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Nonprofit · EIN 86-1840110

IOWA SCIENCE OLYMPIAD

Tax-exempt · WATERLOO, IA 50701

Address and contacts

Address (IRS master file)
1921 FALLS AVE, WATERLOO, IA 50701-2326
Mailing address (990-N for 2024)
1921 Falls Ave, Waterloo IA 50701
Principal officer (990-N for 2024)
Jill Maroo, 1921 Falls Ave, Waterloo IA 50701

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

IRS record

EIN
86-1840110
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
2021
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Jill Maroo
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Jill Maroo
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Jill Maroo
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Jill Maroo
December 31, 2021≤ $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 86-1840110).

Questions about IOWA SCIENCE OLYMPIAD

What is the EIN of IOWA SCIENCE OLYMPIAD?
The employer identification number (EIN) of IOWA SCIENCE OLYMPIAD is 86-1840110.
Is IOWA SCIENCE OLYMPIAD tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2021.
Are donations to IOWA SCIENCE OLYMPIAD tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does IOWA SCIENCE OLYMPIAD file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of IOWA SCIENCE OLYMPIAD 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 IOWA SCIENCE OLYMPIAD 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 IOWA SCIENCE OLYMPIAD?
The 990-N for 2024 names Jill Maroo.

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