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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 38-4088727

BUILDING BLOC INC

Also known as BLOC

Tax-exempt · YORBA LINDA, CA 92887

Address and contacts

Address (IRS master file)
21400 CASINO RIDGE RD, YORBA LINDA, CA 92887-1203
In care of
% WESTON K SEID
Mailing address (990-N for 2024)
21400 Casino Ridge Road, Yorba Linda CA 92887
Principal officer (990-N for 2024)
Weston Seid, 21400 Casino Ridge Road, Yorba Linda CA 92887

California records

California keeps its own records of charities and corporations. Search them by EIN 38-4088727 or by the name BUILDING BLOC INC.

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, 2026Not on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2025 990-N for BUILDING BLOC INC

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

IRS record

EIN
38-4088727
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
2019
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B03)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Weston Seid
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Weston Seid
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Weston Seid
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Weston Seid
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Weston Seid
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 38-4088727).

Questions about BUILDING BLOC INC

What is the EIN of BUILDING BLOC INC?
The employer identification number (EIN) of BUILDING BLOC INC is 38-4088727.
Is BUILDING BLOC INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Are donations to BUILDING BLOC INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does BUILDING BLOC INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of BUILDING BLOC INC 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 BUILDING BLOC INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended December 31, 2024.
Who is the principal officer of BUILDING BLOC INC?
The 990-N for 2024 names Weston Seid.

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