Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 84-3525151

ARTEMIS CHAMBER ORCHESTRA

Also known as ACO

Tax-exempt · WILMETTE, IL 60091

Address and contacts

Address (IRS master file)
601 HUNTER RD, WILMETTE, IL 60091-2213
In care of
% VANGELIS ECONOMOU
Mailing address (990-N for 2025)
601 Hunter Road, Wilmette IL 60091
Principal officer (990-N for 2025)
Diana Economou, 601 Hunter Road, Wilmette IL 60091

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 ARTEMIS CHAMBER ORCHESTRA

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

IRS record

EIN
84-3525151
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 2025
Officer: Diana Economou
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Diana Economou
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Diana Economou
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Diana Economou
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Diana Economou
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Diana Economou
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 84-3525151).

Questions about ARTEMIS CHAMBER ORCHESTRA

What is the EIN of ARTEMIS CHAMBER ORCHESTRA?
The employer identification number (EIN) of ARTEMIS CHAMBER ORCHESTRA is 84-3525151.
Is ARTEMIS CHAMBER ORCHESTRA tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Are donations to ARTEMIS CHAMBER ORCHESTRA tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ARTEMIS CHAMBER ORCHESTRA file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of ARTEMIS CHAMBER ORCHESTRA 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 ARTEMIS CHAMBER ORCHESTRA 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 ARTEMIS CHAMBER ORCHESTRA?
The 990-N for 2025 names Diana Economou.

Other nonprofits in WILMETTE

All nonprofits in WILMETTE · Illinois · Arts, culture and humanities