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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 52-1776763

ONCOLOGY NURSING SOCIETY

Also known as C257 NORTH VALLEY CA

Tax-exempt · CHICO, CA 95926

Address and contacts

Address (IRS master file)
1083 CONNO REAL CT, CHICO, CA 95926-0000
In care of
% REBECCA SMITH
Mailing address (990-N for 2007)
PO Box 372, Chico CA 95927
Principal officer (990-N for 2007)
Nancy Ledoyen, 2692 Escallonia Way, Chico CA 95973

California records

California keeps its own records of charities and corporations. Search them by EIN 52-1776763 or by the name ONCOLOGY NURSING SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2026Not on file
2024December 31, 2024May 15, 2025Not on file
2023December 31, 2023May 15, 2024Not on file

At risk of automatic revocation

None of the last three returns is in the IRS public files. The IRS revokes tax-exempt status after three consecutive years without a return. Recent filings can take a few weeks to appear.

File the 2025 990-EZ for ONCOLOGY NURSING SOCIETY

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
52-1776763
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1981
Accounting year ends
December
Files
Form 990 or 990-EZ

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2007
Officer: Nancy Ledoyen
December 31, 2007≤ $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 52-1776763).

Questions about ONCOLOGY NURSING SOCIETY

What is the EIN of ONCOLOGY NURSING SOCIETY?
The employer identification number (EIN) of ONCOLOGY NURSING SOCIETY is 52-1776763.
Is ONCOLOGY NURSING SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1981.
Are donations to ONCOLOGY NURSING SOCIETY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does ONCOLOGY NURSING SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of ONCOLOGY NURSING SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did ONCOLOGY NURSING SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2007 for the year ended December 31, 2007.
Who is the principal officer of ONCOLOGY NURSING SOCIETY?
The 990-N for 2007 names Nancy Ledoyen.

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