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Nonprofit · EIN 83-2403953

SAN DIEGO SIGNAL LAB

Tax-exempt · SAN DIEGO, CA 92160

Address and contacts

Address (IRS master file)
4740 MISSION GORGE PL UNIT 600944, SAN DIEGO, CA 92160-7039
Mailing address (990-N for 2023)
4740 Mission Gorge Pl 600944, San Diego CA 92160
Principal officer (990-N for 2023)
Ian McFarland, 4740 Mission Gorge Pl 600944, San Diego CA 92160

California records

California keeps its own records of charities and corporations. Search them by EIN 83-2403953 or by the name SAN DIEGO SIGNAL LAB.

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, 2025Not on file
2023December 31, 2023May 15, 2024990-N on file

IRS record

EIN
83-2403953
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)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2023
Officer: Ian McFarland
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Ian McFarland
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: IAN MCFARLAND
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 83-2403953).

Questions about SAN DIEGO SIGNAL LAB

What is the EIN of SAN DIEGO SIGNAL LAB?
The employer identification number (EIN) of SAN DIEGO SIGNAL LAB is 83-2403953.
Is SAN DIEGO SIGNAL LAB tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Are donations to SAN DIEGO SIGNAL LAB tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SAN DIEGO SIGNAL LAB file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SAN DIEGO SIGNAL LAB 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 SAN DIEGO SIGNAL LAB last file with the IRS?
The latest return in the IRS public files is the 990-N for 2023 for the year ended December 31, 2023.
Who is the principal officer of SAN DIEGO SIGNAL LAB?
The 990-N for 2023 names Ian McFarland.

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