEASE SCIENCES?
The employer identification number (EIN) of RARE DISEASE SCIENCES is 93-4371563.
Is RARE DISEASE SCIENCES tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to RARE DISEASE SCIENCES tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does RARE DISEASE SCIENCES file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of RARE DISEASE SCIENCES due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did RARE DISEASE SCIENCES last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of RARE DISEASE SCIENCES?
The 990-N for 2025 names LARRY GOLD.

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