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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 84-3483930

SUSTAIN FOND DU LAC

Tax-exempt (reinstated) · FOND DU LAC, WI 54937

Address and contacts

Address (IRS master file)
W7049 BROWN RD, FOND DU LAC, WI 54937-9171
In care of
% AMANDA HATCH
Mailing address (990-N for 2025)
W7049 Brown Road, FOND DU LAC WI 54937
Principal officer (990-N for 2025)
Nicholaus Teifke, W7049 Brown Road, FOND DU LAC WI 54937

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 SUSTAIN FOND DU LAC

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

IRS record

EIN
84-3483930
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
2022
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Environment (C01)

Revocation and reinstatement

Exemption revoked
May 15, 2022
Posted by the IRS
August 8, 2022
Reinstated
Effective May 15, 2022

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Nicholaus Teifke
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Nick Teifke
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Nick Teifke
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Nick Teifke
December 31, 2022≤ $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 84-3483930).

Questions about SUSTAIN FOND DU LAC

What is the EIN of SUSTAIN FOND DU LAC?
The employer identification number (EIN) of SUSTAIN FOND DU LAC is 84-3483930.
Is SUSTAIN FOND DU LAC tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2022 and reinstated it effective May 15, 2022.
Are donations to SUSTAIN FOND DU LAC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SUSTAIN FOND DU LAC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SUSTAIN FOND DU LAC 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 SUSTAIN FOND DU LAC 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 SUSTAIN FOND DU LAC?
The 990-N for 2025 names Nicholaus Teifke.

Other nonprofits in FOND DU LAC

All nonprofits in FOND DU LAC · Wisconsin · Environment