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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 45-1620528

EARTH EXPLORERS INC

Also known as EARTH EXPLORERS

Tax-exempt · BOULDER, CO 80302

Address and contacts

Address (IRS master file)
1620 20TH ST, BOULDER, CO 80302-0000
In care of
% LIZ SIMS
Mailing address (990-N for 2025)
1620 20th St, Boulder CO 80302
Principal officer (990-N for 2025)
Carolyn Taber, 1225 Van Buren St, Missoula MT 59802

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 EARTH EXPLORERS INC

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

IRS record

EIN
45-1620528
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
2011
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B90)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Carolyn Taber
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Carolyn Taber
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Carolyn Taber
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Carolyn Taber
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Carolyn Taber
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Carolyn Taber
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Carolyn Taper
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 45-1620528).

Questions about EARTH EXPLORERS INC

What is the EIN of EARTH EXPLORERS INC?
The employer identification number (EIN) of EARTH EXPLORERS INC is 45-1620528.
Is EARTH EXPLORERS INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
Are donations to EARTH EXPLORERS INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does EARTH EXPLORERS INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of EARTH EXPLORERS 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 EARTH EXPLORERS 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 EARTH EXPLORERS INC?
The 990-N for 2025 names Carolyn Taber.

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