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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 99-4755275

INTERLOCKED SQUARES OF SILICON VALLEY

Tax-exempt · LOS ALTOS, CA 94023

Address and contacts

Address (IRS master file)
PO BOX 1301, LOS ALTOS, CA 94023-1301
In care of
% CAROL A COHANE
Mailing address (990-N for 2025)
PO Box 1301, Los Altos CA 94023
Principal officer (990-N for 2025)
Patricia Ho, PO Box 1301, Los Altos CA 94023

California records

California keeps its own records of charities and corporations. Search them by EIN 99-4755275 or by the name INTERLOCKED SQUARES OF SILICON VALLEY.

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-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, 2024Check at the IRS

File the 2026 990-N for INTERLOCKED SQUARES OF SILICON VALLEY

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

IRS record

EIN
99-4755275
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
2019
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Patricia Ho
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Carol Cohane
December 31, 2024≤ $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 99-4755275).

Questions about INTERLOCKED SQUARES OF SILICON VALLEY

What is the EIN of INTERLOCKED SQUARES OF SILICON VALLEY?
The employer identification number (EIN) of INTERLOCKED SQUARES OF SILICON VALLEY is 99-4755275.
Is INTERLOCKED SQUARES OF SILICON VALLEY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Which annual return does INTERLOCKED SQUARES OF SILICON VALLEY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERLOCKED SQUARES OF SILICON VALLEY 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 INTERLOCKED SQUARES OF SILICON VALLEY 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 INTERLOCKED SQUARES OF SILICON VALLEY?
The 990-N for 2025 names Patricia Ho.

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