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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 27-0590466

WOMEN IN SCIENCE

Tax-exempt · DELL RAPIDS, SD 57022

Address and contacts

Address (IRS master file)
1103 WYLAND DR, DELL RAPIDS, SD 57022-1114
In care of
% MARY LOU LACEY OR ANNA FISHER
Mailing address (990-N for 2025)
1103 wyland dr, dell rapids SD 57022
Principal officer (990-N for 2025)
Michelle Buffalo knuppe, 1103 wyland dr, dell rapids SD 57022

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, 2024990-N on file

File the 2026 990-N for WOMEN IN SCIENCE

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

IRS record

EIN
27-0590466
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
2012
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Category (NTEE)
Human services (P20)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Michelle Buffalo knuppe
June 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Michelle Buffalo Knuppe
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Danaca Shettler
June 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Danaca Schettler
June 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Mary Lacey
June 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Karen Heiling
June 30, 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 27-0590466).

Questions about WOMEN IN SCIENCE

What is the EIN of WOMEN IN SCIENCE?
The employer identification number (EIN) of WOMEN IN SCIENCE is 27-0590466.
Is WOMEN IN SCIENCE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2012.
Are donations to WOMEN IN SCIENCE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does WOMEN IN SCIENCE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of WOMEN IN SCIENCE 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 WOMEN IN SCIENCE 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 WOMEN IN SCIENCE?
The 990-N for 2025 names Michelle Buffalo knuppe.

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