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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 35-2440986

CENTER FOR SUSTAINABLE SYSTEMS INC

Tax-exempt · MONTPELIER, VT 05601

Address and contacts

Address (IRS master file)
PO BOX 1345, MONTPELIER, VT 05601-1345
In care of
% THOMAS SABO
Mailing address (990-N for 2024)
PO Box 1345, Montpelier VT 05601
Principal officer (990-N for 2024)
Thomas Sabo, 427 Minister Brook Road, Worcester VT 05682

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, 2026Not due yet
2024June 30, 2025November 17, 2025990-N on file
2023June 30, 2024November 15, 2024990-N on file

File the 2025 990-N for CENTER FOR SUSTAINABLE SYSTEMS INC

Due November 16, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
35-2440986
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)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Thomas Sabo
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Tom Sabo
June 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Tom Sabo
June 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Tom Sabo
June 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Tom Sabo
June 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Tom Sabo
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 35-2440986).

Questions about CENTER FOR SUSTAINABLE SYSTEMS INC

What is the EIN of CENTER FOR SUSTAINABLE SYSTEMS INC?
The employer identification number (EIN) of CENTER FOR SUSTAINABLE SYSTEMS INC is 35-2440986.
Is CENTER FOR SUSTAINABLE SYSTEMS INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2012.
Are donations to CENTER FOR SUSTAINABLE SYSTEMS INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CENTER FOR SUSTAINABLE SYSTEMS INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of CENTER FOR SUSTAINABLE SYSTEMS INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did CENTER FOR SUSTAINABLE SYSTEMS INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended June 30, 2025.
Who is the principal officer of CENTER FOR SUSTAINABLE SYSTEMS INC?
The 990-N for 2024 names Thomas Sabo.

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