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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 46-4028310

LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS

Tax-exempt · SAN DIEGO, CA 92104

Address and contacts

Address (IRS master file)
1787 PENTUCKETT AVE, SAN DIEGO, CA 92104-5727
In care of
% JEANE WONG
Mailing address (990-N for 2025)
1787 Pentuckett Avenue, San Diego CA 92104
Principal officer (990-N for 2025)
Jeane Wong, 1787 Pentuckett Avenue, San Diego CA 92104

California records

California keeps its own records of charities and corporations. Search them by EIN 46-4028310 or by the name LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS.

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026990-N on file
2024June 30, 2025November 17, 2025990-N on file
2023June 30, 2024November 15, 2024Check at the IRS

File the 2026 990-N for LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS

Due November 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
46-4028310
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2014
Accounting year ends
June
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Jeane Wong
June 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Jeane Wong
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Jeane Wong
June 30, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Jeane Wong
June 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Jeane Wong
June 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2017
Officer: Jeane Wong
June 30, 2018≤ $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 46-4028310).

Questions about LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS

What is the EIN of LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS?
The employer identification number (EIN) of LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS is 46-4028310.
Is LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
Are donations to LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS due?
The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended June 30, 2026.
Who is the principal officer of LEAGUE OF EXTRAORDINARY SCIENTISTS AND ENGINEERS?
The 990-N for 2025 names Jeane Wong.

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