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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 81-5319958

PHI SIGMA RHO NATIONAL SORORITY

Also known as ALPHA MU CHAPTER

Tax-exempt · BOULDER, CO 80309

Address and contacts

Address (IRS master file)
1669 EUCLID AVE ROOM 453, BOULDER, CO 80309-0001
In care of
% PHI SIGMA RHO ALPHA MU CHAPTER
Mailing address (990-N for 2025)
1669 Euclid Ave Room 453, Boulder CO 80309
Principal officer (990-N for 2025)
Isabella Rossi, 1669 Euclid Ave Room 453, Boulder CO 80309

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, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2026 990-N for PHI SIGMA RHO NATIONAL SORORITY

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
81-5319958
Tax-exempt status
501(c)(7): Social or recreational club
Donations deductible
No
Exempt since
2010
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B83)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Isabella Rossi
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Neha Ramachandra
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Caroline Oppelt
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Lucille Bosch
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Arva Syed
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Arva Syed
December 31, 2019≤ $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 81-5319958).

Questions about PHI SIGMA RHO NATIONAL SORORITY

What is the EIN of PHI SIGMA RHO NATIONAL SORORITY?
The employer identification number (EIN) of PHI SIGMA RHO NATIONAL SORORITY is 81-5319958.
Is PHI SIGMA RHO NATIONAL SORORITY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(7) since 2010.
Are donations to PHI SIGMA RHO NATIONAL SORORITY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does PHI SIGMA RHO NATIONAL SORORITY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of PHI SIGMA RHO NATIONAL SORORITY 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 PHI SIGMA RHO NATIONAL SORORITY 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 PHI SIGMA RHO NATIONAL SORORITY?
The 990-N for 2025 names Isabella Rossi.

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