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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 80-0759374

AMERICAN THORACIC SOCIETY INC

Also known as WASHINGTON HAWAII ALASKA THORACIC

Tax-exempt · SEATTLE, WA 98118

Address and contacts

Address (IRS master file)
5107 S PEARL ST, SEATTLE, WA 98118-2145
In care of
% ATS
Mailing address (990-N for 2025)
5107 South Pearl Street, Seattle WA 98118
Principal officer (990-N for 2025)
Martha Billings, 325 Ninth Ave, Seattle WA 98104

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, 2024990-N on file

File the 2026 990-N for AMERICAN THORACIC SOCIETY INC

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

IRS record

EIN
80-0759374
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
2014
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Martha Billings
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Dr Martha E Billings
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Erik R Swenson
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: John M Clark
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: John M Clark
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Robin EvansAgnew
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 80-0759374).

Questions about AMERICAN THORACIC SOCIETY INC

What is the EIN of AMERICAN THORACIC SOCIETY INC?
The employer identification number (EIN) of AMERICAN THORACIC SOCIETY INC is 80-0759374.
Is AMERICAN THORACIC SOCIETY INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
Which annual return does AMERICAN THORACIC SOCIETY INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of AMERICAN THORACIC SOCIETY INC 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 AMERICAN THORACIC SOCIETY INC 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 AMERICAN THORACIC SOCIETY INC?
The 990-N for 2025 names Martha Billings.

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